PowerOnState Configuration - RTurala/Sonoff-Tasmota GitHub Wiki

PowerOnState | | Show current relay power on state
PowerOnState | 0 | off | Keep relay(s) off after power on
PowerOnState | 1 | on | Turn relay(s) on after power on
PowerOnState | 2 | toggle | Toggle relay(s) on from last saved
PowerOnState | 3 | (default) Turn relay(s) on as last saved
PowerOnState | 4 | Turn relay(s) on and disable further relay control
PowerOnState | 5 | After a pulsetime period, Turn relay(s) on and disable further relay control

by DEFAULT the relay(s) will power on with the last saved state on a reboot/restart.

If MQTT is defined and PowerRetain is used the last state will be stored permanently in MQTT database.

PowerRetain | | Show current MQTT power retain state
PowerRetain | 0 | off | (default) Disable MQTT power retain on status update
PowerRetain | 1 | on | Enable MQTT power retain on status update

The stored MQTT message will always override the PowerOnState!!!

To check, if there is a value set for the power switch you can use mosquitto_sub

mosquitto_sub -p 1883 -u <username> -P <password> -t cmnd/+/power

If there are retained messages there should be an output similar to: (the "r1" shows that this message was retained)

Client mosqsub/3795-raspberryp received PUBLISH (d0, q0, r1, m0, 'cmnd/setting/ESP_004554/power', ... (1 bytes))
on
Client mosqsub/3795-raspberryp received PUBLISH (d0, q0, r1, m0, 'cmnd/setting/ESP_267688/power', ... (1 bytes))
off
Client mosqsub/3795-raspberryp received PUBLISH (d0, q0, r1, m0, 'cmnd/setting/ESP_675667/power', ... (1 bytes))
on

cmnd/+/power could also something different depending what you have defined as IN folder for commands. "power" needs to be replaced by power1,power2 and so on, if you have more relays or use "cmnd/#". Be aware that MQTT does **NOT SUPPORT **wildcards "cmnd/+/Power?"

#define SUB_PREFIX "cmnd"

Now you can see, if there are messages stored that Power ON/OFF and need to be deleted. To delete use:

mosquitto_pub -p 1883 -u <username> -P <password> -d -n -r -t cmnd/ESP_0C220C/power

The -n sends an empty key and the -r store this change permanently