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urban_sensing_air_quality's Introduction

The repo for urban sensing proejct

Prerequisite

  • python-serial

Using PMS5003 (air quality sensor by the company plantower)

  • PM10, PM2.5 etc.
  • CUSP has Raspberry pi 3 so that we used it.
  • Learned GPIO pin, serial port from raspberry pi documentation.
  • VVC(5V), GND(Ground), TXD, RXD (pin usage)

Issue

  • Can't get the data from air quality sensor
  • Problem was bluetooth adapter which is recognized as /dev/ttyAMA0

Solution

  • Disabled bluetooth adapter (refer to Raspberry pi Documentation)

Step

$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo apt-get dist-upgrade
$ sudo rpi-update

$ sudo nano /boot/config.txt
# In ther text file, add
dtoverlay=pi3-miniart-bt
$ sudo systemctl disable hciuart
$ sudo raspi-config
# option 5 -> option 6 disable
$ reboot # reboot raspberry pi
# To check tty
$ dmesg | grep tty

Code to read data

Reference

PS

# If you wanna use the local ethernet cable to connect raspberry pi from your machine, following command will give you the ip address of raspberry pi.
$ ping raspberrypi.local

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