@ncollins It is possible to use NRF51822 for gateways with serial. I am using it for many months now. We need USB to serial adapter.
Also, I do not use JLink or ST-Link for flashing the NRF51 chips. I use raspberry pi with OpenOCD.
OpenOCD setup can be overwhelming (it was for me) but I have been able to make it work and replicate for a while now. If someone needs inputs, I am happy to help. Ask here or reach out to me on discord @ Puneit#2433

For the very reason you stated - hardware bugs in NR51 chips leading to high power-consumption - they make compact repeater nodes / powered nodes with repeaters.

@jamzm From what I understood is that a Fing box is an interface device which adds to your router and it is something related to the WiFi network.

I am no expert - -still loads to learn but then I think there is some disconnect. While the Mysensors network does work on the 2.4GHz frequency range (through the NRF24 or NRF5 radios), the network is an ISM band network and not a WiFi standard. Therefore you need to add a gateway from the door sensor to your network.

Take a look at the Getting Started and Build pages.

The minimum you need is a arduino board of your choice with a radio of your choice for the sensor; an arduino/esp8266 of your choice and the same radio for the gateway and a controller of your choice as well.

Had I been starting and someone asked me to choose a bunch of stuff, I would get scared. So I will tell you what I use.. its just one of the implementations.

For the sensors I use arduino pro mini 3.3v with NRF24L01 and I am experimenting with NRF51822 (stay away from these)
For the gateway, I use an arduino uno with NRF24l01 with an ethernet shield running MQTT gateway
For the controller I use Home Assistant.

Now for the sensor itself - if you want to DIY the same, then I would do it this way (again different people would have different methods)

Use arduino pro-mini with NRF24l01 and a reed-switch. 3D print the case for it and use it.

I hope I was able to help in some manner.

I have said this before (I do not know where) but here it is again.
One of the reasons that MySensors didn't become as popular as other frameworks is because it somewhat matured before YouTubers were popular. Today, fewer people like to read, and most like to watch a YouTube video sitting on the toilet. The YouTubers not only provide step by step instructions, they do live streams and then there are Discord servers.

I myself manage a small discord server on Home Automation and I see everyday newbies coming in and they are looking for a magical cheap solution which somehow works.
The barrier for entry into MySensors is big (involves a lot more wires, it does not seem sexy, no one talks about it on YouTube). On the other hand, everyone has an ISP given All-In-One router+AP+DHCP server and ESPs simply connect to them. Everyday Amazon, AliExpress etc are flooding the market with Wifi based products, so the time for feeling of gratification is very small. You buy, plug in, use the app and it works

That said, we do have a dedicated MySensors channel on our discord server and I have been pushing (literally) people to try MySensors. Serious DIYers are still interested and I have successfully introduced 4 people to it, 2 have started using it.

I won't call the Mysensors a stagnant or dying breed but the concept of forums in my opinion is. Forums are still the most structured support system (I am not saying otherwise) but many people want instant answers, - they do not want to make the effort asking a good question. And across many forums which have been there for a few years, a common answer is "search before you ask".

This is my two cents on this topic

Home assistant has a docker container which talks nicely with a mysensors serial gateway connected via USB on a Dell machine.

 homeassistant:
    container_name: hass
    image: homeassistant/home-assistant:stable
    volumes:
      - /home/server/homeassistant/:/config
      - /etc/localtime:/etc/localtime:ro
      - /var/run/docker.sock:/var/run/docker.sock
    restart: unless-stopped
    devices:
      - /dev/ttyUSB0:/dev/ttyUSB0:rwm
    healthcheck:
      test: ["CMD", "curl", "-f", "http://127.0.0.1:8123"]
      interval: 30s
      timeout: 10s
      retries: 6
    network_mode: host
    depends_on: 
      - mosquitto

the following line enables serial gateway into HA and then in the latest release 2021.3 one can add Mysensors from UI

devices:
      - /dev/ttyUSB0:/dev/ttyUSB0:rwm

@jkandasa I am yet to use to Serial2Mqtt in order to test this out without breaking my current setup.. I will do it and share my feedback. I would definitely want to run Mycontroller in parallel to HA.

You can upload Mysensors sketch to NRF5 modules and that way it can speak to mysensors network and then communicate to your controller through the gateway

Thank you so much! :100: :+1:

@sundberg84 I used a 3904 transistor between the relay and arduino and it works just fine with 3.3 V Arduino pro mini 8 HMz.
(2N2222 also works, but I have many pieces of 3904 and just a few 2N2222, hence using 3904)

@ncollins Yes, it is very easy to (re)deploy a whole system using the docker compose files.
I have 4 splits --- one being my core containers , Homeassistant, Nodered, Mosquitto, etc and then one of them being "applications that I don't need but have".. I recently had to redeploy and my core stack was running in under 10 minutes..

It is a very powerful tool.

@tBS I think I am in the same boat as you. Well, I started with MySensors few years ago and then shifted most of my stuff to Esp8266 - Tasmota and ESPHome. I am rebooting this project personally for me.

Yet, I feel somehow MySensors is a better implementation in terms of its mesh capabilities and repeater function.
And it is easier to make MySensors battery operated. NRF24 or NRF5x are more efficient power wise as compared to ESP8266 or ESP32.
That said, I think what we lack in this project (and if I am unable to find, maybe someone can point it out) are YouTubers like Drzzs of Home Assistant.

