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This project is based on AMS iAQ Core C CO2 and VOC sensor that can be found on AliExpress! For Usage please read the Readme file!
![](https://github.com/HomeKidd/ESP8266-HomeKit-Air-Quality-Sensor/raw/master/images/IAQ-CORE%20C.jpg)
Features:
- Indoor CO2
- Indoor VOC density
Sensor properties:
The sensor based on technology called MEMS metal oxide sensor technology.
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It takes about 5 minutes for the sensor to heat up! First functional reading after start up appears in at least 5 minutes. So keep in mind that it takes about 5 minutes for the sensor to work properly!
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The iAQ-Core sensor module is used to measure VOC levels and provide CO2 equivalent and TVOC equivalent predictions. The data is available via I2C bus. The sensor itself is protected by a plastic cap and a filter membrane, which should NOT be removed and touched.
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I2C bus
SDA
andSCL
pins must be pulled up via 10K resistors according to iAQ Core C's datasheet!