DHT over BLE UART

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In this example, the data obtained from a DHT temperature and humidity sensor are transmitted over a BLE UART service to a smartphone.

Daphne

1

Setup

Connect the DHT sensor to the Ameba board following the diagram.
2

Programming

Ensure that a compatible BLE UART app is installed on your smartphone, it is available at:
– Google Play Store:
https://play.google.com/store/apps/details?id=com.adafruit.bluefruit.le.connecta>
https://play.google.com/store/apps/details?id=de.kai_morich.serial_bluetooth_terminal

– Apple App Store:
https://apps.apple.com/us/app/bluefruit-connect/id830125974

Open the example, “Files” -> “Examples” -> “AmebaBLE” -> “DHT_over_BLEUart”.
3

Final Results

Upload the code and press the reset button on Ameba once the upload is finished.
Open the app on your smartphone, scan and connect to the Ameba board shown as “AMEBA_BLE_DEV” and choose the UART function in the app.

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