#arduino uno save me... | Explore Tumblr posts and blogs

physicalcomputingwithj · 4 years ago

Text

Experiment #4 : Look Emitting Diodes

Experiment conducted 2021/03/16

I decided to have a look at the components provided in the kit and see which might be fun in combination. I saw the joystick and 8x8 led matrix display, and thought it might be fun to make something that moves around on the screen depending on the joystick input. As I made the screen display a face you can make look in different directions, I've dubbed them the "Look Emitting Diodes"!

Components Used

This experiment uses the Arduino UNO R3 Project Starter Kit.

1 x UNO R3 Controller Board (the Arduino)

1 x Breadboard

Breadboard jumper wires

1 x 8x8 LED Dot Matrix Display (MAX7219)

1 x Joystick

Part 1: Wiring the Display

The Wiring

I first connected the 8x8 matrix display as shown. n.b. TinkerCAD doesn't have an LED matrix or a joystick, so I created both in MS Paint.

To be able to control the display from the Arduino, I installed the LedControl library by Eberhard Fahle V1.0.6. I ran the example code from lesson 15 of the Elegoo starter kit PDF to verify that the display was working!

youtube

Can't see the video? Watch it on YouTube!

The Code

To see how I could write my own output to the display, I wrote a program that displayed the static outline of my eyeball, with intention to add the moving pupil next.

At the start of the program, we include the LedControl library and initialise an interface to our display.

#include "LedControl.h" // LedControl library by Eberhard Fahle V1.0.6. LedControl display = LedControl(12, 10, 11, 1); // Connect to DataIn, CS, and CLK respectively

Next, I create a constant array of bytes, which I essentially treat as an 8x8 2D array of bits. In C++, putting a B before a sequence of ones and zeros creates a byte literal, meaning the language will interpret the numbers as binary, and not base 10.

// An array of bytes, where each byte corresponds to a column, and each bit to an LED // The array is constant as it stores the static parts of the eyeball const byte eyeball[8] = { B00111100, B01000010, B10000001, B10000001, B10000001, B10000001, B01000010, B00111100, };

In the setup function, we prepare the display for showing our output. Most notably, we have to wake up the display from power saving mode.

void setup() { display.shutdown(0, false); // This "wakes-up" the display, which is in power saving mode by default display.setIntensity(0, 8); display.clearDisplay(0); }

In the loop function then, we literate over each byte in the array, and write it to the corresponding column in the display. Thankfully, the library handles the complexity of this for us!

void loop() { for (int col = 0; col < 8; col++) { display.setColumn(0, col, eyeball[col]); } delay(1000); // These delays are just in place for testing display.clearDisplay(0); delay(1000); }

You can view the complete code on GitHub.

Part 2: Completing the Eyeball

The Wiring

Next I wired the joystick, which was pretty straightforward. I didn't wire up the switch pin and I wasn't using it for this experiment, though I suppose I could have rigged it up to trigger a blink animation. Throughout the experiment I kept switching which wire I treated as the "x" input and which as the "y" as I kept holding the joystick at different angles.

The Code

To be able to read in from the joystick I updated my setup function.

void setup() { Serial.begin(9600); pinMode(A0, INPUT); // Read in the 10-bit analog signal from pin A0 (x signal) pinMode(A1, INPUT); // Read in the 10-bit analog signal from pin A1 (y signal) display.shutdown(0, false); // This "wakes-up" the display, which is in power saving mode by default display.setIntensity(0, 8); display.clearDisplay(0); }

The real magic of drawing the moving pupil then I do in the loop function, predominately through the use of bit operators.

void loop() { int x = 1023 - analogRead(A1); // Doing 1023 minus the singal inverts it, which I did to ensure the pupil's vertical movement is not inverted from that of the joystick's int y = analogRead(A0); // Downscale the input range to the width/height of the matrix // Bitshifting the 10 bit input 7 bits to the right causes it to be 3 bits, i.e. 0-7 x = x >> 7; y = y >> 7; // Draw the eyeball byte pupil = 3 << x; // 3 is 11 in binary. These bits are then shifted as far as they need to go for (int i = 0; i < 8; i++) { byte col = eyeball[i]; if (i == y || i == y - 1) { col = col | pupil; // | is the bitwise inclusive OR operator. Each bit of it's operator is the result of ORing the corresponding bits in it's inputs // In essence, this combines the outline of the eyeball with the pupil } display.setColumn(0, i, col); } display.clearDisplay(0); // Clear the display }

With the exception of some odd behaviour around the edges, it worked well!

You can view the complete code on GitHub.

youtube

Can't see the video? Watch it on YouTube!

Part 3: A New Face in Town

Now the experiment was working, I decided a single eyeball was a little creepy, and wanted to replace it with a face that had two eyes. This worked in largely the same way as before, but I added some additional logic to make the eyes move closer together as the user moves up against the edge of the display. As each eye is just a line, I do this by clamping the x position of each eye to be within certain bounds. Though, this code got a little messy as I tried to find ways to let the user reach the edge of the display without having to push the joystick absolutely as far as it could go.

When writing my new code, I also realised that I didn't need to clear the display on each loop. This is because when the library writes each byte, it still writes the zeros, essentially clearing anything that was there before.

This is the loop function of the new code.

void loop() { int x = analogRead(A1); int y = 1023 - analogRead(A0); // Doing 1023 minus the singal inverts it, which I did to ensure the pupil's movement is not inverted from that of the joystick's // Map the positions to the range of the display, and also clamp the positions x = map(x, 0, 1023, -3, 3 + 1); y = map(y, 0, 1023, -7, 1 + 1); x = min(x, 3); y = min(y, 1); // Determine the position of the eyes int top = 6 + y; int left = 2 + x; // (the x axis is 0 at the right side of the matrix from my perspective) int right = 5 + x; // Clamp the positions right = constrain(right, 2, 7); // These are likely muddled up! left = constrain(left, 0, 5); // Draw the eyes for (int i = 0; i < 8; i++) { byte row = 0; if (i == left || i == right) { row = B111 << top - 1; } display.setRow(0, i, row); // Now we are drawing rows, not columns, as that made the most sense for the new vertical lines for eyes } }

You can view the complete code on GitHub.

