ESP8266 SCD41 and OLED Display Project

This project demonstrates the integration of an ESP8266 microcontroller with a CIWEI SCD41 CO2 sensor and a 1.3-inch OLED I2C display. The system reads CO2 concentration, temperature, and humidity from the SCD41 sensor and displays the data on the OLED screen.

Hardware Components

• ESP8266: The microcontroller used for reading sensor data and driving the display.
• CIWEI SCD41: A CO2 sensor that also measures temperature and humidity.
• 1.3-inch OLED Display (I2C): An I2C OLED display used to show the sensor readings.

Connections

ESP8266 Pins	SCD41/OLED Pins
3V3	VCC
GND	GND
D1	SCL
D2	SDA

Note: The SCD41 sensor and the OLED display share the same I2C pins.

Installation and Usage

1. Clone this repository:

   git clone https://github.com/Superior404/sensorstation-small/
   cd sensorstation-small

2. Install necessary libraries: Ensure you have the following libraries installed in your Arduino IDE:

   • Adafruit_GFX
   • Adafruit_SSD1306
   • SCD41

3. Upload the code:

   • Connect your ESP8266 to your computer.
   • Open the code in Arduino IDE.
   • Select the correct board and port.
   • Upload the code.

4. Connect the hardware:

   • Wire the SCD41 sensor and the OLED display to the ESP8266 as per the connections table.

5. Power up:

   • Once powered, the system will start displaying CO2 concentration, temperature, and humidity readings on the OLED screen.

Images

Disclaimer

This project is provided as-is, without any warranty or guarantee of any kind. The creator of this project is not responsible for any damage that may occur to hardware or property as a result of using or misusing this project.

Acknowledgments

• Adafruit for their excellent libraries.
• Sensirion for the SCD41 sensor.