The K-30 Sensor Module is a maintenance-free transmitter module intended to be built into different host devices that require CO2 monitoring data.
The compact size, low-power requirements and multiple output options are intended to facilitate integration into analog or microprocessor-based controls and equipment.
This sensor supports I2C and serial communication (RS-232) and it can be used in Arduino and Raspberry Pi projects.
Sensor ships with unsoldered connectors for I2C (or serial comm) and CO2 calibration switch.
FOR RASPBERRY PI PROJECTS:
FOR ARDUINO PROJECTS:
The sensor draws more than 300mA in operation. For Arduino projects you will need an external 5V power supply for your sensor.
For I2C connection: connect SDA, SCL and GND pins from K30 to your Arduino. Connect Arduino GND to your external power supply GND. DO NOT CONNECT ARDUINO VCC TO YOUR EXTERNAL POWER SUPPLY VCC. Here is an Arduino test sketch that uses K30 over I2C.
Here is an Arduino project that uses a K30 sensor over serial connection.
Here is the K30 data sheet.
The sensor comes pre-configured for 400ppm auto-calibration (ABC calibration). If you use the sensor in a closed environment (e.g. greenhouse), we can turn off ABC calibration on your sensor, which means that periodically you should manually perform 400ppm calibration.
The sensor comes configured with I2C address 0x68. In case you are using multiple I2C devices in your project and there is an address conflict, we can set up another I2C address for your sensor.
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