NDIR CO2 Sensor with UART/I2C and PTFE Filter
NDIR CO2 sensor with both UART and I2C interfaces and an integrated PTFE filter for airflow. Compact design with high accuracy and fast response.
Pinout
- VDDType · Power
- GNDType · Ground
- TXSCLType · I2C, UART
- RXSDAType · I2C, UART
- RDYType · Signal
| Pin | Type |
|---|---|
| VDD | Power |
| GND | Ground |
| TXSCL | I2C, UART |
| RXSDA | I2C, UART |
| RDY | Signal |
Pin details
5 connections- VDDPower
- GNDGround
- TXSCLI2C, UART
- RXSDAI2C, UART
- RDYSignal
Start wiring
I2C · Analog · UART · 3.3 – 5 V · Breakout
Waveshare lists MQ-2 for combustible gases and smoke, MQ-3 for alcohol, and MQ-135 for mixed indoor pollutants such as NH3, NOx, alcohol,…
Module pins: VDD, GND, TX/SCL, RX/SDA, RDY. Schematik maps them to your board in the app.
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