Features:
-Watch the temperature and status from your browser.
-Custom text on the SPA pump display.
-Custom sound instead of just beeping. Plays a melody when starting etc.
-Basic logging to SPIFFS (on the ESP8266). See accumulated heating time etc.
-Update firmware over the air
-Simple to build. No hardware changes needed on the SPA pump. Just remove the display, disconnect the 6-pin ribbon cable and plug it into this device.
-Timer for clorine
-Heater on % of time
BOM:
-ESP8266 NodeMCU 1.0 (This version is NOT for ESP32)
-8 channel bidirectional level converter
-6 pin male header (0.1 in spacing)
-6 pin female header
-Optionally 7 x 1KOhm resistors
If you like this project, please consider a donation: PayPal.me/TLandahl
Current web interface
My device
My pump
My schematics