Now is the time to see the sample code (Arduino Uno/Nano Sketch)… [code] #define ALERT_LED 13 //SIGNAL LED . void setup() { TCCR1A = 0b10110010; TCCR1B = 0b00011001; ... Using pulsed light enables the ...

After uploading the code the Piezo will start making short beeps. On bright light the Piezo will only beep and on dark light it will be short. Some ideas for this experiment: Alarm for Lights in the ...

The idea behind the color sensor is to light up red, green, and blue LEDs and see how much light is reflected back from the object with a luminosity sensor. [Rick] chose an Arduino to do all the ...