CO Sensor

DIY CO Sensor Tutorial

Materials Needed

• Microcontroller (e.g., D1 Mini) Shop
• CO Sensor Shop
• Buzzer Shop
• LEDs
• Wires
• Resistors
• 3D Printer

If powered by batteries, you'll also need a battery holder.

Wiring

For all "Ground" cables, use a hub.

• RED LED: Pin D7
• Green LED: Pin D8
• Buzzer: Pin D1
• Sensor: Pin A0 and D0

Code

• Flash the D1 Mini with MicroPython: Tutorial
• Download Thonny IDE: Download
• Connect your D1 to your PC and select it in the bottom right of the IDE.
• Open the Python file, save it on the D1, and name it main.py.

If everything is wired correctly, it should function properly now.