February 22, 2014

Wireless Multi-sensor soon to support a CO2 sensor

I am working on a new firmware for the Wireless Multi-sensor that will add support for a CO2-sensor from SenseAir.
Most of the code is written and it is "only" the troubleshooting left. I hope I will manage to get it to work soon. However, I will not be able to code in about a week.

The sensor will be connected on the PIR-input and will be plug-and-play. The multi-sensor will be able to tell if a PIR-sensor or a CO2-sensor has been connected.
The CO2-sensor need 4.5V-5.25V and will draw 300mA peak and 30mA in avareage. This makes it not so suitable for being battery powered with this sensor.

The CO2-sensor is able to measure CO2 levels from 0ppm to 2000ppm. Due to the oscillator frequency the readings will be limited to even readings, 400, 402, 404, etc.