The Pulse Express board makes it simple to get the three vital parameters - SpO2, Heartrate, and Blood Pressure trending (BPT).
I built a desktop radiation monitor based on a cheaply available board, added some toggle switches, Nixie tubes and a Raspberry Pi.
Finally, finally, we've reached the last week of 2020. The best thing to be said for 2020, according to Dave Barry's always hysterical Year in Review, is no one got killed by the murder hornets. Biggest joy? Buying toilet paper.
Started with a The Things Network to Azure IoT Hub gateway. Then some "scope creep" added Device Provisioning Service & IoT Central support.