O3 and CO sensor test

A project log for P.A.M.

Pollution Air Monitoring

pamPAM 05/06/2017 at 22:141 Comment

We received the O3 sensor! 😊

During this session, we tried both sensors (CO and O3) on a same circuit.

As the first test with the Arduino Leonardo went well last time, we decided to try on an Arduino pro micro. To connect both sensors we used a breadboard. You can see the circuit below:

For the code, we added some lines. We created a second variable for the O3 sensor. In the EEPROM memory, values from both sensors are alternating line by line.


794841410 wrote 05/09/2017 at 11:33 point

Is it the actual O3 value? Dose the mq-131 needs to be calibrated?

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