I am running Openhabian (OpenHAB 2.4.0-1) on a Raspberry Pi 3b with a Aeotec Z-Stick Gen5 (purchased 5/2018). On a regular basis (i.e., 1-3 times per week), the ZWave stick stops sending commands. The buttons in BasicUI change state, and I can see commands running in the OH log, but the ZWave devices do not respond. The ZWave Serial Controller thing is online in PaperUI/HABmin and no ZWave nodes are red in HABMin. If I change the serial port from /dev/ttyACMO (the right one) to /dev/ttyAMA0 (the wrong one), and then back to /dev/ttyACMO (the right one), the ZWave controller starts sending commands again. Not only does it start sending commands, but it sends the recent commands that failed to run. I guess the commands are queued somewhere. For example, a light that I tried switching twice in BasicUI before switching the serial ports will flash on and off several times.
I’ve switched out both the ZWave sticks and the Pis – I have two sticks and a pile of Pis. And the Openhabian installs are always fresh installs. The same thing happens regardless of the stick-Pi combo. The only software I loaded on the Pi with Openhabian is htop and curl.
I think that I updated the ZWave stick firmware a few months ago, but not sure. Yes I have done soft resets and actually removed/reinserted the stick.
I’ve search the OH community for similar ZWave issues. And I’ve searched Pi forums to explore whether the serial port is sleeping. I haven’t seen other folks folks with this problem, but I certainly could have missed it.
Log file uploaded. Log ZWave debug.log (891.2 KB)
Does anyone have suggestions for troubleshooting or fixes?