I've created a list of other electronics communities on lemmy.

Feel free to create PR's against it or make suggestions here if there are others that we should include. I've also placed them in the sidebar.

Let me know if I've missed anything.

This list on Github

General Electronics

• DIY Electronics
• Electronics
• Ask Electronics

Embedded (generic)

• Embedded
• Embedded Programming
• Arduino
• Arduino Projects
• FPGA

Embedded (hardware specific)

• Raspberry Pi
• Raspberry Pi Pico/RP2040
• stm32
• esp32

Radio Frequency / RF

• RTL-SDR