RadonReader-MiPy

A Micropython-based tool for the ESP32 microcontroller to read out a RadonEye sensor using BTLE. Radon level readouts are sent to a HomeMatic system via the web API.

Setup

1. Copy config_template.json to config.json, adjust parameters.
2. Copy config file to ESP32, copy btle_reader.py to ESP32 as main.py
3. Reboot ESP32, check serial output to ensure everything is working.

Config

Parameter	Default value	Description
ssid	SSID	WiFi SSID
pass	PASS	WiFi password
radoneye_addr	AA:BB:CC:DD:EE:FF	Radoneye BT MAC address
radoneye_addr_type	1	Radoneye BTLE address type (1 for RadonEye, 0 for spoofer)
readout_interval	20	Radon readout interval in seconds
homematic_addr	http://0.0.0.0/addons/xmlapi/statechange.cgi?ise_id={ise_id}&new_value={radon}	HomeMatic web API address
homematic_ise_id	12345	HomeMatic Radon ISE ID
reset_timer	24	Interval for automated ESP32 reboot in hours (set to 0 to disable)

RadonEye spoofer

The repo contains a utility named blte_spoofer.py, which can be used to imitate RadonEye behavior using another ESP32 for debugging. To use it, simply copy it to another ESP32 as its main.py.
Important: to connect to it, make sure to set the BTLE address type in the reader's config file to 0.

TODO

• MQTT support