#testing electronics

[testing-electronics]

New instruments 2024

[mothcpu]

work doodles

[adafruit]

A4988 breakout prototype testing ⚙️🔧

We got our Allegro A4988 stepper driver breakout PCBs back and are ready to test them. First, we verified that STEP and DIR worked (yes!) and that the LEDs lit (yes, but we need to tweak the resistors to make the brightness even). Then we tried all of the stepper-settings, you can select 1, 4, 8, or 16-microsteps. All the sleep/reset/enable pins work. Finally, we checked the current limiting functionality with a potentiometer that can be twisted to select up to 2A current per coil. This directly affects the torque, so it's easy to test by verifying that we can stall the motor with hands or vise-grips. We'll order these with 2oz copper and get them into production next!

[avi-on-jumblr]

listen. listen. i don’t believe in DNIs. i don’t believe in them. but.

DNI IF YOU DIDN’T LIKE YENTL.

[zombearzilla]

New album, new pedalboard.

[rouge-fauna]

Am I the only one wondering why someone would use ChatGPT as a calculator instead of using an actual calculator for a simple math problem. Like do you need to borrow one of my 8 calculators? Or maybe just use the one on Google or on the phone in your pocket. Like are we really so far gone that not only can we not do simple math in our head, but we can’t even push some buttons and need to ask ai instead…

[explainslowly]

not to be rapidly approaching middle age but I did subscribe to the big local consummer goods testing magazine again

[sugardaddyemmrich]

She still doesn’t know what ‘Harding in Hightown’ meant and now she’s afraid to ask …

[deathofacupid]

i fear the only way i'll ever be able to lock in irl is by deleting my tumblr account

[shisasan]

Incubation Song (Album Version) by Empathy Test

Just imprison me and shower me with light Choke me, envelope me inside I know you see through each disguise Swallow me, I cannot cope with life

[adafruit]

Metro RP2350 is wrappin' up testing ✨🐢

This week we got our Metro RP2350 boards

https://blog.adafruit.com/2024/11/11/metro-rp2350-now-with-bigger-better-rp2350b/

back and after fixing the pin direction and rerouting

the whole thing, it came up and pretty much works perfectly! Just one component needed a swap - we were able to test all GPIO, analog inputs, MicroSD slot, PSRAM, LEDs & NeoPixel, user button, I2C/SPI/UART, aaand power supplies. The 5V supply is great, we got a nice clean 5V out at 2A+ from 12V DC in. The last thing to check is the HSTX port, which gives us DVI access, and it works, thanks to this festive turtle demo!

We're aiming to get this into the shop before the end of the year, wouldn't that be smashing?

[queer-reader-07]

i crashed out about protons in my friend's dms earlier and tbh i can't believe that was only 12 hours ago i feel like i've been on a whole hero's journey since then

[cryptid-on-a-string]

i honestly feel a little ashamed to be such a big fan of the mad scientist aesthetic and those types of characters, when science has always been my worst subject in all my years of highschool. Im in chemistry class at the moment, barely pulling a D+ and not understanding any of the current material, looking at mad science stimboards on tumblr