WThermostatBeca
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fashberg
Hangs up when switching off from HA
Hi,
i'm a bloody beginner in using a thermostat with Home Assistant. But i bought a BHT-002 and flashed successful to firmware WThermostat 1.18-fas.
After that i set up an Mosquitto broker on my raspberry PI and integrated that with the MQTT integration into Home Assistant. Everything works... set temperature, go to manual or auto mode - fine. But if i switch the thermostate OFF it shows in HA a temperature of -3 degrees and then it hangs - no more control from HA possible. The device display has lighten up but doesn't show anything, no action if i try to push one of the buttons. In Browser i can access the ESP page and reinit the device - but doesn't help. Same if i access the network config page and press "save config and reboot". If i view the info-screen, i can see the problem: MCU-Initialized: No
Is just my new hardware hanging in this case?
Let me also tell, that i have bought a new BHT-002 with the tuya-controller WB3S. I replaced this tuya chip and changed to an ESP8266 (have seen that here)
Annex: I ordered a second BHT-002 from Aliexpress. It came with the correct controller, so i just flashed it with the same firmware (see above). This device is working correctly and does not show the hanging-fault like described above! Very interesting for me...!
Any idea what could be the problem?
Hi,
I have the same experience as FreakyPady. Screen freezes/MCU seems to disconnect. Only way to get them running again is to reflash with 1.25beta. BHT-002-GBLW with ESP-12F 1.20-fas en 1.21-fas. Luckily i could web-reflash it with the 1.25beta that it was forked from and after i cycled the power the screen came to life again. Will do some additional testing tonight. I have a pcb with 002-cms-wifi-and-modbus-20210528-V1 written on it.
I did some thinkering. And it seems that i can control the thermostat physically and do anything a like with it without it "crashing" The funny thing is that i just upgraded to the 1.22-fas version. And where it usually keeps on -3 until i remove power from the thermostat by using the circuitbreaker it now displays the correct temp values in HA but the display is "off" but i can't switch it on. What would be the best order in supplying debugging information? tnx in advance.
Ok. Using operation auto or heat within HA doesn't seem hang up the thermostat (I can still manipulate the temp setting and i can feel the IR heating switch on). Choosing the off option(choices are auto,heat,off) within the operation setting instanly kills it. The power button within HA also kills it.
Maybe theres a difference in the device that comes with the "WB3S"? I had these problems just with the one i got delivered with the WB3S! Maybe they changed the MCU software also, not only the WiFi-Controller?
The last weeks, I ordered additional devices via AliExpress. They had all the "good" TYWE3S chip. I flashed all of them with v1.18 and they are all working without any problems!
At this point: Thanks to fashberg for this great project and work! For me it's very usefull!