Hello World!

youtube

Can't see the video? Watch it on YouTube!

I think the end result is pretty charming! It was definitely an interesting application of binary bit manipulations and helped me practise my skills in using them. Though, the final code could definitely be un-muddled and improved. I definitely learned more about what to be thinking about when interpreting input signals from electronics in non-continuous ways - dealing with nuances such as ensuring the absolute maximum value of the input signal does not have it's own discrete output value.

0 notes

dutifullyhappypeanut-blog1 · 5 years ago

Text

Laser-Cut Prototypes

Second round prototypes of laser-cut cardboard glasses are much better than the first iteration. (You can see the massive first prototype at the bottom and more properly scaled-down second two prototypes at the top.)

Despite the shape and size being much more fit to a face, the cardboard material is too flimsy to support the Arduino system with battery. Therefore, I am currently working on a prototype using a pair of plastic BDW safety glasses that is more robust for carrying such weight.

Furthermore, originally, I had a used an Arduino Uno as my microcontroller. The system worked well! To alert a user of a nearby object detected by the ultrasonic distance sensor, between 6 feet and 1 foot, the buzzer in the system beeps at a frequency of 100 Hz for 500 milliseconds each. Within 1 foot, the buzzer emits one continuously long beep. Otherwise, outside of those distances, the buzzer does not sound. One issue I noticed was that I sometimes had to connect my Arduino board to my laptop to power up the system, which makes me speculate if there is something wrong with my 9V battery (or maybe it simply is not enough).

https://drive.google.com/file/d/1i1OPM7YmAKr-BZSH9lKUfVqUkB8SscSG/view?usp=sharing

However, I’ve now switched to an Arduino Nano so that the board can fit more easily onto a pair of glasses and places less stress on the wearer’s ears and nose bridge. Based on Marco’s suggestion, I’m also working on making the distance intervals of beeping more granular and therefore user-friendly. Unfortunately, I ran out of GND pins on the Nano; therefore, I’ll be soldering the other GND pins together and connecting them to one GND pin to save space.

0 notes

technicallycoolalpaca · 5 years ago

Text

Learning advice

Hi I need some help with my project on Arduino uno

When I write this code to CMD it only writes the data to data.txt but not showing it me, I want the opposite (see the data but not save it)

mode COM4 BAUD=9600 PARITY=n DATA=8 echo d >COM4 COPY COM4 data.txt

and I want to make a small widget to show the output, which program should I learn?

submitted by /u/Barood_D [link] [comments] from Software Development - methodologies, techniques, and tools. Covering Agile, RUP, Waterfall + more! https://ift.tt/3bnBTVc via IFTTT

#IFTTT #Software Development - methodologies #techniques #and tools. Covering Agile #RUP #Waterfall +

0 notes

grandpaswagger · 5 years ago

Text

Dr.Duino Shield for the Arduino Uno are multifunctional electronics tech board. Let’s meet the man who invented Dr.Duino Shield.

I’ve always been fascinated by the electronics technology industry since I was a young teenager. My older brother, Bobby, as my guide, teacher, would repair and fix broken or damaged electronics. Over the years I have fixed and repaired countless of electronics, tv’s, vcr’s, stereo’s, dvd players, cell phones, laptops, desktop computers, ect…

I was recently in Facebook platform, and that’s when I found Dr.Duino Shield as an ad of his, and became part of my scroll in feeds of the social media communities platform. I’d log into the platform, as most of the world does, and there sat Dr.Duino Shield ad, being faithful in my feed.

http://www.drduino.com/

Arduino Uno and Dr.Duino Shield being put together to create some project someone has in mind.

I wandered over to his website, http://www.drduino.com, and looked around to see what it’s all about. The sites owner, Guido Bonelli, is an electronics engineer teacher, inventor and founder of Dr.Duino Shield Company. An instructor in his products and guides his students and customer’s hands, knowledge and skills, into the best they can be in the interests of electronics technology. The electronic Dr.Duino Shield tech board was created and invented to go along with the electronics tech board Arduino Uno and I believe other boards created by the Arduino Electronics Tech Company. He has created a VIP room for his customer’s on Facebook’s platform, to which they can meet other people that have the same common interest in mind and that’s bought his products. Guido gives insight to what’s coming up next in his agenda. I was part of this VIP community of his, until I canceled my account and we all learned together and from one another.

Personally, I have great respect for this man, teacher, electronics engineer and inventor/founder for Dr.Duino Shield for allowing me the honor of writing this story of him and his products, Guido Bonelli, his brilliance in the technology profession.

He really is very good man, very knowledgeable in his career, and, “I say this to the fullest degree of it’s phrase”. On Wednesday evenings, Guido Bonelli has devoted his time to a young group students and teaches and mentor’s them about electronics, it’s fundamentals and coding and various other scenarios. How electronics has been shaping our world every single day. Here’s a link to his group of students he’s devoted time too. Have a look;

https://www.drduino.com/blogs/news/103468487-dr-duino-s-stem-class-controlling-90-led-s-via-bluetooth

Arduino Uno with Dr.Duino Shield

With Arduino Uno and Dr.Duino Shield creating another project. There are so many different variables out there for the two Tech Giants in their inventions.

The inventor/founder of Dr.Duino Shield and cqompany.

Guido Bonelli, a brilliant electronics engineering teacher, inventor, dedicated to his students and customer’s in the shaping of our electronics industry and how it will shape our world in many different ways, some life saving too.

