It raises easily at 4095 if you release some gas nearby. In order to calibrate this sensor, having a look at datasheet and at arduino library (MQUnifiedsensor) is very useful. What I understand from datasheet is when sensor is in fresh air (condition of calibration), the ratio Rair/Ro...
Data sheets- Curves and behavior for each sensor, using logarithmic graphs. Main purpose- Every sensor has high sensibility for a specific gas or material. Contributing Please readCONTRIBUTING.mdfor details on our code of conduct, and the process for submitting pull requests to us. ...
This is an open source alarm device.We need hardware:1\SolidDigi MQ2 Smoke Detector Shield for \WiFi Shield WiShield V2.0 for ://www.soliddepot.com/wifi-shield-wishield-v20-for-arduino-p-106.html When the concentration of toxic gas is high, MQ2 sends em
Data sheets- Curves and behavior for each sensor, using logarithmic graphs. Main purpose- Every sensor has high sensibility for a specific gas or material. Contributing Please readCONTRIBUTING.mdfor details on our code of conduct, and the process for submitting pull requests to us. ...