The ATMega4809 features a higher clock speed of 20 MHz compared to 16 MHz for the previous model ... Arduino has also swapped out the Nano's mini-USB connector in favor of micro-USB. While USB-C ...

Hooking it up to the Psion’s data bus was a simple matter of wiring up the eight data lines to the Nano’s ... designed and 3D printed a neat enclosure for the Arduino-USB interface, which ...