Thank you Guido Bonelli for allowing me the honor in writing this/your story. Written by William Darnell Sr. Formally known as; © Creative Writing Creatively | 2019, Now: “Writer’s, Writing Words:’ being characters“

Source – “Writer’s, Writing Words:‘ `being characters” igotadreaminheart.wordpress.com

#Electronics #Technology

0 notes

dfrobots-blog · 6 years ago

Text

How to make a holiday window decoration with LED strip

My friend said that it is wasteful to make a holiday window decoration with LED strip. All in all, holiday only lasts couple of days, so we have to split and remove it just after few days. On second thought, that’s the truth. This time, I want to make something useful. The smart phone should be powered off during charging. You know smart phones are a little dangerous when be powered. (SAMSUNG S10 explosion…) But how could we check time whenever we want? Of course, a clock. Surfing the internet but failed, big clocks take too much space, small ones are hard to check the time. Well, a bright idea came up with a brainwave, I decide to make my own clock.It is a rocky road but finally I succeed. When heard of praises like it is beautiful, all these are worthy. Once open the door, a cute window clock jumps into my sight. With thousands of lamps at dark, the clock is so charming. At this time, joys spilt out from my heart, I truly know the answer of what’s the reality from the movie Forever Young.Clock on the window---Light Year

Design IdeaCombine solar power manager with 15 solar panels to make an independent electricity supply to power the clock. The solar power helps us get rid of the restrict of external wires and the window would not be choked by long wires and switches. According to the energy amount, the clock responds to 3 modes.Mode1(energy>70%): the clock keeps light ON.Mode2(70%>energy>50%): the clock flashes to save power.Mode3(energy>50%): the clock keeps light OFF but wake up periodically. With the decrease of the energy, its sleep time will increase exponentially.In this way, the clock can work for one month even without any sunlight to supply energy. And the light sensor can adjust the clock lightness to adapt the environment light changes. So, no matter what whether it is, sunny, cloudy or night, we all can enjoy a comfortable watching.Visual Design

Considering people always pay attention to 2 values hour and minute, I weaken the visual proportion that the second takes, and simplify the second to matrix flash.

Material List1.

DFR0535 Solar Power Manager (for 9V/12V/18V solar panel)x1

2.Silicon Solar Panels(9V) x15

3.3.7v/10000mah Lithium Battery x1

4.Gravity: I2C 3.7V Li Battery Fuel Gaugex1

5.DFRduino UNO R3 - Arduino Compatiblex1

6.Gravity: I2C DS1307 RTC Modulex1

7.Gravity: Analog Ambient Light Sensor For Arduinox1

8.WS2812B RGB led x80

(combines with enameled wires and 3M twin adhesive)

9.NPN triode (10k resistor) x1Talking about the Solar Power Manager, we should know its multiple ports.

There are 8 ports at least:Micro USB input x1

3.7V inputs x2

(the 3.7v lithium battery can be charged when solar panel inputs or micro USB inputs are provided)

7v~30v solar power input x1

5V 1.5A output x1

3.3v 1A output x1

9v/12v 0.5A output x1

5v 1.5A USB output (which can directly supply UNO) x1The maximum charge current up to 2A. The MPPT (Maximum Power Point Tracking) algorithm is adopted which maximize the solar power and capture the solar energy effectively. Just like a talented conductor who hold a delicate baton, it performs excellent in every wave. Therefore, all electrons move to destinations in order.

Connection Diagram

Let’s make it!

1.Modeling

2.Laser cutting drawing (the purple lines are indications for soldering)

3.Laser cutting 3mm boards (the super small dots next to square holes are to indicate the direction of the LED notch).

4.Allocate LEDs

5. Soldering enameled wire

During soldering, my friend just said “Oh my gosh, are you wanting to solder to die?” Well, finally I survived. Adhere the board to window, it seems a little tilt. Try my best to hold me back from tear it apart (I am Virgo… and a little obsessive). Power ON, many LEDs just burnt immediately without any reason. So I have to take all of them down and solder again. Try the second, perfect straight post! Now it fully relief me.

6.Put 3M twin adhesive(1mm) to the back of LEDs:

7.Connect solar panels in parallel, then paste them in the direction of window frame with 3M twin adhesive, put hot glue to the loosen parts.

8.Fix solar power manager, arduino UNO and sensors near to LEDs.

arduino UNO and Lithium battery:

Tear all 3M adhesive in the LED board apart, take tools to paste to window in parallel and split LED and board apart slowly and carefully.LEDs are allocated in the inner side and the controllers and other are allocated in the other side of the window. So we need to probe a small hole to go through the window frame and make LED enameled wire to the outside.

9.Wiring as the connection diagram suggests and burn the program.

10.Put the clock between 2 glasses. The glass reflections and refractions make a fantastic infinite space effect. It looks more layering.

11.Define the color

Enjoy!

0 notes

author-swagger · 5 years ago

Text

Dr.Duino Shield for the Arduino Uno are multifunctional electronics tech board. Let’s meet the man who invented Dr.Duino Shield.

http://www.drduino.com/

Arduino Uno and Dr.Duino Shield being put together to create some project someone has in mind.

https://www.drduino.com/blogs/news/103468487-dr-duino-s-stem-class-controlling-90-led-s-via-bluetooth

Arduino Uno with Dr.Duino Shield

With Arduino Uno and Dr.Duino Shield creating another project. There are so many different variables out there for the two Tech Giants in their inventions.

The inventor/founder of Dr.Duino Shield and cqompany.

Source – “Writer’s, Writing Words:‘ `being characters” igotadreaminheart.wordpress.com

#Electronics #Technology

0 notes

kalebuchanan · 6 years ago

Text

Space Image Sound - Week 9

The AV Switcher is operational.

At the end of last week I got the AV switcher working, after spending nearly an entire day frustrated at my code and circuitry it turned out I was using a faulty power supply. Now, it works!