I have a Telegram group of Home Automation users in India and off-late I have been pushing this project on my group. We are in the midst of a lockdown, hence we cannot source parts for now.
That said, I think while you could be late in the game - a lot of development has happened and bugs were ironed out.
I am extremely happy to help as much as I can. I am no expert - so most likely I won't have the answers. I believe two heads are better than one so we can work things out together.

Cheers!

Hello.
I dipped my toes into the world of home automation and discovered mysensors a couple of years ago. Then, I built (successfully) couple of relay actuators and stopped. Reason: I was in a rented apartment and couldn’t do anything permanent as such. Now, I have my own apartment and we have more or less settled in.
I would like to make our home a wee bit smarter- turn on/off lights , put a timer on a washing machine power source, humidity detection , gas leak detection , door sensors etc.
I have Arduinos pro mini and nrf24 radios with me from earlier.
My questions are the following

1. I used domoticz earlier but now more inclined towards openahb2. Is it advisable to make a switch ?
2. I read about zigbee and zwave. But I don’t have any existing hardware of these protocols but the only advantage I have so far read is that these protocols are “stable” or “safer”. I am in India and as far as I know there are no regulations as such when it comes to tinkering with home electricals (I still don’t want to burn down the house). In my scenario , will Mysensors be a stable solution?
3. I want some kind of redundancy in the setup - if my home network fails or is down, I should still be able to get things running. Hence, shall I also consider building a scene controller which can control the relays if a phone is unavailable or Alexa is down etc. basically it should be SO friendly or a guest friendly.
   I am planning to start tomorrow and looking for advice. Thanks.

@Sebex Will this help
https://grabcad.com/library/arduino-pro-mini-1
and should we move this conversation to another topic /PM as this is not relevant to this thread.

@NeverDie While I never used proxmox or VM, I did use the supervised install on Linux and then moved away from it. The advantage of supervised install is that you get the addon store but the disadvantage is that Supervisors starts to complain and moan as you install more containers on the host system.
It then stops you from upgrading to latest versions and prevents addons to be updated. At that stage I decided to move away from a supervised install.

@tBS Hi, so there are two separate topics. Let us address them one by one. I will pickup the NRF5x communication with NRF24 .

I too am using an esp8266 based gateway which has an nRF24 radio attached. The gateway compiles and starts without a problem.
On the sensor node side, I am using an NRF51822 radio. Now, these devices (to best of my understanding) do not communicate over Bluetooth with the NRF24 or Mysensors.
You need to flash a MySensors sketch with the radio option for NRF5 on your NRF52 or NRF51 chip and then this chip will start talking to your Gateway. Use the radio option and

#define MY_RADIO_NRF5_ESB

disable other radios. For testing you could pickup the Mocksensors sketch, change the radio for match the NRF5. Of course you need to install the boards and the libraries. Follow this NRF5 Beginner Guide.
For me this works fine as well. I can see MQTT messages flowing via the ESP8266 Gateway to my broker. I have not yet added this to my HomeAssistant.
Now, coming to your second topic

Your struggles with OpenHab. I haven't used OpenHab in years, so I am not the right person for it. However, I suggest that you use a MQTT ESP8266 Gateway and use an MQTT broker to see the messages flowing back to the broker.

Hope this helps you.
Cheers.

Two thoughts come to mind depending on what you prefer

1. Remove the manual function and rely on a relay ; I would make it a binary heater with two values - ON at full heat and OFF. Then we can use a temperature sensor placed at a good location to as a feedback mechanism to turn the relay On & Off

2. You may consider putting a motor based actuator (maybe find one on Aliexpress - something like this Actuator Arm or you can DIY using a stepper motor and 3D printer.

Some images of the device you want to manipulate will be nice

Hope this helps
Cheers

Adding on to this.. If we use a map function to convert the battery level like this, then it shows up as an attribute in HomeAssistant and Homekit

Map function works and not the percent. The percent always shows as zero in Homekit.
Hope this helps someone!

void battery()
{
  long batteryMillivolts = hwCPUVoltage();
  int batteryV =batteryMillivolts /1000 + 0.5;
  auto batteryLevel = map(batteryV,EMPTY_BATTERY, FULL_BATTERY, 0, 100);
  if (batteryLevel > 100) 
  {batteryLevel=100;}

#ifdef MY_DEBUG
  Serial.print("Battery voltage: ");
  Serial.print(batteryMillivolts / 1000.0);
  Serial.println("V");
  Serial.print("Battery Level ");
  Serial.print(batteryLevel);
  Serial.println(" %");
#endif

  if (oldBatteryLevel != batteryLevel) {
    sendBatteryLevel(batteryLevel);
    send(msgV.set(batteryV,2));
    oldBatteryLevel = batteryLevel;
  }
}


@NeverDie VM install is one with the supervisor.. yes this is what I was referring to. VM is one of the supported methods, I guess

@zboblamont Thanks.. this is promising.. Of course, I was trying to complicate this way too much than needed. I will work with the regular reed switch.

@NeverDie creating VLANs and restricting access of the IOT devices to must have access is the method I follow.

@scalz May I request you to share your code for it please. Thanks.