USB to Serial Converter with CH340
USB to Serial Converter Module
Ideal for re-programming Picon Zero
This module has the correct pinout to push directly into the 6 programming holes on the Picon Zero.
It also comes with 5 dupont jumpers (female to female) so you can connect it to your own project.
This unit has a switch to enable 3.3V or 5V output - ensure you have it set correctly before powering.