[Stephen]’s system uses commercially available sensors ... to Home Assistant. By looking at the graphs generated, you can tell when someone entered the tub from a step change in pH and ORP.

Test connectivity between the Arduino board and an instance of Home Assistant running Mosquitto Broker, ensuring that the MQTT messages are recieved and can be handled by automations, scripts, or ...

[Stephen]’s system uses commercially available sensors ... to Home Assistant. By looking at the graphs generated, you can tell when someone entered the tub from a step change in pH and ORP.

LowPowerLab's R6 Moteino The Moteino is a super-low-power Arduino clone that incorpoprates a 433Mhz FSK (RFM69HCW) transceiver which transmits data to our EmonPi. Flow cell purchased from Sunplay to ...