@user2684 Thanks for reporting. I have updated the instructions with the Sonoff details.

@antonholmstedt a pro mini fits if you cut the corners, check out https://forum.mysensors.org/topic/6612/door-sensor-remix-of-some-mys-community-efforts

@user2684 I have a sonoff and have posted a few examples here https://www.mysensors.org/build/sonoff, nodeManager would maybe save a few lines of code for the end user but you will have quite a lot to code I guess if you add esp8266 support, the sonoff is just a relay with a LED and a button which nodeManager already supports.

This project is a remix of a few other MYS project. The base is the excellent Window Sensor with Sensebender (high WAF) where I thought I could get some use of the tiny jModule instead. I ended up ordering from a link to dirtyPCBs in the comments.
This is the start, dirt cheap but still looks ok.

Rip it open, de-solder the glass reed switch and don't bend the pins since that will most likely kill it. Use a dremmel and remove some excess plastic in the top part of the speaker fitting.

Assemble your jModule. I didn't use any bent pins since the space is extremely limited.

As you see, the wiring is just the reed switch to GND and 3. Power and GND to the edge of the jModule (on to VCC of pro mini). Since it's battery powered the pro mini LED is removed (destroyed ) and traces cut. Cut the corners of the pro mini (!) to make it fit.

Last but not least, some code. I gave NodeManager by @user2684 a try and it makes things almost to easy

  /*
   * For v1.3
   * Register below your sensors
  */
  nodeManager.setBatteryMin(1.8);
  nodeManager.setBatteryMax(3.2);
  nodeManager.setBatteryReportCycles(2);
  nodeManager.registerSensor(SENSOR_DOOR,3);
  nodeManager.setSleep(SLEEP,3,HOURS);
  /*
   * Register above your sensors
  */

Every 6 hous the sensor will report battery status. On open or close it will report state then go back to sleep.

The second sensor took 15 minutes to assemble, quite ok imho...

@warmaniac Excellent!

@warmaniac You dont need mqtt/mosquitto. Just follow the guide at https://www.domoticz.com/wiki/MySensors for adding a "MySensors Gateway with LAN interface (Ethernet)" then follow the ethernet sketch here https://www.openhardware.io/view/318/Sonoff-relay-using-MySensors-ESP8266-wifi-or-mqtt-gateway

@warmaniac the sonoff works just like any sensor except its configured as a gateway since that is what is needed for esp8266+mysensors . Mqtt or ethernet/wifi is just a matter of taste and your setup, skip mqtt if you don't have anything else using it.

@mar.conte if it's sleeping, it will not receive anything until wake-up. If you change the sleep mode to wait,

nodeManager.setSleepMode(WAIT);
[or]
nodeManager.setSleep(WAIT,1,HOURS);

the sensor will be awake all the time (and drain your battery).

@user2684 said in NodeManager: plugin for a rapid development of battery-powered sensors:

behavior, in the dev branch the default behavior is now the opposite: waking up from an interrupt does not count as a cycle. The drawback though is that if the sensor triggers continuously, it will never report the battery to the controller since unable to complete a full sleep

This is tricky. Myself uses the battery report as a heartbeat on top of checking the battery level, thus I only need the info once or twice a day. Not sending on wake-up is good since it will preserve battery. I guess a combination the right sleeping time and cycle count could end up quite ok. For a front door sensor, 4h sleep and 2 cycle count would report battery level after the night and then maybe one more time, max 3 times per day, which is more than enough. I'll test the dev branch after some sleep

Btw, great work!! and yes, using wait works just fine, no other issues so far.

@user2684 Excellent!
A question, I'm doing a simple door sensor

  nodeManager.setBatteryMin(1.8);
  nodeManager.setBatteryMax(3.2);
  nodeManager.setBatteryReportCycles(1);
  int door = nodeManager.registerSensor(SENSOR_DOOR,3);
  ((SensorDoor*)nodeManager.get(door))->setDebounce(500);
  nodeManager.setSleep(SLEEP,1,HOURS);

Now, the node is constantly sending. It seems as if every wake-up triggers a sending, and a wakeup from the debounce sleep, then battery reporting etc.. Removing the debounce helps and lets the node sleep.

AWAKE
SEND D=0 I=200 C=1 T=48 S=AWAKE I=0 F=0.00
BATT V=3.16 P=97
SEND D=0 I=201 C=0 T=38 S= I=0 F=3.16
SWITCH I=1 P=3 V=0
SEND D=0 I=1 C=1 T=16 S= N=0 F=0.00
SLEEP 60s
SEND D=0 I=200 C=1 T=48 S=SLEEPING I=0 F=0.00

[here i "open" the door]

WAKE P=3, M=1
AWAKE
SEND D=0 I=200 C=1 T=48 S=AWAKE I=0 F=0.00
BATT V=3.16 P=97
SEND D=0 I=201 C=0 T=38 S= I=0 F=3.16
SWITCH I=1 P=3 V=1
SEND D=0 I=1 C=1 T=16 S= N=1 F=0.00
SLEEP 60s
SEND D=0 I=200 C=1 T=48 S=SLEEPING I=0 F=0.00

[just a second wait]

WAKE P=3, M=1
AWAKE
SEND D=0 I=200 C=1 T=48 S=AWAKE I=0 F=0.00
BATT V=3.16 P=97
SEND D=0 I=201 C=0 T=38 S= I=0 F=3.16
SWITCH I=1 P=3 V=1
SEND D=0 I=1 C=1 T=16 S= N=1 F=0.00
SLEEP 60s

[repeated until closing "door"]

Edit:

I changed the sleep to a wait and now the behavior is correct (this line).

// what do to during loop
void SensorSwitch::onLoop() {
  // wait to ensure the the input is not floating
  if (_debounce > 0) wait(_debounce);
  // read the value of the pin
  int value = digitalRead(_pin);

MY I=8 M=1
SEND D=0 I=200 C=0 T=48 S=STARTED I=0 F=0.00
SWITCH I=1 P=3 V=0
SEND D=0 I=1 C=0 T=16 S= N=0 F=0.00
SLEEP 60s
SEND D=0 I=200 C=1 T=48 S=SLEEPING I=0 F=0.00

[open]

WAKE P=3, M=1
AWAKE
SEND D=0 I=200 C=1 T=48 S=AWAKE I=0 F=0.00
BATT V=3.16 P=97
SEND D=0 I=201 C=0 T=38 S= I=0 F=3.16
SWITCH I=1 P=3 V=1
SEND D=0 I=1 C=1 T=16 S= N=1 F=0.00
SLEEP 60s
SEND D=0 I=200 C=1 T=48 S=SLEEPING I=0 F=0.00

[close]

WAKE P=3, M=1
AWAKE
SEND D=0 I=200 C=1 T=48 S=AWAKE I=0 F=0.00
BATT V=3.16 P=97
SEND D=0 I=201 C=0 T=38 S= I=0 F=3.16
SWITCH I=1 P=3 V=0
SEND D=0 I=1 C=1 T=16 S= N=0 F=0.00
SLEEP 60s
SEND D=0 I=200 C=1 T=48 S=SLEEPING I=0 F=0.00