Error Sending switch command

[sundberg84]

Hi! Is it a standard MySensors relay you got?
When i reboot Domoticz for some reason i need to present the relays again or i get this message.

[NBM]

@sundberg84 Yes standard relay. Present=reset (turn on and off.)?

[sundberg84]

Yea 😊 reset.

[NBM]

@sundberg84 No change. Still samme massage.

[sundberg84]

@NBM What Domoticz version do you run? The lastes beta feel more stable than the stable version... or atleast mysensors was pretty new in that version so it might be a good idea to upgrade.

[NBM]

@sundberg84 My version on domoticz and i have newst version on mysensor.

[sundberg84]

Ok sorry then im out of ideas - do you have any logs we can look at?

[NBM]

@sundberg84 Where du i find the logs on domoticz?

[sundberg84]

The log in Domoticz is by default quite little info, but Setup -> Log
But if you se anything in the gw when you trigger perhaps?

[NBM]

It shows everytime when im reset the sensor.

[sundberg84]

And when you switch it looks like this:

But what about the gateway?

[NBM]

Only this is showing when i switch the sensor.

Where do i find the log on gateway? GW log?

[sundberg84]

Yea, the serial log from your arduino - connect the gateway to your computer and open the serial monitor in the arduino IDE.
Another thing that you can try is to remove the device completley from domoticz, reset the node and add it again in Domoticz.

[hugo_pn]

@sundberg84 said:

Another thing that you can try is to remove the device completely from domoticz, reset the node and add it again in Domoticz.

Hi,

I'm having exactly the same problems as NBM.

I've tried doing as suggested by soundberg84.

It worked for one Node(relay) but another one does not seam to get up and working. Using the serial gateway it's working.

I find odd that (Motion Sensor) Nodes are always good and working. It seems to be something concerning relays. Because when the problem occurs it affects all the relays simultaneously.

My setup is a Raspberry Pi with a serial Gateway. I've had the same problem with the stable version and the beta version.

Another thing that I've noticed, if there are two Raspberry Pi with the same setup, and with out having the " Accept new Hardware Devices Allow for 5 Minutes " turned on, without resetting the a (Motion Sensor), Domoticz recognizes them on the devices panel.

Cheers
Hugo

[sundberg84]

@hugo_pn If you are using the default relay sketch you need ack back from the gw to switch it. Is the problem in Domoticz (Error sending switch command) or it doesnt get switched?

[hugo_pn]

Hi,

I am using the default relay sketch with button.
Ack back = acknowledge?

The message I receive from Domoticz is (Error sending switch command...)
when the message doesn't appear it switches.

[sundberg84]

In new Domoticz beta there is so you can enable/disable ack. Havent tried that myself but maybe you can try to change that.
Also what does your gw serial log say? Maybe we can find some clues there...

[jlaraujo]

I'm having the same issue, running Version: 2.3530 Build Hash: 9eef872

The sensor is number 1, and as soon as i try to change the state i get the "Error sending switch command, check device/hardware !"

This is what the domoticz is sending:
0;0;3;0;9;send: 0-0-1-1 s=35,c=1,t=2,pt=0,l=1,sg=0,st=fail:1

It seems that the problems is that the sensor does not reply correctly, how do i parse the message and reply?

Thanks

[fets]

@jlaraujo said:

0;0;3;0;9;send: 0-0-1-1 s=35,c=1,t=2,pt=0,l=1,sg=0,st=fail:

st=fail means that the message was not received. So this is a hardware issue

[macieiks]

Hello guys,

I had the same problem with st=fail, also with this output: "Error sending command, check your hardware/device (blablabla :D)". I can give you here my hints, maybe they will help you. First of all I am using the latest beta domoticz and beta mysensors library v1.6.

I am using two types of nrf24L01+ (with built-in antenna and external). For built-in antenna I am using #define RF24_PA_LEVEL_GW RF24_PA_HIGH in my sketches, BUT for external I need to lower the power because Arduino cannot provide enought current for it (even with attached capacitor): define RF24_PA_LEVEL_GW RF24_PA_LOW. I had this st=fail when I was using HIGH settings for nrf with external antenna, but now it is fixed. Also make sure that you have enough coverage.

I have Arduino Mega2560 installed 1 week ago with 16 channel 12v relay board together. I had the the same problem like you "Error sending command, check your hardware/device". Two days ago I realized that maybe there is a problem with my powering my gateway. I have RFXtrx433, APCups and Ethernet Arduino Uno gateway connected to Raspberry Pi USB. I connected my MySensors gateway separately via 5V charge to the wall socket and this error problem is gone. Conclusion was this that my Raspberry couldnt supply enough current for all attached devices. Now I am planning to install PiHut USB hub with external power supply and move all connected USB interfaces to it and then just with one connection cable to my raspberry (maybe RFX will work better :) we will see).

Update us if these two hints helped you ;D.

Cheers
Maciek