Water Sensor Reader for Flipper Zero

June 2, 2026 ยท View on GitHub

Water Sensor Reader is a simple Flipper Zero application that reads an analog water sensor connected to a GPIO pin and displays its values in real time. The app shows both the raw ADC value and the corresponding voltage in millivolts, along with a visual progress bar.

Wiring

Connect the analog output of the water sensor to pin C0 of the Flipper Zero. The sensor is read on ADC channel 1.

Features

  • Reads analog input from a water sensor on GPIO pin C0.
  • Displays RAW ADC values (0 to 4095 for the 12-bit ADC).
  • Converts raw values to millivolts (mV).
  • Shows a progress bar to visualize the sensor level.
  • Updates in real time and exits with the Back button.
  • Simple GUI built on the Flipper Zero viewport.

Usage

  1. Connect the water sensor to pin C0 and ground.
  2. Launch Water Sensor reader from the GPIO apps menu.
  3. Read the live RAW value, voltage in mV, and the level bar.
  4. Press Back to exit.

Author

Made by Matvey Strelov.