Ant Weight Scale monitor and publish via MQTT
This is a .Net version of my other repository, MQTT_ant_scale. The orignal plan was to write the python version and run it on a RaspberryPi Zero W near the scales, but I didn't need to do that because the Ant USB Stick 2 has a long range (5m+) so I can plug it in directly to my always-on server which is a Windows 10 server.
This is built from the thisisant.com sdk sample. It was a quick and dirty port, so there is a lot of existing unused code.
The pc sdk wrapper projects are included, but not the binaries - you need to copy them from the sdk.
You'll need to update the App.config files and set the network key - this is free when you join thisisant.com and become a adopter member.
This project is a .Net Service (MQTT_AntScale) that listens for Ant+ weight scales to activate, reads the data and then publishes it via MQTT. There is also a command line version (MQTT_AntScale_Test).
The process listens for datapages 1 Body Weight, 2 Body Composition Percentage, 3 Metabolic Information, 4 Body Composition Mass, and 58 User Profile. It only publishes if all pages are received. It publishes when the connection to the scale is broken. I'm using the SmartLab W scales.
The data is published using topic tele/scales/weight. The json data is...
{
"timestamp": "2020-01-21T06:32:45", "
userProfile": 1,
"weight": 92.8,
"gender": "M",
"age": 22,
"height": 179,
"hydrationPercentage": 46.3,
"bodyFatPercentage": 16.7,
"activeMetabolicRate": 2199,
"basalMetabolicRate": 1912,
"muscleMass": 42.07,
"boneMass": 3.5
}http://www.franksworkshop.com.au/wordpress/2020/01/25/ant-weight-scale-mqtt-publisher/