A replacement for the motherboard of the Intex Spa SSP-20 using an ESP32. It adds remote control trough MQTT protocol and a REST server. It also increase the reliability of the Spa (no more E9X errors)
GNU General Public License v3.0
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Defaults coefficients for the Steinhart-Hart equation and not accurate for temperature reading. #4
The value provided by the read temperature function using the Steinhart-Hart equation with default coefficients are not accurate.
I need to make a calibration to determine correct coefficients for Intex probes.