Online Particulate Matter Sensor (no temp and Humid)

thingiverse

All credits go to Chris for this fantastic project: https://www.thingiverse.com/TheChrisP I made a small modification to make it show all three particle sizes, eliminating the need for a temperature sensor hole in the model. For original instructions, please refer to Chris's thing: https://www.thingiverse.com/thing:2320020 As an Arduino newbie, I'd like to share my experience and maybe help others who are just starting out. Downloading and installing the Arduino IDE is essential (https://www.arduino.cc/en/Main/Software). First, let's tackle programming. You need to add the ESP8266 Arduino extension to your IDE: Start Arduino and open the Preferences window. Enter arduino.esp8266.com/stable/package_esp8266com_index.json into the Additional Board Manager URLs field. You can enter multiple URLs, separated by commas. Next, open the Boards Manager from Tools > Board menu and install the ESP8266 platform. Select your ESP8266 board from Tools > Board menu after installation. Load the sketch file into IDE. Pressing the compile button will result in a bunch of errors because the IDE is missing some libraries. You need to add all missing libs via Sketch->Include Library->Manage Library. Search for each reported missing lib until all libraries are installed and there are no longer any missing libraries. Now you should be able to send the code to the ESP2866. Regarding components, I made a mistake by reversing the PMS5003 color code (red and black were not power). Pin 1 is actually on the right. In my case, the coloring of the schematic on GitHub was correct; it was just reversed for me. Eventually, I modified the sketch to display all three particle values instead of temperature and humidity readings.