Other than that, we have a JST connector for VCC, ground, and output data. The above image shows how the sensor looks when you tear it down. ... //Connect dust sensor to Arduino A0 pin #define ...

The actual sensor can be connected to this module by using a JST XH connector. It has three pins, VCC, ground, and output. ... Connect the VCC of the sensor to Arduino 5v, then connect ground to ...

To understand how to use the library, the easiest way is to use the examples included in the library. To open an example, start the Arduino IDE, and select menu "File" > "Examples" > "arduino-ess-v0.5 ...