The Bluetooth Bridge is NOT a universal miracle program / product / interface combining everything.
It is a "gimmick" we use to test whether we can read data from Bluetooth devices and send the data to other applications / programs.
The true story is:
I was very stressed during a period and the doctors could not explain why some of my heart beats were missing. I was examined 3 times.
With doctors not being very clear or knowledgeable, I got scared and angry and developed the HeartRateVariability program which detects and very clearly shows details about your hearts rhythm and stress level by reading from standard chestbelts.
Today I know more about the heart and related stress than most doctors - and how to overcome it.
The HeartRateVariability program is perfect if you want to monitor your hearts health without telling your company or family.
A a Bluetooth receiver / watcher was a neccessary part of the HeartRateVariability program, so I had the idea to create a BluetoothBridge holding this vital functionality, so pulse and heartrate timing could be send to other programs like Home Assistant via MQTT messages.
When a suitable chestbelt is connected to the Bluetooth Bridge it sends out MQTT messages with the topic "BluetoothBridge/HRV-pulse" holding your pulse in beats pr minute and "BluetoothBridge/HRV-RR" holding the time between each heart beat in miliseconds.
Maybe you can use that in Home Assistant to trigger lights or sends notifications when the pulse is high or low.
Be aware that a slight delay of (typically 0 to 2 seconds) may occur as MQTT is send over your local network which is busy service all your devices.
The HeartRateVariability program immediately delivers accurate and real-time feedback about your cardiovascular health, as the Bluetooth receiver / watcher is integrated in this program to avoid any delays.
