“USB TTL is developed with the advanced CP2102 and CH340 chipsets, which are 2.0 compliant and come with standard USB type A male, Type C, Micro USB, and TTL 6pin connectors. 3.3V, VCC, RTS, TXD ...

The Arduino Nano and Raspberry Pi Pico support different input voltages, so they also use different power sources. However, they can both be powered with a 5V supply via their onboard USB ports.

The 32U4 in arduino-land can sometimes be a bit problematic with regards to firmware updating and reset issues, “brickable” as it were. The Nano footprint is quite nice (similar in size to a ...