Smell sensor

What is pepoiaq2led

  • Gas resistance value read from environmental gas sensor BME680 50 counts every 5 minutes Average value 80%, temperature 10%, humidity 10% Air quality calculated from: IAQ (indoor air quality) 0 to 500 The browser is good (with numerical values) It is expressed in green)~ very_bad (red) colors.
bme680_iaq_img
  • You can turn on the 3-color LED from the GPIO output with pepoiaq2led.
  • If it is always running, it can be used as an odor sensor appliance.
  • pepoiaq2led is started via daemontools with the following command.
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    # cd /www/pepolinux
    # ln -s /usr/local/bin/pepoiaq2led iaqled
    # cd /service/
    # ln -s /www/pepolinux/iaqled iaqled
  • pepoiaq2led started by daemontools is stopped/started/confirmed by the following command.
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    # svc -d /www/pepolinux/iaqled
    # svc -u /www/pepolinux/iaqled
    # svstat /www/pepolinux/iaqled
  • Raspberry pi’s BME680 and 3-color LED detect the smell of garlic in a tube Demo video