Elsewhere I’ve just started to write about Zigbee – the low-energy RF communication alternative to WiFi and 433Mhz radio control of various smart devices.
To make a start, I’m using my normal Raspberry Pi arrangement with the addition of a small pre-programmed dongle from Itead which works with the widely available zigbee2mqtt software on the RPi.
Initially I used the Node-Red MQTT nodes directly and debug nodes for monitoring. I’m heading towards using node-red-contrib-zigbee2mqtt – but before I get into that, here’s an issue that’s bugging me right now…
Given a simple setup with the Sonoff pre-programmed Zigbee dongle, a Sonoff Zigbee DIY Smart Socket and a ZemiSmart Zigbee Smart Socket, I succeeded in quickly using Node-Red on the Raspberry Pi to control both sockets and two connected Zemismart E27 RGBW lamps as well as monitoring the state change of the lamps and both sockets as Node-Red turned them on and off.
Where I’m currently having issues is seeing, in Node-Red, the status changes when turning the Zemismart socket on and off manually or physically cycling mains power to it. The Sonoff status information works just fine, but not, it seems the Zemismart status nor does power cycling of the Zemismart light units provide any status information back to MQTT.
Note the devices by number information in the image below – not yet quite as friendly as Tasmota WiFi devices. You see the Sonoff socket followed by the Zemismart socket. The bottom two devices are lights and of course you can create friendly names for these devices.
Update June 19, 2020
After a reasonable start, things went downhill rapidly with those Zemismart E27 Zigbee lamps. To move them from one repeater to another setup, you are supposed to turn them off and on 5 times in a row – at which point they start flashing – except when they don’t. I’ve just wasted 2 hours (one light at a time) flicking them off then on – I’ve tried all combinations – 5 times, quickly, slowly – makes no difference – no flashing, no change whatsoever. I now have 2 expensive bright blue lights.
My Sonoff and Zemismart Zigbee smart sockets are however working fine along with my Ikea £8 repeater.