ZBT-1P
ZBT-1P is aimed at Home Assistant users: USB powered, aligned with the official ZBT-1 form. The chip is Silicon Labs EFR32MG21; USB serial is CP2102N. It runs official SkyConnect firmware and works with ZHA and Zigbee2MQTT. Reflash with the USB dongle model flasher.
Firmware
| Firmware | ZBT-1P |
|---|---|
| Zigbee coordinator | Yes |
| Thread | Yes |
| MultiPAN (Zigbee + Thread together) | Yes |
Matter over Thread uses the Thread image.
Silicon
| Item | ZBT-1P |
|---|---|
| Chip | Silicon Labs EFR32MG21 |
| USB serial | CP2102N |
Same MG21 chip as ZBM-MG21; the differences are the enclosure, firmware source, and USB serial chip. Windows and macOS need the CP210x driver.
| Model | Chip | USB serial |
|---|---|---|
| ZBT-1P | EFR32MG21 | CP2102N |
| ZBM-MG21 | EFR32MG21 | CH9102 |
| ZBM-MG24 | EFR32MG24 | CP210x |
Which to pick
- ZBT-1P: match the official ZBT-1 shape and SkyConnect firmware
- ZBM-MG21: also MG21, Inswift firmware, USB is CH9102
- ZBM-MG24: more memory, or MultiPAN on Inswift firmware
Many devices or thick walls, or you want the radio in the center of the home: prefer an ETH gateway. Still use a USB extension to cut 2.4 GHz noise.