My code can now turn on NES by press 1 on the keyboard, turn it off by pressing 2, turn on the SNES by pressing 3 etc.

It’s great to have this working now, however I have just become aware that we only have three more weeks to complete this, and I have only done about 1/7 of what I promised the group I would do. I did prior research on the controllers and found the tutorials on how to get the controllers working. From my research the NES seems simple, and it looks like the SNES controller is essentially the same controller as the NES controller. What I am hoping at this point is that I will get the NES controller working with Arduino and then just port the code straight to the SNES controller.

I loaded the code to the Arduino and followed the diagram below:

https://www.allaboutcircuits.com/projects/nes-controller-interface-with-an-arduino-uno/

I plugged it in and it didn’t work. We are currently using the spliced ends of the extensions, which are not made to be cut and I just assumed that the wires on the inside would match the wire colours on the actual controllers. I couldn’t have been more wrong.

I had wires like this:

Tim and Simon helped me identify the colours of the wires and created this key which helped me greatly and saved me time while I was busy with the rest of the project.

Now that I had the colours of the wires I was able to link up the NES controller and I got it working in Arduino. I feel like I need to be doing more to get this completed by the due date, however as it was a challenge to get one controller working and it is approaching fast.

#ctec700

0 notes

daparjs-blog · 6 years ago

Text

Arrived

Midterm week ended so easily, so as our pitching. Uneasy feeling is still there caused by my not so high performance in the past exams. This was another week full of new learning during classes and lectures. During our Techno class, our instructor Engr. Mabulay discussed about the Minimum Viable Product (MVP). It’s now Tuesday, exactly a week after the pitching but the materials were still on its way and we are hoping for its fast arrival. I start to create some testing programs for our materials especially for the sensor. Even though materials are not around its better to prepare codes early so it will be tried when the materials arrive. We prepared an Arduino Uno board as the microcontroller that will be used in the testing. I bought a new data cable for the Arduino Uno board because the one which was included of its purchased was not working. An arduino IDE also was installed in our laptops, it will be the one who will compile our code and upload it to the Arduino Uno board. One night at home I heard news about a car being robbed. It was done by breaking one of the glass windows of the car. I feel sad for the car owner. The valuable things inside might be save if our project was created a way earlier. It gives me motivation for our project because I want to stop that certain event from happening with the help of our car alarm system. Finally! The components have arrived. It took long enough for it to arrive but finally we can now start doing our MVP. We know this week will be the start of the busiest week. The materials are in good shape and were transported safely. It is still partial but we can make a big achievement with these. Requirements from other subject’s strikes we know we could do this because the Lord God will always guide us.

0 notes

blogdeprogramacion · 6 years ago

Text

Introducción a arduino - Tutorial de arduino #1

Introducción a arduino - Tutorial de arduino #1 aparece primero en nuestro https://jonathanmelgoza.com/blog/introduccion-a-arduino/

Hoy vamos a iniciar una serie de articulos sobre un tema que me apasiona demasiado, arduino. El primer post del día de hoy estará dedicado a dar una pequeña introducción sobre la placa o un tipo de post de primeros pasos en arduino, espero y puedas acompañarme a lo largo de esta serie de tutoriales para que juntos conozcamos más sobre arduino.

En lo personal siempre me ha encantado la electrónica, al igual que la programación ( que es mi profesión principal ) me encanta la idea de crear cosas de la nada.

Siempre me ha encantado esa sensación de crear un programa o sistema que antes no existía, en esta seríe de articulos haré lo mismo pero fisicamente creando circuitos y proyectos que nos plantemos en la mente.

Hoy vamos a comenzar con un articulo de introducción a arduino para hacer las cosas correctamente y en un orden coherente.

Para el día de hoy no es tan necesario contar con la placa arduino pero si la tienes en tus manos mucho mejor, abajo en el articulo te digo donde adquirir un arduino generico a un buen precio.

También te recomiendo ampliamente el articulo donde hablo sobre definicion de voltaje, intensidad de corriente y resistencia si es que no tienes conocimientos previos de electricidad y como mediarla.

Lo que haremos será ir identificando qué es arduino, sus caracteristicas, saber identificar sus partes, conocer su entorno de programación lógica y por supuesto ejecutar un pequeño hola mundo.

¿Te animas a aprender arduino? Vamos ya con la introducción a arduino.

¿Qué es arduino?

Arduino es un proyecto open source para crear prototipos electrónicos, se conforma de hardware y software que nos permiten crear desde proyectos muy básicos hasta bastantes complejos.

Con arduino las posibilidades de proyecto son enormes y siempre definidas por tu imaginación y conocimiento de la placa.

Hablando de la placa, ésta se compone de entradas y salidas con las que podemos comunicarnos con el mundo exterior, asi como de una memoria para almacenar la programación de nuestro proyecto.

En pocas palabras es como un mini pc que puede hacer lo que le digas que haga, ¿Te imaginas un robot que camine alrededor? ¿Un brazo robotico? ¿Un circuito para tomar las medidas de la tierra en un huerto? Y un gran etc!

Hablando del entorno de programación, arduino es también el nombre del IDE o software donde escribimos el codigo de programación que cargaremos en nuestra placa arduino para controlar las acciones que ésta realizará.

Como puedes ver las posibilidades de arduino son enormes, en lo personal me parece una herramienta increíble para acercar a las personas a la electrónica pero no solo para propositos educativos pues realmente puedes hacer proyectos profesionales y útiles para cualquier ámbito profesional.

En este post de introducción a arduino, y posiblemente en la mayoría de los que vienen, nos basaremos en arduino uno.

¿Donde comprar un arduino?

Adquirir una placa arduino es muy fácil, hoy en día puedes comprar casi cualquier cosa por internet y te llega en cuestion de uno o dos días, comprar un arduino por internet es bastante simple.

