Senseair S8 for Python

Python module for reading CO2 concentration from a Senseair S8 sensor connected to a Raspberry Pi

Connecting the Senseair S8 to your Raspberry Pi

Hook up the Senseair S8 to your Raspberry Pi using the following schematic:

Image source: http://co2meters.com/Documentation/AppNotes/AN168-S8-raspberry-pi-uart.pdf

Module installation

pip install senseair-s8

Usage

As a module:

from senseair_s8 import SenseairS8

senseair_s8 = SenseairS8()
print(senseair_s8.co2())

From the command line:

python -m senseair_s8

Troubleshooting

• This module expects the sensor to be connected to port /dev/ttyS0. It was only tested using that port, but you can override this settings when initialising the sensor:

sensair_s8 = SenseairS8(port='/dev/ttyS0')

• Out of the box, /dev/ttyS0 is disabled on a Raspberry Pi, resulting in a permission denied-error. You can enable it by:
  1. Run sudo raspi-config
  2. Select Interfacting options
  3. Select P6 Serial
  4. Select No for login console
  5. Select Yes for serial port hardware
  6. OK, Finish, Reboot - Yes