Peracek / iot-destovka

ESP8266 project for measuring water level in tank

ESP8266 Rainwater tank measurement project

This project uses an ESP8266 microcontroller to measure water level with an ultrasonic sensor and display the result on an OLED display. It also provides a GET endpoint to retrieve this information over Wi-Fi.

Hardware Requirements

• ESP8266 microcontroller (NodeMCU)
• Ultrasonic sensor (JSN-SR04T)
• OLED display (0.91" 128x32, I2C interface)

Wiring Diagram

• Ultrasonic Sensor:

  • Trigger Pin: D6
  • Echo Pin: D5

• OLED Display (I2C):

  • SDA Pin: D1
  • SCL Pin: D2

• Power source for ESP8266

Before compilation

The code uses arduino_secrets.h file to store Wi-Fi SSID and password. Use arduino_secrets.h.example template to create the file with your own SSID and password.

Usage

1. Once the code is uploaded, the ESP8266 will connect to the configured Wi-Fi network.

2. The OLED display will show the measured distance, Wi-Fi status, and signal strength.

3. You can access the data remotely by making a GET request to the following endpoint: http://destovka.local/get_level