Existen varias tiendas de electronica en Internet donde adquirir el material necesario para este y los próximos tutoriales de arduino, además por supuesto nuestra placa.

Cuentan con envio a domicilio y con el famoso kit de inicio de arduino que puedes considerar en adquirir en este momento.

Prometec.mx es una excelente opción para adquirir nuestro material y es la que estaré recomendando a lo largo de esta serie de tutoriales arduino.

Ofrece un gran catalogo de productos de electronica y precios bastante accesibles para nuestro bolsillo.

Comprar placa Arduino UNO en México en la tienda Prometec.

Caracteristicas de arduino

Arduino tiene enormes ventajas y sus principales caracteristicas se mencionan a continuación:

Arduino es multiplataforma, se ejecuta en cualquier sistema operativo.

Mezcla software con hardware, además de la placa cuenta con un IDE de desarrollo.

Se sigue mejorando el lenguaje de programación

Es posible crear y extender tu propia placa

Es económico

Es open source

Además de todo esto es importante resaltar que existe gran cantidad de información en Internet con lo que se convierte en una herramienta lider en electrónica para cualquier tipo de proyecto.

Arduino UNO R3

Antes que nada en esta introducción a arduino resaltar que nosotros estaremos trabajando principalmente con la placa arduino uno r3, tanto en este post de introducción a arduino como en los siguientes tutoriales de arduino, en caso de que se haga un post sobre otra versión de la placa se indicará.

Aspectos técnicos de arduino uno r3:

Utiliza el mictrocontrolador ATmega328

Tensión de funcionamiento de 5V

Voltaje de entrada recomendado de 7 – 12V

14 pines de entrada/salida (6 pueden ser salida PWM)

6 pines PWM de entrada y salida

6 pines de entrada analógica

20 mA de corriente por pin

60 mA de corriente para pin 3.3V

Memoria Flash de 32 KB

SRAM de 2 KB

EEPROM de 1KB

Velocidad de reloj de 16 MHz

Peso 25 g

Medidas de 68,6 mm x 53,4 mm

Identificando las partes

Para continuar con esta introducción a arduino es necesario mencionar que arduino puede ser alimentada de varias formas, mediante el cable usb al ordenador o mediante una fuente externa.

Cuenta con un espacio para conectar un jack de 2.1mm para conectar el arduino a una fuente de energia de 7 a 12 V.

También cuenta con un espacio para conectar el arduino via USB al ordenador para su programación y también para su alimentación de energia.

Los pines GND son tierra.

Los pines de 3.3V y 5V son pines de vote y entregan su correspondiente energia, son muy útiles cuando hay que alimentar modelos específicos.

Los pines digitales pueden configurarse como entradas o como salidas.

Los pines analogicos de entrada utilizan un convertidor analógico digital para convertir la señal a digital y poder leer sensores.

Los pines analogicos de salida (funcionales con PWM) son útiles para obtener una salida analógica, solo algunos pines digitales pueden ser utilizados como salidas digitales.

La placa arduino cuenta con un botón de reset incluido en el circuito.

Un led es incluido en el PIN 13.

Entorno de programación

En esta introducción de arduino no podia faltar el lenguaje de programación.

Ahora que conocemos un poco mejor la placa gracias a esta pequeña introducción a arduino veamos como programar nuestro arduino mediante un lenguaje de programación.

Arduino (la placa) maneja el lenguaje de programación arduino, que no es nada más que un set de instrucciones c/c++, así que si sabes estos lenguajes ya estas del otro lado.

También incluye su propio IDE de programación que puedes descargar el sitio web oficial de arduino.

Una vez descargado procederemos a instalarlo como cualquier otro software.

Ya que este instalado procederemos a abrirlo y exploramos un poco para conocerlo a detalle.

Hola mundo

Ahora nos aseguramos de tener conectado a nuestro ordenador via USB y que este correctamente seleccionado en el menu Herramientas –> Puerto.

A modo de ejemplo o clásico Hola Mundo vamos a abrir un programa de ejemplo que ya viene cargado en nuestro IDE arduino para analizarlo y ejecutarlo en nuestra placa.

Esto nos ayudará a familiarizarnos con el programa y con el proceso de subir programar nuestro Arduino.

Vamos a Archivos –> Ejemplos –> Digital –> BlinkWithoutDelay y veremos el siguiente código:

/* Blink without Delay Turns on and off a light emitting diode (LED) connected to a digital pin, without using the delay() function. This means that other code can run at the same time without being interrupted by the LED code. The circuit: - Use the onboard LED. - Note: Most Arduinos have an on-board LED you can control. On the UNO, MEGA and ZERO it is attached to digital pin 13, on MKR1000 on pin 6. LED_BUILTIN is set to the correct LED pin independent of which board is used. If you want to know what pin the on-board LED is connected to on your Arduino model, check the Technical Specs of your board at: https://www.arduino.cc/en/Main/Products created 2005 by David A. Mellis modified 8 Feb 2010 by Paul Stoffregen modified 11 Nov 2013 by Scott Fitzgerald modified 9 Jan 2017 by Arturo Guadalupi This example code is in the public domain. http://www.arduino.cc/en/Tutorial/BlinkWithoutDelay */ // constants won't change. Used here to set a pin number: const int ledPin = LED_BUILTIN;// the number of the LED pin // Variables will change: int ledState = LOW; // ledState used to set the LED // Generally, you should use "unsigned long" for variables that hold time // The value will quickly become too large for an int to store unsigned long previousMillis = 0; // will store last time LED was updated // constants won't change: const long interval = 1000; // interval at which to blink (milliseconds) void setup() // set the digital pin as output: pinMode(ledPin, OUTPUT); void loop() // here is where you'd put code that needs to be running all the time. // check to see if it's time to blink the LED; that is, if the difference // between the current time and last time you blinked the LED is bigger than // the interval at which you want to blink the LED. unsigned long currentMillis = millis(); if (currentMillis - previousMillis >= interval) // save the last time you blinked the LED previousMillis = currentMillis; // if the LED is off turn it on and vice-versa: if (ledState == LOW) ledState = HIGH; else ledState = LOW; // set the LED with the ledState of the variable: digitalWrite(ledPin, ledState);

Tomate tu tiempo para leer y analizar el código fuente mostrado antes de ejecutarlo.

