ESP8266 MQTT switch with local on/off and feedback Topic is solved

[SweetPants]

Project Scope:

When entering my house I want to be able to switch the light in the halway automatically between sunset and sunrise. So when the door opens, switch On the light for say 1-2 minutes and switch Off again using dzVentz. But I also want to be able to switch on/off the light using the existing wall switch(es).

This could be done using an extra (ESP8266 driven) relay in parallel with the original wall switch, but then you are not able to switch off the lights anymore with the wall switch and this is not suitable when having a hotel circuit (2 or more switches in series)

This could be solved by buying (expensive) wall switches which most of the time do not fit into the wall box or are totally different from the original.

Solution:
I've created an ESP8266 enabled switch that can be switched using MQTT, but also takes the switch wire from the wall switch as an input and do local switching if needed. When the wall switch is toggled, the switch also sends an MQTT update to domoticz to update the current switch state. The module is located in or near the lamp, so in case of a hotel circuit, it also works.

First test looks promising

[kimot]

ESPeasy works the same way without need scripts in Domoticz and works if Domoticz is down too.
Domoticz only sends "events" sunset, sunrise, switch slamp ( for remote control ) etc. Other ESPeasy sends door contact state to first (lamp) ESPeasy
This ESPeasy monitors mechanical switch state too, reports lamp state back to Domoticz and control lamp relay ( with timers if needed )

[SweetPants]

ESPeasy works the same way without need scripts in Domoticz and works if Domoticz is down too.

My solution does that too, no need for scripts, and no need to modify wall switches, just sense the presence of a switch signal, but you need some additional hardware to do that. And how about hotel circuits with two or more wall switches?

Edit: Have a second one running now on a 3 switch hotel circuit. Still looking good

[ronschaeffer]

Sounds really interesting. Please post some details about your hardware set up to detect the wall switch toggle. Thanks!

[SweetPants]

Sounds really interesting. Please post some details about your hardware set up to detect the wall switch toggle. Thanks!

Schematic: (The circled part converts the wall switch signal to something the ESP can handle

Feedback_Switch.png

Hardware:

Hardware.jpg

[ronschaeffer]

Thanks. Have you been happy with the performance?

[SweetPants]

Thanks. Have you been happy with the performance?

What performance? It's just a switch and it takes only a few msec to switch either locally or via MQTT

[Derik]

Project Scope:

When entering my house I want to be able to switch the light in the halway automatically between sunset and sunrise. So when the door opens, switch On the light for say 1-2 minutes and switch Off again using dzVentz. But I also want to be able to switch on/off the light using the existing wall switch(es).

This could be done using an extra (ESP8266 driven) relay in parallel with the original wall switch, but then you are not able to switch off the lights anymore with the wall switch and this is not suitable when having a hotel circuit (2 or more switches in series)

This could be solved by buying (expensive) wall switches which most of the time do not fit into the wall box or are totally different from the original.

Solution:
I've created an ESP8266 enabled switch that can be switched using MQTT, but also takes the switch wire from the wall switch as an input and do local switching if needed. When the wall switch is toggled, the switch also sends an MQTT update to domoticz to update the current switch state. The module is located in or near the lamp, so in case of a hotel circuit, it also works.

First test looks promising

Perhaps look at Tasmota..

[SweetPants]

Project Scope:

When entering my house I want to be able to switch the light in the halway automatically between sunset and sunrise. So when the door opens, switch On the light for say 1-2 minutes and switch Off again using dzVentz. But I also want to be able to switch on/off the light using the existing wall switch(es).

This could be done using an extra (ESP8266 driven) relay in parallel with the original wall switch, but then you are not able to switch off the lights anymore with the wall switch and this is not suitable when having a hotel circuit (2 or more switches in series)

This could be solved by buying (expensive) wall switches which most of the time do not fit into the wall box or are totally different from the original.

Solution:
I've created an ESP8266 enabled switch that can be switched using MQTT, but also takes the switch wire from the wall switch as an input and do local switching if needed. When the wall switch is toggled, the switch also sends an MQTT update to domoticz to update the current switch state. The module is located in or near the lamp, so in case of a hotel circuit, it also works.

First test looks promising

Perhaps look at Tasmota..

As said, it's already working fine, so no need for Tasmota

[ronschaeffer]

Thanks. Have you been happy with the performance?

What performance? It's just a switch and it takes only a few msec to switch either locally or via MQTT

Just meant whether it was working reliably

[SweetPants]

Thanks. Have you been happy with the performance?

What performance? It's just a switch and it takes only a few msec to switch either locally or via MQTT

Just meant whether it was working reliably

yup, running since jun 11 and never missed a local or MQTT switch up till now. Have 2 running, working on a third, waiting for some components.

[Dlanor]

yup, running since jun 11 and never missed a local or MQTT switch up till now. Have 2 running, working on a third, waiting for some components.

Can it also be installed behind a light switch? Dutch version ‘inbouwdoos’?

[SweetPants]

Can it also be installed behind a light switch? Dutch version ‘inbouwdoos’?

Depends on the depth of the 'inbouwdoos', but I don't think so, never tried. Also be aware that the ESP antenna is a PCB antenna and known not to be very good, so placing it behind the original wall switch could give problems.

[Antori91]

Hello SweetPants,
Could you publish the ESP8266 code you are using for this?

[SweetPants]

Hello SweetPants,
Could you publish the ESP8266 code you are using for this?

Send me a PM. Be aware, this is C code using the ESP SDK (2.2.0) directly, so no Arduino IDE or any other platform involved.

[srushti]

Sounds really interesting. Please post some details about your hardware set up to detect the wall switch toggle. Thanks!

Schematic: (The circled part converts the wall switch signal to something the ESP can handle
Feedback_Switch.png
Hardware:
Hardware.jpg

Hello,
I am facing the same issue and I want to update the status of the switch on domoticz when I toggle a wall switch. I am unable to access the Feedback_switch.png and hardware.jpg provided in this quote. Can you please provide me with the same and any additional information will be helpful.