#hardware-engineering

[electricalinsightsdaily]

RN42 Bluetooth Module: A Comprehensive Guide

The RN42 Bluetooth module was developed by Microchip Technology. It’s designed to provide Bluetooth connectivity to devices and is commonly used in various applications, including wireless communication between devices.

Features Of RN42 Bluetooth Module

The RN42 Bluetooth module comes with several key features that make it suitable for various wireless communication applications. Here are the key features of the RN42 module:

Bluetooth Version:

The RN42 module is based on Bluetooth version 2.1 + EDR (Enhanced Data Rate).

Profiles:

Supports a range of Bluetooth profiles including Serial Port Profile (SPP), Human Interface Device (HID), Audio Gateway (AG), and others. The availability of profiles makes it versatile for different types of applications.

Frequency Range:

Operates in the 2.4 GHz ISM (Industrial, Scientific, and Medical) band, the standard frequency range for Bluetooth communication.

Data Rates:

Offers data rates of up to 3 Mbps, providing a balance between speed and power consumption.

Power Supply Voltage:

Operates with a power supply voltage in the range of 3.3V to 6V, making it compatible with a variety of power sources.

Low Power Consumption:

Designed for low power consumption, making it suitable for battery-powered applications and energy-efficient designs.

Antenna Options:

Provides options for both internal and external antennas, offering flexibility in design based on the specific requirements of the application.

Interface:

Utilizes a UART (Universal Asynchronous Receiver-Transmitter) interface for serial communication, facilitating easy integration with microcontrollers and other embedded systems.

Security Features:

Implements authentication and encryption mechanisms to ensure secure wireless communication.

Read More: RN42 Bluetooth Module

[paracosmicka]

okay idea

like does this make sense

idk my brain was bored even tho i wanted to keep drawing my sonadow fankids this weekend but i don’t think that’s gonna happen

ok but fr tho my mindset changes from “pure fluff sonadow so cute soft” to “i need to make a doohickey right now” like phases of the moon it’s fucking crazy and i don’t like it actually

[nasa]

The Nancy Grace Roman Space Telescope’s flight harness is transferred from the mock-up structure to the spacecraft flight structure.

Your Body is Wired Like a NASA Space Telescope. Sort Of.

If our Nancy Grace Roman Space Telescope were alive, its nervous system would be the intricate wiring, or “harness,” that helps different parts of the observatory communicate with one another. Just like the human body sends information through nerves to function, Roman will send commands through this special harness to help achieve its mission: answering longstanding questions about dark energy, dark matter, and exoplanets, among other mind-bending cosmic queries. 

Roman’s harness weighs around 1,000 pounds and is made of about 32,000 wires and 900 connectors. If those parts were laid out end-to-end, they would be 45 miles long from start to finish. Coincidentally, the human body’s nerves would span the same distance if lined up. That’s far enough to reach nearly three-fourths of the way to space, twice as far as a marathon, or eight times taller than Mount Everest! 

An aerial view of the harness technicians working to secure Roman’s harness to the spacecraft flight structure.

Over a span of two years, 11 technicians spent time at the workbench and perched on ladders, cutting wire to length, carefully cleaning each component, and repeatedly connecting everything together.  

Space is usually freezing cold, but spacecraft that are in direct sunlight can get incredibly hot. Roman’s harness went through the Space Environment Simulator – a massive thermal vacuum chamber – to expose the components to the temperatures they’ll experience in space. Technicians “baked” vapors out of the harness to make sure they won’t cause problems later in orbit.  

Technicians work to secure Roman’s harness to the interior of the spacecraft flight structure. They are standing in the portion of the spacecraft bus where the propellant tanks will be mounted.  

The next step is for engineers to weave the harness through the flight structure in Goddard’s big clean room, a space almost perfectly free of dust and other particles. This process will be ongoing until most of the spacecraft components are assembled. The Roman Space Telescope is set to launch by May 2027. 

Learn more about the exciting science this mission will investigate on X and Facebook. 

Make sure to follow us on Tumblr for your regular dose of space! 

[computer-nerd-girl]

[gordonfreemanspussy]

@scienceteamtober day 4: sweet voice

omg who is he singing for.....

[adafruit]

OPT4048 - a "tri-stimulus" light sensor 🔴🟢🔵

We were chatting in the forums with someone when the OPT4048 (https://www.digikey.com/en/products/detail/texas-instruments/OPT4048DTSR/21298553) came up. It's an interesting light sensor that does color sensing but with diodes matched to the CIE XYZ color space. This would make them particularly good for color-light tuning. We made a cute breakout for this board. Fun fact: it's 3.3V power but 5V logic friendly.

[wojakgallery]

Title/Name: The 8-Bit Guy 6502 Soyjak Bio: David Murray, born 1975, commonly known as The 8-Bit Guy, is an American retrocomputing enthusiast and video game developer who runs a YouTube channel under the same name. Country: USA Wojak Series: Soyjak (Variant) Image submission by:  me-am-nacho on Tumblr Image art by: NellyLorey on Reddit Main Tag: Soyjak Wojak

[parisoonic]

i really wish we got the tf2 tv show because i think, about your talk about how pyro ends up being a foil to the other characters, pyro is such a wildcard of a character that if you need someone for an episode to complete a dynamic it's pyro. he's designated driver. he's the mcdonalds employee. he's scout's ma. she's helping miss p dismember bodies. it's coming in through the dog door

your ask got me thinking about how i'd use pyro in a show and IDK if anyone else has seen Solar Opposites but how they split the Pupa's screentime between A + B plots in the first/second season would be spot on the money for me. Pyro could be there, in the A plot, in small ways (like you said, at the back of the bus or en rotue to the episodes mission) but then gets sucked into a 'mundane' B plot for some tonal levity within the episode. Pyro's gotta run that FTSE 500 company! They've gotta seduce the Ballicorn comic writer in order to read the never-published final issue! They've gotta earn an Astrophysics PHD in order to steal their Professor's Pokemon topped pen....that sort of thing. And then occassionaly they can show up with the deus-ex-mechina for the episode with the rest of the team being none the wiser (other than vaguely baffled as their flamethrower could've REALLY come in handy fighting those haunted scarecrows).

[retrocgads]

UK 1982

[netscapenavigator-official]

I just read that Godot has an "unofficial" and "experimental" port for PowerPC Linux??? And, like, I'm always happy when modern software supports legacy hardware... but.... PowerPC?? On Linux???? Like, are there really enough PPC Linux devices out there to warrant support of a modern game engine??

[guard-en]

"...This fucking thing better not choke up on me again."

[juh-wasnt-deactivated19691231]

[computer-nerd-girl]

[teknewsfeed]

Interactive floor concept!

[adafruit]

Solenoids go clicky-clacky 🔩🔊🤖

We're testing out an I2C-to-solenoid driver today. It uses an MCP23017 expander. We like this particular chip for this usage because it has push-pull outputs, making it ideal for driving our N-channel FETs and flyback diodes. The A port connects to the 8 drivers, while the B port remains available for other GPIO purposes. For this demo, whenever we 'touch' a pin on port B to ground, the corresponding solenoid triggers provide an easy way to check speed and power usage.

[gmos]

how come some computer people get so mean when you ask questions specifically worded to indicate that you're a beginner and need the simplest answer they can give