I am about to make a simple automatic plant grow system, based on an ESP8266. Luckily I got a #Chirp from Catnip Electronics https://wemakethings.net/chirp/ at #37c3 which covers pretty much all of the parameters, I want to measure ^.^
Thanks again to @miceuz who gave it to me for free! :)
Collecting all my notes on Direct digital synthesis for PWM, R2R or I2C DAC output on an Arduino into a single post.
The example is a constant, fixed frequency additive synthesis output, adjusted by some pots, which can be used for messing around with the audio output methods and settings.
I wanted a few #Arduino Uno boards to try some gas sensors. Although I had several Arduino boards somewhere in the lab, I couldn't locate them for a while; I have been so messy with my lab management.
Perhaps, this is a good time to consider adapting some proper inventory management strategy. #academia#academicchatter
A cool #RetroGaming project that I hacked together a few years ago was something that strapped to the front of my G-Con2 and let me play #PS2#LightGun games with the original hardware on a modern TV.
It uses a Wii style camera and beacon to work out screen position. Then, by stripping the sync trigger from the composite video signal, times an LED to flash at the gun's light sensor at the moment when a hypothetical CRT beam would scan through that point. 1/3 🧵 #Arduino https://hundstrasse.com/zapstrasse-g-con-2-light-gun-on-a-modern-tv/
Oh, I really want to build one of these! If I put a Pi4 or Pi5 into it and ran a local copy of #NeonAI or #OVOS and maybe controlled the servos directly from the Pi instead of running it through an extra #Arduino, it would be a lot more capable and compact. Or, I could run it through a Pi0 with a #HomeAssistant assistant setup to offload the hardware requirements. So much potential!! Maybe when I'm done with my class and have more time to tinker around?
@unfa man, i'm so with you on this. no, i don't care about portable lights, but i desperately want to learn practical #electronics (got a bachelor's in electronics from those soviet times, useless as i had never touched a live mcu during studies!) and thus try to play with every #arduino howto or tutorial i can find & understand… but there's a huge gap between simple lessons (lady ada) and any «real life» application :-/
I figured that another button would be needed for some games I want to play, and upgraded my custom spinner controller. And why not add a jack for an optional foot pedal?
I can't play the piano to save my life, so the M-Audio pedal I had lying around had been unused forever. It's just a push-button inside.
I have no idea how such a shitty product can exist. Same price buys you a Chromebook; there are plenty of software libre distraction-free writing apps out there (try opening a terminal and typing "vim"?).
Or you could chicken out and buy a Kindle Fire Max 11 with keyboard case for the same price.
Both of these let you type for more than a day on a charge: the only benefit of the freewrite alpha is an 80 hour battery, which is pointless with USB-C charging everywhere.