When detecting ozone should the voltage increase or decrease?
I bought a sensor "SainSmart MQ131 Gas Sensor Ozone Module For Arduino " https://www.sainsmart.com/sainsmart-mq131-gas-sensor-ozone-module-for-arduino-uno-mega2560-r3-raspberry-pi.html
For the moment i just measure the voltage (tension) : without ozone at the begining it was more than 4V, 3 hours later 3,3V and 24 h after about 2 V. More than 24h (but less than 48h) I produce ozone generating sparks with an induction coil...and the voltage is going down!
Is it logical? I thought the voltage will increase...
Thank's i will try again, as if i have to wate because i will not be home for 4 days.
I have the same results than https://forum.arduino.cc/index.php?topic=447393.0: Anyways, whenever I try testing the sensor by exposing it to some ozone producing equipment, the value decreases, instead of increasing as if he like me heated the sensor less than 48h!
Hii,
Ostaquet, I used your GitHub code, and I upload that in my board but its only showing " Calibration in progress..... " for a long time, do I have to leave it for 48 hours to calibrate or there is something wrong with my board or wiring.
please, ans.