The 32-pin versions feature extra VCC and GND pins + ADC7 and ADC6 (Pins 19 and 22), which can be used as two additional Analog Input pins (for example, they are used as line sensor inputs on the AREXX AAR-04).
Context as to why I'd like to see those:
I'm using the above mentioned Mcu in school and, with online school going on, would like to create a digital representation of it. The only thing missing are those two analog input pins.
I've tried to use the Arduino Mega (ATmega2560) to circumvent this, but that does not support Pin Change Interrupts on every pin, a feature I also need.
Context as to why I'd like to see those:
I'm using the above mentioned Mcu in school and, with online school going on, would like to create a digital representation of it. The only thing missing are those two analog input pins.
I've tried to use the Arduino Mega (ATmega2560) to circumvent this, but that does not support Pin Change Interrupts on every pin, a feature I also need.