"Greenhouse Effect" is melting the Earth ice core every minute
and creating dangerous icebergs. By knowing the exact concentration of CO2, we
can do somehing to reduce the CO2 and to protect our Earth. For that reason,
this CO2 sensor is designed by DFRobot engineer. This is the first CO2 sensor
in Arduino market. The output voltage of the module falls as the
concentration of the CO2 increases. The potentiometer onboard is designed to
set the threshold of voltage. As long as the CO2 concentration is high enough
(voltage is lower than threshold), a digital signal (ON/OFF) will be
·It has MG-811
sensor module onboard which is highly sensitive to CO2 and less sensitive to
alcohol and CO, low humidity & temperature dependency. All components have
industrial quality for stability and reproducibility.
circuit brings the best temperature for sensor to function. Internal power
boosting to 6V for heating sensor best performance.
·This sensor has an
onboard conditioning circuit for amplifying output signal.
version of analog sensor port pin mapping has been changed as the following two
features.Please check the tips for
changing sensor cable pin mapping while using the I/O Expansion
shield. We will continue to update. For the inconvenience caused, please