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Repository files navigation

Hot Tub/Spa & Pool Water Quality Sensor

Hardware

Solar Panel Components

Wiring

  • Diagram
  • NOTE: You can skip the ambient sensor removal step
  • Install esphome (Tested Version: 2023.12.5)
  • copy wifi_example.yaml to wifi.yaml and edit the new file
  • Connect the board via USB and enter esphome run tubby.yaml on the command line. This will build and upload firmware to the board.
  • In Home Assistant, create a helper switch input_boolean.ota. Enable this switch, it will prevent device Deep sleep.
  • Power cycle the board, Device then enters Light sleep for 15 minutes before it shows up in Home Assistant
  • Once your esphome device is added to Home Assistant, Use Device's page, Diagnostics section to calibrate the probes:
    • ORP Cal : mV ORP calibration offset from raw ADC value. Note: ORP mV Sensor value has calibration applied
    • pH 10 Cal: mV reading from pH Raw sensor while submerged in pH 10 calibration solution
    • pH 7 Cal: mV reading from pH Raw sensor while submerged in pH 7 calibration solution
    • pH 4 Cal: mV reading from pH Raw sensor while submerged in pH 4 calibration solution
    • ppm Factor: 1 - Chlorine, 3 - Bromine
  • Turn off input_boolean.ota to allow the device to save some power.
  • Place the probes in the water, and enjoy!

Sanitizer ppm Model