Puede que en este punto no comprendas mucho del código ( o tal vez si ) pero bastará para ir metiendo los pies un poco en arduino y en su lenguaje de programación.

Para subir el compilado a arduino es necesario antes que nada verificar el código escrito, o en este este caso que abrimos, haciendo clic en el botón de verificar (la palomita arriba a la izquierda).

Una vez verificado que no tiene errores vamos a proceder a subirlo dando clic en el botón de subir (flecha apuntando a la derecha en junto al de verificar) y esperemos.

Cuando un set de instrucciones esta siendo subido al arduino podemos ver el proceso en la barra de abajo de nuestro IDE, también verás que algunos les de comunicación de nuestro arduino comienzan a parpadear.

En resumen este pequeño programa lo que hace es hacer parpadear el led asociado al PIN 13 de nuestra placa (¿Recuerdas que te mencione que el pin 13 tenia asociado un led?).

En este ejemplo no es necesario realizar ningún tipo de conexión en nuestro arduino o incluir alguna modulo, es obvio que en otros proyectos más completos necesitaremos realizar ‘algo màs’.

Eso es todo en este primer capitulo de introducción a arduino, en los siguientes capítulos o entradas avanzaremos más en explicar componentes en especifico o realizar proyectos cada vez más extensos.

No olvides compartir este post en redes sociales o dejarme tu comentario si tienes alguna duda al respecto.

Hasta luego!

#arduino #definicion #es #introduccion #que #tutorial

0 notes

vallyeah · 6 years ago

Text

Arduino->Processing//team project//week 9

Make a processing application that uses one (or more) sensor value

We created a game involving the use of a light sensor because we couldn't find out a proper way to use the NFC sensor we researched about last week. We followed professor’s recommendation last week: ‘Recommended using last week’s sensor. (Not mandatory)’. All the videos for reference and the codes are in this google drive: https://drive.google.com/drive/folders/16dJd2E7Uv0RuhlUK5RFaGAn7eHf47_zV?usp=sharing

Abandoning NFC sensor (for now) We met up one day thinking that we should try and see what could we do with NFC, given that we have two tags given to us in the package we bought. We initially thought of a fortune teller application which allowed the reader to see their ‘fortune’ when they put their phone on the sensor. Problem 1: a teammate started asking me so are we using the phone as a sensor itself? or a tag? - I instinctively thought that we could follow the ‘adopt a dog NFC project’ where the phone would run across the poster and be redirected to a website on the person’s phone. Meaning, that that would make the phone a sensor instead of using the one we bought. Problem 2: We must use the sensor we bought as we needed to use it and be redirected to Arduino and processing on the computer. Hence, we thought we could use the phone as a tag instead and have the ‘fortune’ show up on the computer screen. It seemed easy enough. Problem 3: We then went online to search whether the phone can be used as a tag. That was very confusing therefore we chose to just use the tags that came with the sensor. However, even finding the unique code/name of the tag proved to be too difficult for us to configure something in time for class on Monday therefore, we decided to ditch the subject.

Back to square one So we started thinking that we don't really have time to get a new one and if so we need an easier one to make it in time for Monday's class. Behold, there were 4 photocells PDResistor’s in Jiho’s Arduino kit. Hence, we decided to go with that sensor and make the application more interesting to make up for the loss in difficulty. Honestly, at the side i was still researching about the NFC sensor as i can't let a good idea go, Jiho came up with an incredible plan, where he thought of a cave game where the players have to dodge rocks by shining the light in a particular direction in order to know where to go.

Finding out for ourselves how does the sensor works and what can we do with it Sujin and jiho decoded one code pertaining to displaying the light directed at a light sensor and seeing if it works, we then moved on to displaying that as an image on processing! So by then, we proved that we can easily use the sensor to generate readings and the communication to processing seemed stable. We then figured we should go home and start preparing for our next meeting, so our parts for that were val-sort out readings and wiring for PDR. Sujin - figuring out arduino to processing sketch, Jiho- game interface and processing sketch.

Serial communication This was the code we referenced: https://arduinobasics.blogspot.com/2011/06/arduino-uno-photocell-sensing-light.html At first, we had some problems with the sketch as it showed us continuous problems about the port being busy, or there is no such port or there is an error. We realized that we were using COM13 which was the port that the user online was using and it didn't apply to us. We then used professor’s sketch to reList all the ports that we had and use that to refer processing to the correct port. We then had problems displaying the readings as an image on the screen however, we realized that we didn't need that for the project, therefore, we abandoned that and rewrote the code as println instead. For the code given online, they also rescaled the range of readings to a fixed 0-100 which seemed neat, however, we thought that if we were to have 3 sensors we would have to create 3 more minLight maxLight adjustedLight variables which would be hard. So we looked at our idea again and realized we don't need the readings at all we just need to know which sensor reads the maxLight at that point in time. and to do that Sujin came up with the if statements if((lightLevel1>lightLevel2) && (lightLevel1>lightLevel3)) {maxLight=lsA;} if((lightLevel2>lightLevel1) && (lightLevel2>lightLevel3)) {maxLight=lsB;} if((lightLevel3>lightLevel1) && (lightLevel3>lightLevel2)) {maxLight=lsC;} quite self-explanatory really but the thought process was hard :”)

Meeting up for assembly The day after, I was surprised by how much Jiho had done with the processing sketch! His aesthetics were on point his whole game dynamics and movements and maths were all great. I marveled at how he could create all of that in one night! At first, the same serial port problems came back but after all the proofreading - I shall cut it short ya. we found out that the processing code had a setup function in the startup screen, therefore, rendering the whole sketch to stop because setup should be only run once, therefore Sujin told Jiho to add another function: initialize. and that is what saved the day. In the videos we made, the computer screen seemed to lag, however, I think it is because I was taking a video of the whole programme running therefore it lagged.

