Dust Sensors
Introduction
In order to measure air pollution dust sensors play an important role. They are often based on an optical system where light, scattered on dust particles is measured. I have 3 different sensors which should allow me to compare results:
- Plantower PMS5003. I found 2 manuals for this sensor:
- The Shinyei PPD42NS
- The Sharp GP2Y1010AU0F
The Plantower PMS5003 sensor
The pinout table for the PMS5003 is given below (the colors correspond to my cable and yours may well differ)
Pin number |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
signification |
nc |
nc |
reset (active low) |
Tx (3.3V level) |
Rx (3.3V level |
set pin (3.3V or open: normal working status) |
Gnd |
Vcc: 5V |
on ESP32 |
|
|
D0: GPIO 26 |
D1: GPIO 22 |
D2: GPIO 21 |
n.c. |
Gnd |
5V |
cable color |
n.c. |
n.c. |
black |
gray |
white |
violet (n.c.) |
blue |
green |
--
Uli Raich - 2021-01-28
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