Milfra MFA06 Motion Switch (Dual Button/Relay)

Smart switch with 2 buttons & 2 Relays. This switch also has a motion sensor and daylight (non-lux) sensor.

Purchase Milfra MFA06 via Amazon

Images

Flashing

You'll need a USB TTL adapter and here is the wiring diagram. Verify your USB TTL adapter jumper is on 3v3(if equipped) and you use the 3V3 pin. DO NOT USE THE 5V for flashing.

You can just use dupont wires and push them into the slots no soldering required like shown here:

Open the TASMOTA webinstaller and flash it with the regular TASMOTA release.

TASMOTA Template

{"NAME":"Milfra MFA06 Dual Relay","GPIO":[33,0,0,0,32,160,0,0,224,288,161,0,225,0],"FLAG":0,"BASE":18}

GPIO Layout

GPIO	Component	Description
GPIO00	Button 2	Bottom button
GPIO04	Button 1	Top button
GPIO05	Switch1	Motion Sensor
GPIO12	Relay1	Actual mains relay 1
GPIO13	Led 1	Blue LED
GPIO14	Switch2	Daylight Sensor Switch
GPIO16	Relay2	Actual mains relay 2

Settings

Setting	Description
switchmode1 2	Set the motion sensor off=idle / on=motion
switchmode2 1	Set the light sensor off=dark / on=light
setoption114 1	Detach switches from relays and send MQTT messages instead

backlog switchmode1 2; switchmode2 1; setoption114 1; 

Rules

Motion light

This rule will give you the basic motion controlled switch rule but allow you to configure a blind time so if you turn off the switch it won't just immediately turn back on while you leave the room. This rule can be input in the console of the TASMOTA webui

Explained rules

This rule executes the turning on an off the light

Rule1 
## System Boots up and sets the default values for each of our timers
ON system#boot DO 
    backlog 
        ### Used for duration for the light to stay on after motion stops
        var1 300; 
        ### Used for blind time where the motion doesn't turn back on the light after a button turns it off
        var2 10; 
        ### Used as a boolean value to say if blind time is enabled or not
        var3 1 
ENDON 
## When the button is pressed on the physical switch
ON button1#state DO 
    backlog 
        ### toggle the light on / off
        power1 toggle; 
        ### set a timer for blind time
        ruletimer2 %var2%; 
        ### Enable blind time by setting the variable to 0 indicating the motion events are disabled
        var3 0 
ENDON 
## Blind Time timer is finished re-enable the motion sensor
ON rules#timer=2 DO 
    var3 1 
ENDON 
## Motion detected
ON switch1#state=1 DO
    ### Trigger an event we can trigger on named motion
    event motion=%var3% 
ENDON 
## Motion light timer expires
ON rules#timer=1 DO 
    ### Trigger an event we can trigger on named timeroff
    event timeroff=%var3% 
ENDON 
## Power was turned off via the button, web ui, ha etc...
ON power1#state=0 DO 
    ### Trigger an event we can trigger on named poweroff
    event poweroff=%var3% 
ENDON 
## Motion event occurs
ON event#motion=1 DO 
    backlog 
        ### Turn on the light
        power1 1; 
        ### Start the timer to allow the light to turn back off when the timer is done
        ruletimer1 %var1% 
ENDON 
## Light timer event occurs
ON event#timeroff=1 DO 
    ### Power off the light
    power1 0 
ENDON 
## Power going off event occurs
ON event#poweroff=1 DO 
    ### kill the light timer because we don't need it to turn off the light
    ruletimer1 0 
ENDON 

Rule2

---

This rule publishes the adjustments of the blind and light time values when they are adjusted

Rule2 
## When the var1 (light time) variable values change it publishes them to MQTT to persist
ON Var1 DO 
  publish2 stat/%topic%/light_time %Var1% 
ENDON
## When the var2 (blind time) variable values change it publishes them to MQTT to persist
ON Var2 DO 
  publish2 stat/%topic%/blind_time %Var2% 
ENDON

Rule3

---

This rule publishes the HomeAssistant Discovery details about the switch so the blind and light time get adjustment sliders in the configuration page of the device. Thanks Tony (DrTFav) for this excellent addition!

