Line 8 is the starting of the cycle that is going to perform while Arduino is powered on. Line 10 is used for reading analog values from photoresistor and storing the values to a variable called “int ...

[Nick Touran] wanted to make two Raspberry Pi’s communicate wirelessly. There are lots of options, but [Nick] used a LASER and a photoresistor, along with Morse code. If you don’t find … ...