waterMonitor

Monitor water flow and filter efficiency

---

Project maintained by brianinnes Hosted on GitHub Pages — Theme by mattgraham

Hardware components and schematic

This project requires the following components:

• ESP32 DevKitC
• Flow meter ??????
• 2 X DFROBOT Gravity TDS Meter V1.0
• DS18b20 temperature sensor in waterproof package
• 4.7K resistor to put between 3.3 and data pins on DS18b20 sensor

The following connections should be made:

• GPIO 34 : data pin for TDS sensor AFTER the filter
• GPIO 33 : data pin for TDS sensor BEFORE the filter
• GPIO 27 : Flow meter data pin
• GPIO 26 : +’ve pin for TDS sensor AFTER the filter
• GPIO 25 : +’ve pin for TDS sensor BEFORE the filter
• GPIO 14 : data pin for the temperature sensor (+’ve and -‘ve connectors should go to 3.3V and Gnd pins of ESP board)