I have boxes of SBC and MCU units bought with the best intentions but not used. However, another should be arriving in the post soon (Pitaya Go) and I’m hoping I’ll be able to get my finger out and figure out how to whip up a device to read from my fitness kit and then output to MQTT.
In our house all the automation devices talk to the MQTT broker and just about anything can be done, usually with NodeRed.
My intention is to control the fan speed from heart rate. Yes, I know there are other options and projects for doing this but that’s just the first possibility. As my pain cave is on the far side of the house and upstairs away from other humans and I’m overweight and unfit I will probably set it to flash all the lights in the house, turn off the telly and announce on all the Alexa units “heart attack in progress” if my HR drops to zero or goes above 200 with the bike speed/cadence at zero.
I could also log all data to a database as well as ambient temperature, humidity and so on.