Habr3d ago

CO2 станция на ESP32-C3 + SCD41 + GC6A01

История создания открытой настольной CO2-станции на базе микроконтроллера ESP32-C3, круглого дисплея GC9A01 и честного оптического NDIR-сенсора углекислого газа Sensirion SCD41. Большинство бюджетных мониторов воздуха используют дешевые eCO2-датчики, которые лишь угадывают уровень углекислого газа по качеству летучих веществ. Этот проект — полностью открытая альтернатива. Прошивка написана на чистом фреймворке ESP-IDF, использована моя собственная графическая библиотека.

https://habr.com/ru/articles/1043390/

#esp32c3 #esp32 #scd41 #sensirion #scd40 #gc9a01 #mqtt #home_assistant #co2_монитор #co2

CO2 станция на ESP32-C3 + SCD41 + GC6A01

Введение На работе появились датчики CO2 и строгое указание: "Когда вот тут красное, проветривайте помещение". Никогда раньше особо не задумывался, но стало интересно, кто же не любит свежий воздух....

Хабр
Hackaday [Unofficial]May 27

A Clock Inspired by Failed Cognitive Tests

https://fed.brid.gy/r/https://hackaday.com/2026/05/27/a-clock-inspired-by-failed-cognitive-tests/

13May 27
A Clock Inspired by Failed Cognitive Tests https://hackaday.com/2026/05/27/a-clock-inspired-by-failed-cognitive-tests/
#Clockhacks #Clockdrawingtest #Drawing #DS3231RTC #ESP32 #Esp32C3
A Clock Inspired By Failed Cognitive Tests

One simple screening tool for cognitive impairment is the clock-drawing test (CDT): the patient is provided with a printed circle and asked to draw a clock face with the hands pointing to a certain…

Hackaday
Simon WaltersMay 16
Just putting this out there but I'm now using #ESP32S3 minis instead of #ESP32C3 minis with @microblocks as I find they much more reliably connect to my home WiFi. (Yes I know about the new C3 antenna variants but decided a just want a compact simple thing that just works without having to worry about whether it will or not)
Hackaday [Unofficial]May 14

ChargeCap Helps Your Batteries Last Longer By Limiting Charge Level

https://fed.brid.gy/r/https://hackaday.com/2026/05/14/chargecap-helps-your-batteries-last-longer-by-limiting-charge-level/

13May 14
ChargeCap Helps Your Batteries Last Longer By Limiting Charge Level https://hackaday.com/2026/05/14/chargecap-helps-your-batteries-last-longer-by-limiting-charge-level/
#BatteryHacks #Batteries #Esp32C3 #Lithiumion #Recharging #Usb
ChargeCap Helps Your Batteries Last Longer By Limiting Charge Level

If you want to maximize the life of your lithium-ion batteries, proper storage voltage is critical. That is, don’t store them empty, and don’t store them completely full either. “…

Hackaday
Hackaday [Unofficial]May 11

This Credit Card Computer Follows All Dimensions

https://fed.brid.gy/r/https://hackaday.com/2026/05/11/this-credit-card-computer-follows-all-dimensions/

This Credit Card Computer Follows All Dimensions

A computer the size of a credit card is nothing new. There have been many single-board computers following the familiar dimensions. [Krauseler]’s credit card computer is different, though. It…

Hackaday
13May 11
This Credit Card Computer Follows All Dimensions https://hackaday.com/2026/05/11/this-credit-card-computer-follows-all-dimensions/
#Computerhacks #Creditcard #Esp32C3 #Thincircuit
This Credit Card Computer Follows All Dimensions

A computer the size of a credit card is nothing new. There have been many single-board computers following the familiar dimensions. [Krauseler]’s credit card computer is different, though. It…

Hackaday
Show threadSimon WaltersMay 9
Found the issue - I'd manually set a variable value but in the meantime I'd disconnected and reconnected my #ESP32C3 so the variable no longer had the value I was expecting @microblocks
Hackaday [Unofficial]Apr 17

Wearable Circuit Sculpture Is One Smart Bracelet

https://fed.brid.gy/r/https://hackaday.com/2026/04/17/wearable-circuit-sculpture-is-one-smart-bracelet/

Wearable Circuit Sculpture Is One Smart Bracelet

Well, this might just be a Hackaday first. Certainly not the circuit sculpture part, nor the wearable aspect, but the glorious combination of the two. Behold [CMoz]’s Fashionably on Task: a S…

Hackaday