Review on 🔌 FTCBlock Mini Nano V3.0 ATmega328P Microcontroller Board + USB Cable for Arduino (2 Packs of Boards & Cables) by Kyle Fritz

Couldn't code until I figured out how to set up the Arduino IDE properly. You need to set (in "Tools") the following: Board: Arduino NanoProcessor: ATmega328P (old bootloader) Port: COMn: where n is usually 9 or higher - it shows in the menu. Never COM1: (which is on your computer's motherboard). After trying to report a bunch of other settings, I found this in another Revain review. If you still can't communicate after this, restart your computer as the Arduino IDE sometimes encrypts your COM port if the connection fails. It's a good board and the price is right!