Bring working prototype / code and show / explain it to us. Post your working process (idea > design > code & build > test) in your point of view in your blog.

0 notes

gabrielleharwood-blog · 7 years ago

Text

Center Rate Info

The Giornate del Movie theater Muto honours the half a century presence of The March's Passed. English movie historian Kevin Brownlow's classic oral history questionnaire was actually first released in 1968. High quality of the video varies but you can easily observe on cover what video high quality possess the motion picture: HD, VIDEO, CAM, 3D. About 3D films, I had not been able to examination does the films are actually in 3D, but if you have actually 3D monitor you can examine this option. This setup will definitely be per panel, as well as will apply to all debuffs on that particular raid board. Wednesday has a Community Rail Walk starting at Langho Sta, whilst on Saturday our team possess a Rail Rambler to Knutsford and also on Sunday it is the regular monthly Ribble Lowland Rambler along with a stroll beginning with Horton in Ribblesdale. " Barry" is just one of two theatrics movies (of what will certainly be numerous) that take a glance at the life of a much younger Barack Obama, the male that would certainly someday become the very first dark head of state of the United States. This is actually an usual resource of complication as people are actually attempting to delegate spells to the computer mouse buttons as well as are actually forgetting they have at some aspect helped make macros with the exact same title. If having said that, you like your macros to carry out incredibly certain things, you as if modifiers as well as time combos and so on, you can either create the macros your own self in the default macro blizz food selection, newsport-john2018.info and also bind to the mouse switches or even move them to the activity bars and make use of as any normal mouseover macros or you can use the Options-Spells-Keys Citizen area of vuhdo to save macro space. Lancaster is our upcoming Rail Rambler place this happening Saturday along with the briefer stroll consuming a number of Lancaster's absolute best sites including its Roman Catholic Basilica, Williamson Park and the Ashton Remembrance plus the Lune Acqueduct. I might possess possessed a strong 1 hour capturing opportunity, yet I only had 100mm lengthiest telephoto end with me. I took this chance to assess out the Pro Squeeze Mode Low. Beulah Bondi (Might 3, 1888 - January 11, 1981) was actually a fantastic personality starlet best-known as the mama of Jimmy Stewart's characters in 4 movies, very most particularly It's A Terrific Life as well as Mr. Smith Goes To Washington. Matock, i locate the FR model of the clock outstanding ... Yet i wan na utilize the arduino mega as opposed to the uno to have additional moment to include some more clock methods. Wager a ton of people bear in mind the "Worlds Largest Board" before the Mills and also Nebraska lumber retail store. A great day to be out on the moors - a perspective coming from yesterday's Community Rail Walk coming from Todmorden to Stoodley Pike and also back. ' Since there are actually issues along with video clip hosting company, MEGASHARE is actually closing and not updaing new motion pictures in future. Since the learn was actually cancelled at Blackburn, apologies to those that desired to join today's Neighborhood Rail Stroll which couldn't take spot. You may additionally pick to save your warm arrangement with this profile. On a particularly blustery day, the heroine of "A Fantastic Female" hikes via a twister therefore highly effective she can rarely stand upright. Software application IT solutions company. The dreadful weather is actually taking its own cost on support for our strolls with only eleven individuals ending up final Sunday. One of my few frustrations with the E-M1 Score II, is making use of the specific very same Liquid Crystal Displays contact panel as the older Olympus Micro 4 Thirds cam! If you really want to see some 2+ months outdated flick on excellent High Interpretation quality, this web site is one of the far better places. . Today I opened the code in the arduino course and also added the public libraries. The nonpayment bouquet is mana bar display yet you may change it to all power display, danger, certain HoT or even debuff display screen etc After what seems an age, the upcoming Rail Rambler occurs this happening Saturday with an opportunity to check out the Pennine community of Marsden and also its links to Final of the Summer White wine - with, possibly, an emotional see to Auntie Wainwright's store - and also the renowned Standedge Tunnels close by.

0 notes

bobsweeppethairroboticuniverse · 7 years ago

Text

Black Friday 2017 – Featured Deals

All of our teams are getting ready to break records this year. With discounts up to 99% on a vast range of products, free same-day shipping*, and hassle-free returns, this Black Friday 2017 promises to be the best we’ve ever done.

Take a first look at some of our favorite deals coming at the end of the week below, and make sure you don’t miss them! Add a reminder to your calendar, or RSVP to our Facebook event to get exclusive tips and notifications for the best deals.

Professor Einstein WiFi Enabled Talking Robot

Hello – I am Professor Einstein WiFi Enabled Talking Robot! I have inherited the famous Albert Einstein’s intelligence and science know-how so that you can explore the world through my eyes. Bring me home and get on your personal path to genius! I am an amazingly expressive and playful robot who trains your brain and teaches you science.

Professor Einstein WiFi Enabled Talking Robot

Now $159.99 – Was $199 (20% off)

DFRobotShop Rover V2 – Arduino Compatible Tracked Robot

The DFRobotShop Rover V2 – Arduino Compatible Tracked Robot (Basic Kit) is a versatile mobile robot tank based on the popular Arduino Uno R3 USB Microcontroller microcontroller. The Rover uses the popular Tamiya twin-motor gearbox and the Tamiya track and wheel set. The DFRobotShop Rover PCB incorporates a standard Arduino Uno (surface mount ATMega328), L293B motor driver (connected to pins 5 to 8), voltage regulator and prototyping area while contributing to the mechanical structure of the robot. The onboard voltage regulator allows the entire board to be powered using as little as 3.7V to ~9V*.

