Inspired by 'Water Softener Salt Level Monitor' https://www.instructables.com/Water-Softener-Salt-Level-Monitor/.
This is deigned to work with the Kinetico Water Softeners that work with salt blocks, in particular the model I have has a clear cover so the salt level can be measured without modifying the cover.
NOTE: this is still work in progress. Currently testing final version.
DUBEUYEW VL53L0X Time-of-Flight Distance Sensor Flight Measurement ToF Laser Range Finder 940nm Laser Detect Module for Arduino https://www.amazon.co.uk/dp/B0BXKD5Z4H
Solution was to use a time-of-flight sensor above each salt block and link that to ESPHome running on Home Assistant.
https://esphome.io/components/sensor/vl53l0x.html
| ESP32 Pin | Name | VL53L0X Left | VL53L0X Right |
|---|---|---|---|
| 19 | Vin 5v | ||
| 38 | GND | ||
| - | |||
| 1 | 3.3v | VIN | |
| GND | |||
| 36 | GPIO22 | SCL | |
| 33 | GPIO21 | SDA | |
| - | GPIO1 | ||
| 31 | GPIO19 | XSHUT | |
| - | |||
| 1 | 3.3v | VIN | |
| GND | |||
| 36 | GPIO22 | SCL | |
| 33 | GPIO21 | SDA | |
| - | GPIO1 | ||
| 30 | GPIO18 | XSHUT |
Waveshare ESP32-S3 Mini Development Board https://www.amazon.co.uk/dp/B0CHYHGYRH
| ESP32-S3 Mini Pin | Name | VL53L0X Left | VL53L0X Right |
|---|---|---|---|
| 1 | Vin 5v | ||
| 2 | GND | ||
| - | |||
| 3 | 3.3v | VIN | |
| GND | |||
| 6 | GPIO22 | SCL | |
| 5 | GPIO21 | SDA | |
| - | GPIO1 | ||
| 7 | GPIO19 | XSHUT | |
| - | |||
| 3 | 3.3v | VIN | |
| GND | |||
| 6 | GPIO22 | SCL | |
| 5 | GPIO21 | SDA | |
| - | GPIO1 | ||
| 4 | GPIO18 | XSHUT |
