you have a good set of starting point for the Arduino understanding. I suggest also some posts I have published in the recent past on Electroschematics, with documentation, sources, schemes etc using the I2C (two wire protocol) to expand the output pins with a shift register, control a display etc.
you have a good set of starting point for the Arduino understanding. I suggest also some posts I have published in the recent past on Electroschematics, with documentation, sources, schemes etc using the I2C (two wire protocol) to expand the output pins with a shift register, control a display etc.
