We recommend external pre-certified RF devices for performance, cost, and compliance reasons.
Affordable plug and play dongles are available:
- GenBasic WiFi 4 USB 2.0 Nano Dongle for Linux Amazon
- GenBasic WiFi 5 Bluetooth USB 2.0 Combo Dongle for Linux Amazon
These were specifically designed to consume 0.5A or less so that they not create power issues with proper power supplies. If these devices disconnect from the USB bus, it’s indicative of insufficient power.
These dongles are also available from distributors in bulk at discount.