se-O-matic

se-O-matic

Hi
I made a universal device for mysensors to building easy different nodes. The PCB fits in a small case (Strapubox 6090), so simple sensors can build with minimal effort.
alt text
The minimal assembly consists of a Mega328P microcontroller (as seen on many Arduinos), a RFM69CW rf module with 868 or 433 MHz and some little stuff for reverse protection and battery monitoring.

With different assembly options, this PCB can be used for:

Temperature, humidity and pressure measurements (With BME280 assembled)
Temp-Sensor above with additional light level (with extra BH1750 on the proto field)
Cheap temperature measurement (With DS18B20 assembled on the small proto field)
IR-reader for digital Power meter (with external IR Head connected to the UART)
Prototyping on Breadboards with soldered pin header

The PCB features also

ISP pins are connected to the pin header for easy flashing the bootloader
Arduino pro mini compatible pin header for connecting a cheap USB-UART-board without wires
Optional LED (for example for active transmission)
Mounting holes for fitting in the “Strapubox 6090” case
A snap off proto board, which fit under or on top of the MSN PCB.

Hardware and software can be found on my github repository. Github/se-O-matic/msn/

MSN as temperature sensors (BME280), complete assembly (without batteries):
alt text

MSN as power-meter reader with ir-head:
alt text

Greets!

se-O-matic

Thanks for the answers.

I want to keep the raspberry pi as central. This should fit all my needs in my rental apartment.
For HA, I have chosen a SD-card with application class A2.

For a clean setup, i will try to run HA in docker. So can i use the same Raspberry as gateway and for the controller.
So I dont have to use a "rare" mega328p for a serial gateway.

I report my results, when I find some time to work on it.

se-O-matic

Hello,

finally, ... I had time to test the "Option 2".
Because the stock of all shops are empty, I used my old RPI 3 B+. But after all, the CPU runs at 50%. Even the 1 GB ram is half free.

The way wasn't as easy as I thought. But now the setup runs pretty good.
This steps I had to make:

A fresh install of Raspian Lite (I used 64-Bit, if this is needed? I dont know)
Installed "Home Assistant Supervised", which runs in a docker. (I found a tutorial based on this informations: https://github.com/home-assistant/supervised-installer)
Installed the MySensors Gateway with some changes! (https://www.mysensors.org/build/raspberry)
3b. The manual works fine for 32 Bit raspbian. For 64 Bit you have to edit two files bevor the compile starts. (https://forum.mysensors.org/topic/11456/is-mysensors-rpi-gw-32bit-only/8)
In my case i have to change the section for the BCM2837 (= RPI3) as described in the post.

Now, I have a clean setup for my smarthome with MySensors Nodes and Zigbee Nodes.
alt text
The RFM69 ist directly connected to the GPIO of the PI.

The power consumption is araound 2 W. Somewhat lower when idle.

se-O-matic

Hello,

finally, ... I had time to test the "Option 2".
Because the stock of all shops are empty, I used my old RPI 3 B+. But after all, the CPU runs at 50%. Even the 1 GB ram is half free.

The way wasn't as easy as I thought. But now the setup runs pretty good.
This steps I had to make:

A fresh install of Raspian Lite (I used 64-Bit, if this is needed? I dont know)
Installed "Home Assistant Supervised", which runs in a docker. (I found a tutorial based on this informations: https://github.com/home-assistant/supervised-installer)
Installed the MySensors Gateway with some changes! (https://www.mysensors.org/build/raspberry)
3b. The manual works fine for 32 Bit raspbian. For 64 Bit you have to edit two files bevor the compile starts. (https://forum.mysensors.org/topic/11456/is-mysensors-rpi-gw-32bit-only/8)
In my case i have to change the section for the BCM2837 (= RPI3) as described in the post.

Now, I have a clean setup for my smarthome with MySensors Nodes and Zigbee Nodes.
alt text
The RFM69 ist directly connected to the GPIO of the PI.

The power consumption is araound 2 W. Somewhat lower when idle.

se-O-matic

Thanks for the answers.

I want to keep the raspberry pi as central. This should fit all my needs in my rental apartment.
For HA, I have chosen a SD-card with application class A2.

For a clean setup, i will try to run HA in docker. So can i use the same Raspberry as gateway and for the controller.
So I dont have to use a "rare" mega328p for a serial gateway.

I report my results, when I find some time to work on it.

se-O-matic

Hi,

currently I'm using MySensors RPI-Gateway and MyController on the same RPI 2 .
I connected a RFM69 Modul directly to the GPIO of the Pi.
This system works fine for many Years.

Now its time for an upgrade.
I want to use HA and I want to add ZigBee devices. For that I purchased the SonOff Dongle-P and I grapped a RPI 3 for testing HA parallel to my running setup.

Now I want to tidy up. Two RPI for a task, which one alone can do is not the best solution.
The question of all questions is now, how to combine HA, MySensors and Zigbee in the best way?

Option 1 (I have to build the serial GW, and ICs (328P) are rare at the moment):
HassOS + MySensors Serial Gateway (RFM69 connected to an ATMEGA328 connected to the UART-pins from the RPI) + ZigBee USB Stick. (I dont want to use a UART<-> USB chip, when a RPI has native UART on the GPIO)

Option 2 (Favorite, because I dont have to build hardware stuff):
HA running in Docker + MySensors RPI Gatway (RFM69 connected directly to the GPIO) + ZigBee USB Stick. (I found a tutorial for installing HA in Docker with Supervisor)

Are there any pitfalls in the Options above?
Can I use the UART Port "/dev/ttyAMA0" in HassOS?
Are there any limitations in Option2, when HA running in Docker?

I hope someone can give some tips.

Thanks!
Sebastian

se-O-matic