CO2 Ampel

CO2 traffic light / meter (Case 2-2021)

The device contains a Heltec LoRa WiFi v2 as microcontroller combined with a Bluedot BME680 air quality sensor and a MH-Z19b CO2 sensor from Winsen.
Sensor data is transmitted via TTN to Thingspeak for visual processing.
Additionally, 8 neopixels and a touch button are used to change the view of the measurement data on the display.

This is the current status of the implementation of a project idea from WestVision Hackerton 3/2020, where the focus was on the development of IOT in combination with LoRaWAN. At that time our approach was not corona but learning success ;-)

In the further development a modular housing design was created with which different microcontrollers and sensors can be combined and by using housing attachments the visual representation of the measured values (via display, meter displays and/or traffic lights) can be changed.

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CO2 Ampel / Met