An LED You Can Blow Out Like a Candle!
LEDs are designed to emit light, but they also make surprisingly capable sensors. Using only an Arduino UNO, an LED and a resistor, we will build a hot LED anemometer that measures wind speed, and turns off the LED for 2 seconds when it detects you are blowing on it. You can use this to […]
An LED You Can Blow Out Like a Candle! Continue Reading