Connected Air Sensor:
The purpose of this device is to collect PM sensor data to aid in air quality analysis. Users wear the device and go about their day, while it collects data written to the onboard datalogger while simultaneously pushing the real-time output to an app on their cellular device.
Using Bluetooth Low Energy, this data is transmitted with very low power consumption and helps extend the battery life of the device.
IoT enables real time collection of data that may help users identify if they are in an area with high particulate matter counts that could pose harmful.
This project uses:
- – 3.7V Li-Po Battery
- – Arduino Pro Trinket 5V microcontroller
- – Adafruit voltage regulator
- – Adafruit BLE module
- – Adafruit Ultimate GPS module
- – SparkFun OpenLog data logger
The casing for the device is printed in PLA for strength and low cost design:
Solar Powered Alternative:
Using a microcontroller and PM 2.5 sensor, we can collect outside PM 1, 2.5, and 10 data and transfer it directly to a cloud service for easy analysis. SparkFun Data was utilized for tests conducted with the solar powered sensor and data was then visualized at Analog.io.
This project uses:
- – 12V Battery
- – Teensy 3.1 Microcontroller
- – Solar Panel Control Unit (to charge the battery and power the device
- – Voltage Sensor (to gauge battery life)
- – WiFi chip (for sending data to ‘SparkFun Data’ service)
The setup for charging the battery via solar can be adapted to almost any project and further improved.