Posted March 14, 20178 yr Does anyone have any experience with Alphasense OPC N2 particle sensor and NDIR CO2 sensor with Arduino or Rpi? I tried to get data out using both Arduino and Rpi separately, but maybe i the wiring was wrong or the coding was wrong, so none of them works now. I would really appreciate any help on this subject please! For OPC N2 i found a library called py-opc but i dont know how to use it. Whenever i run the example code it came with "alpha" is not defined error comes out https://github.com/dhhagan/py-opc For CO2 it only work with the software it came with but i am trying to make a small unit so even a laptop is too big that is why i am using Arduino/Rpi. Like i said i cant get data out using Arduino. I dont know how to attach a pdf in the post otherwise i will upload the instruction of the sensor.
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