ESP32 CO2 Monitor

A Rust-based air quality monitoring system using ESP32 microcontroller, SCD41 CO2 sensor, and SSD1306 OLED display.

Features

• Measures CO2, temperature, and humidity using Sensirion SCD41 sensor
• Displays readings on a SSD1306 OLED display
• Written in Rust using esp-idf framework
• Periodic measurements with configurable interval
• Error handling and display

Hardware Requirements

• ESP32 development board
• Sensirion SCD41 CO2 sensor
• SSD1306 OLED display (128x64)
• I2C connections:
  • SDA: GPIO8
  • SCL: GPIO9

Building and Flashing

1. Install Rust and ESP-IDF toolchain
2. Clone the repository:

   git clone https://github.com/arietis/esp32-co2-monitor.git
   cd esp32-co2-monitor

3. Build the project:

   cargo build

4. Flash to ESP32:

   cargo run

Configuration

The default measurement interval is 5 seconds. You can modify this in src/main.rs:

const MEASUREMENT_INTERVAL_MS: u32 = 5000;

License

This project is licensed under the MIT License - see the LICENSE file for details.