Coming to Arduino (Uno), the PWM frequency at Pin 9 is close to 500 Hz, and with fc = 500 Hz, the period is 1/fc = ~2 ms. Note that the statement “analogWrite( PWM_ pin, level);” sets the PWM _pin to ...

That’s kinda mean. The Arduino already has a socket and a board. Just the ATMega328 is 5,65 euro. For 21 IO pins, that’s 0.26 euro per IO. The MCP23S08 is 1,32 euro, so 0.17 euro per IO.

It transpires that folk have been busy writing ‘cores’ – the name for code that adapts Arduino code to run on different hardware – for several other bare chips, and some have 20 pins – plenty. Have ...

12 thoughts on “ Arduino CLI For I/O Pin Testing ” rpavlik says: March 21, 2021 at 2:02 pm I am eagerly awaiting my Glasgow for high powered interfacing. I have ...