Rule3 
## When the system boots up publish the HA discovery JSON to the right endpoint in MQTT for this device
ON system#boot DO 
## Publish the discovery details for the light time and adjust the steps or min max values you see appropriate
  publish2 homeassistant/number/%macaddr%_light_time/config 
    {
      "name":"Light Time",
      "state_topic":"stat/%topic%/light_time",
      "availability_topic":"tele/%topic%/LWT",
      "payload_available":"Online",
      "payload_not_available":"Offline",
      "command_topic":"cmnd/%topic%/Var1",
      "min":15,
      "max":1800,
      "retain":true,
      "step":15,
      "unit_of_measurement":"s",
      "unique_id":"%macaddr%_light_time",
      "device":{"connections":[["mac","%macaddr%"]]}
    } 
ENDON
ON system#boot DO 
## Publish the discovery details for the blind time and adjust the steps or min max values you see appropriate
  publish2 homeassistant/number/%macaddr%_blind_time/config 
    {
      "name":"Blind Time",
      "state_topic":"stat/%topic%/blind_time",
      "availability_topic":"tele/%topic%/LWT",
      "payload_available":"Online",
      "payload_not_available":"Offline",
      "command_topic":"cmnd/%topic%/Var2",
      "min":0,
      "max":60,
      "retain":true,
      "step":5,
      "unit_of_measurement":"s",
      "unique_id":"%macaddr%_blind_time",
      "device":{"connections":[["mac","%macaddr%"]]}
    } 
ENDON

One liner rules (for copy pasting into console)

Rule1

---

Rule1 ON system#boot DO backlog var1 300; var2 10; var3 1 ENDON ON button1#state DO backlog power1 toggle; ruletimer2 %var2%; var3 0 ENDON ON rules#timer=2 DO var3 1 ENDON ON switch1#state=1 DO event motion=%var3% ENDON ON rules#timer=1 DO event timeroff=%var3% ENDON ON power1#state=0 DO event poweroff=%var3% ENDON ON event#motion=1 DO backlog power1 1; ruletimer1 %var1% ENDON ON event#timeroff=1 DO power1 0 ENDON ON event#poweroff=1 DO ruletimer1 0 ENDON 

Rule2

---

Rule2 ON Var1 DO publish2 stat/%topic%/light_time %Var1% ENDON ON Var2 DO publish2 stat/%topic%/blind_time %Var2% ENDON

Rule3

---

Rule3 ON system#boot DO publish2 homeassistant/number/%macaddr%_light_time/config {"name":"Light Time","state_topic":"stat/%topic%/light_time","availability_topic":"tele/%topic%/LWT","payload_available":"Online","payload_not_available":"Offline","command_topic":"cmnd/%topic%/Var1","min":15,"max":1800,"retain":true,"step":15,"unit_of_measurement":"s","unique_id":"%macaddr%_light_time","device":{"connections":[["mac","%macaddr%"]]}} ENDON ON system#boot DO publish2 homeassistant/number/%macaddr%_blind_time/config {"name":"Blind Time","state_topic":"stat/%topic%/blind_time","availability_topic":"tele/%topic%/LWT","payload_available":"Online","payload_not_available":"Offline","command_topic":"cmnd/%topic%/Var2","min":0,"max":60,"retain":true,"step":5,"unit_of_measurement":"s","unique_id":"%macaddr%_blind_time","device":{"connections":[["mac","%macaddr%"]]}} ENDON

Activate the Rules with

Rule1 1
Rule2 1
Rule3 1

Using retain to adjust timeouts

This will be as easy as publishing the desired values into MQTT with a retain flag set. Then when the switch comes back online and able to talk to MQTT it will say hey.. pick up these retained values and change the variables to the time periods we selected.

topic

Copy this name and we'll use it later

Adjusting from the TASMOTA console using the 'publish2' command which is the retain publish command to push a retained message to the MQTT broker

var1 for light timer duration:

publish2 cmnd/<TOPIC>/var1 <NUMBER OF SECONDS>

var2 for the (blind time) delay before refire of the motion on:

publish2 cmnd/<TOPIC>/var2 <NUMBER OF SECONDS>

This will allow these settings to trump the defaults on the boot up of the switch.

Home Assistant

Display as

The daylight sensor will show up as a sensors but have horrible entity id's and names. Let's rename them and adjust the shown as option accordingly

After you've done all of that you shouldn't have any issues adjusting your helper values and having it adjust it on the TASMOTA motion switch!