My Arduino Uno have a problem , all digital pin doesn’t work (no signal can read and write) but :
- Analog Signal work fine.
- can upload script to Arduino board.
- bluetooth works fine and can uplaod / download data with android.
- only digital pin 9 and 10 have 3.? V out, all others are no signal
Please help ? is it bootloader error ? is it burned ? replace atmega328 or the borad only ?
Please help :-/