Initially I had some programming problems, but the problem turned out to be the "modemmanager" package in Linux, which is blocking the USB serial connection. Removing it allowed it to be programmed with the "Leonardo" setting in the Arduino IDE.
LAFVIN Super Starter Kit for Arduino R3 Mega2560 Mega328 Nano with Detailed Tutorial - Compatible with Arduino IDE
11 Review
GeeekPi Raspberry Pi Cluster Case with Cooling Fan and Heatsink for Pi 4 Model B, 3 Model B+ & 3/2 Model B
11 Review
Vilros Raspberry Pi 4 4GB Complete Starter Kit - Black Fan-Cooled Aluminum Case for Heavy-Duty Performance
12 Review
๐ MCIGICM 2 Channel DC 5V Relay Module: Optocoupler Low Level Trigger Expansion Board for Arduino UNO R3, DSP, ARM, PIC, AVR, STM32, Raspberry Pi
11 Review
uxcell 3.5" HDD Screw Black 200pcs for Computer PC Case - Flat Phillips Head - 6#-32 - Hard Drive Fasteners
10 Review
Comprehensive 500pcs Laptop Screw Kit Set for ๐ฉ IBM HP Dell Lenovo Samsung Sony Toshiba Gateway Acer
12 Review
M.2 Screw Kit: Easy Mounting for NVMe SSDs on ASUS Motherboards
19 Review
Glarks 660 Pieces Phillips Assortment Motherboard
10 Review