A small helper crate to connect to and read data from a MEATER smart thermometer as well as a little Raspberry Pi Zero application to display the temperature and battery level.
Install the following meater.service into /etc/systemd/system/meater.service
[Unit]
Description=MEATER service
After=bluetooth.target
[Service]
ExecStart=/usr/bin/meater
[Install]
WantedBy=multi-user.target
to start the application as a systemd service automatically. In addition, edit
/etc/bluetooth/main.conf and change
DiscoverableTimeout = 0
to avoid losing the device after three minutes.
Temperature conversion taken from the reverse engineering efforts by Nathan Faber.