DFRobotShop Rover V2 – Arduino Compatible Tracked Robot

Now $58.99 – Was $89.99 (34% off)

E-Blox Circuit Builder 115 Set

Great addition to any STEM program. Learn all about electricity, current, and voltage. Play song and sounds while lights flash and a fan spins. Compatible with other building brick sets

E-Blox Circuit Builder 115 Set

Now $22.49 – Was $29.99 (25% off)

Grillbot Automatic Grill Cleaning Robot (Black)

The Grillbot Automatic Grill Cleaning Robot (Black) is a fully automated, safe and easy to use Grillbot. It is the world’s first automatic grill cleaning robotic device. Its push-button makes it easy to operate. It does all the heavy scrubbing to rid your grill of grease and grime while you get on with your life. It not only cleans your grill but allows the grill to retain its ongoing flavor. Grillbot takes the work out of it with disposable brushes and three motor power to blast away grime and grease. When finished, Grillbot alerts you with an alarm. With the Grillbot you can save yourself time and energy. It does the tough job of scrubbing and cleaning the grill so you can go ahead and do other things like watching the game or joining the family to play games. Simply put the Grillbot on your grill, press a button and you are done. Grillbot scours grease and caked-on grime leaving your grill like new. Grill cleaning has never been easier.

Grillbot Automatic Grill Cleaning Robot (Black)

Now $89.95 – Was $89.95 (14% off)

Beagle, Monkey and Cat Robotic Toy Bundle

Beagle, Monkey and Cat Robotic Toy Bundle – Cute animals that chatter and walk.

Beagle, Monkey and Cat Robotic Toy Bundle

Now $17.98 – Was $29.97 (40% off)

LittleBits Droid Inventor Kit

With the LittleBits Droid Inventor Kit, kids can create their own custom Droid™ and bring it to life! Using littleBits electronic blocks and the free Droid Inventor app, they’ll teach their R2 Unit new tricks and take it on 16+ missions. Then kids can level-up their inventor expertise and reconfigure their Droid to give it new skills, or design any Droid they can dream up. The kit comes with everything kids need to create and customize their R2 Unit straight out of the box. Initial assembly is easy with step-by-step instructions to create their Droid and control it in Drive Mode, Self-Nav, Force™ Mode, and more. After mastering their Droid Inventor skills, kids continue on to challenges that spark creativity and get them inventing brand-new Droids.

LittleBits Droid Inventor Kit

Now $80 – Was $99.99 (20% off)

Litter-Robot III Open Air Automatic Self-Cleaning Litter Box w/ 1-Year Extended Warranty (Canada only)

The Litter-Robot III Open Air Automatic Self-Cleaning Litter Box w/ 1-Year Extended Warranty makes cat ownership easier every day. It is the first major revision to the highly successful Litter-Robot platform. The larger, more ergonomic entry and litter chamber along with the new self-adjusting cat sensor accommodates all cats, large and small. It sifts clumps and waste out of the litter seven minutes after a cat uses it and drops the waste into a receptacle drawer for easy disposal.

Litter-Robot III Open Air Automatic Self-Cleaning Litter Box w/ 1-Year Extended Warranty

Now $449.99 – Extended Warranty offered for free

Clocky Robot Alarm Clock – Black

This Clocky Robot Alarm Clock runs away and hides when you don’t wake up. Clocky gives you one chance to get up. But if you snooze, Clocky will jump off of your nightstand and wheel around your room looking for a place to hide. Clocky is kind of like a misbehaving pet, only he will get up at the right time. It is also available in Clocky Robot Alarm Clock – Aqua, Almond, Raspberry, and Coco.

Clocky Robot Alarm Clock – Black

Now $26.98 – Was $34.99 (23% off)

LIDAR-Lite 3 Laser Rangefinder

The LIDAR-Lite 3 Laser Rangefinder by Garmin is an essential, powerful, scalable and economical laser-based measurement solution supporting a wide variety of applications (ex. drones, general robotics, industrial sensing and more). Measures distance, velocity and signal strength of cooperative and non-cooperative targets at distances from zero to more than 40 meters. Offering the highest performance available in a single beam ranging sensor in its class.

LIDAR-Lite 3 Laser Rangefinder

Now $110.99 – Was $149.59 (25.805% off)

Quirkbot Robot Kit

The Quirkbot Robot Kit is a little character you can program and construct into different shapes and forms. Connect Strawbees, motors, LEDs, and sensors to make your own creatures! It’s a fun and easy way to the inspiring world of physical programming, electronics and mechanics for kids, grown-ups and educators.

Quirkbot Robot Kit

Now $94.99 – Was $119 (20.18% off)

RPLIDAR A2 360° Laser Scanner

The RPLIDAR A2 360° Laser Scanner is the next generation of 360 degrees 2D lidars. The RPLIDAR A2 adopts low-cost laser triangulation measurement system developed by SLAMTEC, and therefore has excellent performance in all kinds of indoor environments and outdoor environments without direct sunlight exposure.

RPLIDAR A2 360° Laser Scanner

Now $379 – Was $449 (16% off)

Squishy Circuits Lite Kit

The Squishy Circuits Lite Kit uses conductive and insulating play dough to teach the basics of electrical circuits in a fun, hands-on way. There’s no need for breadboards or soldering – just add batteries and our pre-made doughs (or make your own dough with the provided recipes). Let your creations come to life as you light them up with LEDs, make noises with buzzers, and spin with the motor.This is the most basic kit and includes everything that you need to make your first Squishy Circuits light up quickly and easily.

Squishy Circuits Lite Kit

Now $8.5 – Was $10 (15% off)

*conditions apply – please see our website for minimum order value for free shipping, and requirements for same-day shipping