MQ 131 Sensor
hi ! Has anyone worked with mq131 sensor? Please help me, I have some doubts
https://forum.mysensors.org/topic/147/air-quality-sensor might have some useful information
Hi mfalkvidd, my doubts regarding the mq 131 sensor is whether it gives to effectively measure the gas NHx as shown in the figure the sensitivity of the datasheet ?
@AnneFR by design, it wont, the MQ are $2 value and work n accuracy for this value.
They analyze particles of a certain size, that the maker/wholesaler says he tested it for, but it does not mean it will react only to this one.
I always use the broken perfume bottle that made all my MQ (at that time 3 different running on a mega) peak because my daughter broke in a bathroom a bottle of perfume and the air was saturated with particles.
Make your tests but don't rely on a $2 sensor.
Hello Epierre, I'm working in a proyect and i'm using MQ131 sensor, but I have a problem with the Arduino Code. I've seen the page (https://github.com/empierre/arduino/blob/master/AirQuality-Multiple_Gas_Sensor1_4.ino) but I have a problem because my sensor readings are 0. if you would be so kind, could you send me only the code of sensor MQ131 ??. Thank you very much!!