Issues an alarm, if window is open for more than 5 minutes. Arduino sketch for ATtiny85. Battery operated (6 microAmpere).
GPL-3.0 License
Minimal bit-bang send serial 38400/115200 baud for 1MHz or 115200/230400 baud for 8 or 16MHz ATti...
ESPHome support for cheap WiFi PIR sensors
Battery management system for your FPV goggles.
usb input adapter for sun workstations
Simple DSO software based on standard Arduino boards, a HC-05 and the BlueDisplay library.
The ultimate battery tester with ESR measurement and discharge graph. Based on an Arduino Nano an...
This is to connect a LED-Lamp (with up to 16 channels and 4096 steps resolution per channel) to ...
ESP32 based CO2 monitor using a SenseAir S8 sensor. Some additional features like graphs, touch s...