Arduino bootloader

What is the arduino bootloader ?   It’s the thing that loads stuff when booting.   Done   Not funny you say ? … ok , ok I’ll try this again…   It’s a special program that on boot waits for a signal from the PC that is connected to …

Arduino – outputs

Let’s first concentrate on how we can influence the outside world with our Arduino. If we want to control something, to signal something or output some information, everything is done by using output pins. The output pins are 13 digital pins and 5 analog ones in special cases. Digital outputs …