Hot Tub/Spa & Pool Water Quality Sensor

Hardware

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!

Name		Name	Last commit message	Last commit date
Latest commit History 159 Commits
charts		charts
old		old
pdf		pdf
pictures		pictures
tflite-micro @ 154bc24		tflite-micro @ 154bc24
tflite-micro-esp-examples @ 388c558		tflite-micro-esp-examples @ 388c558
.gitattributes		.gitattributes
.gitignore		.gitignore
.gitmodules		.gitmodules
LICENSE		LICENSE
Makefile		Makefile
README.md		README.md
README.tflite.md		README.tflite.md
createFit.m		createFit.m
fc_model.ipynb		fc_model.ipynb
light_sleep.h		light_sleep.h
micro.cc		micro.cc
model_fc.h		model_fc.h
model_fc.h5		model_fc.h5
model_fc.tflite		model_fc.tflite
myfit.sfit		myfit.sfit
orp.csv		orp.csv
ppm_model.m		ppm_model.m
predict.py		predict.py
requirements.txt		requirements.txt
tb.m		tb.m
tubby.yaml		tubby.yaml
wifi_example.yaml		wifi_example.yaml