calculations. The meaning of “duration = pulseIn(pin, LOW)” in Arduino is: <LINK_TEXT text=“https://www.arduino.cc/reference/en/lan … o/pulsein/”>https://www.arduino.cc/reference/en/language/functions/advanced-io/pulsein/</LINK_TEXT>
In addition, sensors measure a variety of particulate matter, not just PM2.5. So its result does not represent the concentration of PM2.5.
I bought grove pi + and connect it to the raspberry pi and I run the program. I just recieved Error…
What misinformation you have received? Please post your error messages.
<LINK_TEXT text=“http://wiki.seeedstudio.com/Grove-Dust_ … spberry-pi”>http://wiki.seeedstudio.com/Grove-Dust_Sensor/#play-with-raspberry-pi</LINK_TEXT> to setup and the sensor and collect the data. by the way, i see you also asked questions through the firstname.lastname@example.org. anyway, we will continue follow up through email@example.com. thanks
Seeed techsupport team