rubinho101/MMM-01ZM

MMM-01ZM

Since I got a couple of Xiaomi LYWSDCGQ 01ZM Temperature-Humidity AND Nova PM SDS011 sensors and I want to display the values on the MMM MagicMirror2 without using the Gateway approach, I created this MMM-01ZM module.

Installation of 01ZM Temp&Humidity Sensor

In /home/pi/MagicMirror/modules create a new folder MMM-01ZM with git clone https://github.com/rubinho101/MMM-01ZM\

Easy installation

Go to the /modules/MMM-01ZM folder cd /home/pi/MagicMirror/modules/MMM-01ZM.
Make the postinstaller.sh executable chmod +x /home/pi/MagicMirror/modules/MMM-01ZM/img/postinstaller.sh.
In the /modules/MMM-01ZM folder npm install to install the dependencies and libraries.

Manual installation of dependencies and libraries

This module requires the mitemp_bt library.
Go to the /modules/MMM-01ZM folder cd /home/pi/MagicMirror/modules/MMM-01ZM
pip3 install bluepy
pip3 install btlewrap
git clone https://github.com/hassiweb/mitemp
Move the parseBLE01ZM.py file into the /MMM-01ZM/mitemp folder.
In /home/pi/MagicMirror/modules/MMM-01ZM/mitemp/mitemp_bt/mitemp_bt_poller.py line 34 change the second argument self._bt_interface = BluetoothInterface(backend, adapter) to self._bt_interface = BluetoothInterface(backend, adapter=adapter).

In addition, parseBLE01ZM.py needs Sanic the Python3 web server framework to interact with MMM:
pip3 install sanic

The node_helper.js requires get-json library:
npm install get-json

Final steps

Next, add the MAC addresses of your sensors to the node_helper.js array:
const rooms = ["your sensor mac", "your sensor mac", "your sensor mac"]

Finally, add MMM-01ZM to the config.js file:

		{
			module: "MMM-01ZM",
			position: "upper_third"
		},

Before you start MMM run parseBLE01ZM.py in MMM-01ZM/mitemp.

Please be aware of the setInterval and setTimeout values in the MMM-01ZM.js and node_helper.js files. This needs to be balanced based on the number of sensors you parse to avoid sending too many requests to the Raspi BLE component.

Hint: It takes about 45 seconds for the first two sensors to be displayed.

Installation of Nova PM Sensor SDS011

Note: Only valid for Nova PM Sensor SDS011 to display Air Quality.

Move airquality.py into the ./mitemp folder
Go to the /modules/MMM-01ZM/mitemp folder cd /home/pi/MagicMirror/modules/MMM-01ZM/mitemp
Get sds011.py into mitemp folder git clone https://github.com/ikalchev/py-sds011/blob/master/sds011/__init__.py and rename the file to sds011.py
Uncomment the @app.route('/pmdata') and following async def get_pm() function in parseBLE01ZM.py

Hint: The SDS011 air quality sensor data is being corrected by pmCor(Humidity) if the humidty is > 38 in MMM-01ZM.js. The parameter k, which is the degree of hygroscopicity of a particle, is set to 0.5.