Simple reflow oven controller just with button, buzzer and LED, no LCD
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Arduino Uno: Control relay and valve on schedule (with LCD, RTC, eeprom)
Battery management system for your FPV goggles.
Custom made TKL RGB HotSwap keyboard.
Control AC unit remotely from web application
Animated Rainbow LED Lamp w/ WS2812b LED stripes, Arduino and 1 Button.
A programmable darkroom enlarger linear and geometric (f/stop) timer built upon an Arduino microc...
ESP32 fan controller with temperature sensor and MQTT