yoneteru/esp32bleadvertise

Simple library for BLE advertise using ESP32 in Arduino

ESP32BleAdvertise

Simple library of a BLE advertise using ESP32 in Arduino. Notice that this a very recent work and still under tests.

Usage

void setup() {
    ble.begin("ESP32-BLE");  //sets the device name
}

void loop() {
    String str = String(random(0, 1000));
    ble.advertise(str);   // advertises a random number
    delay(1000);
}

Downloading and Installing

Click on the green button "Clone or download" and download as a zip file. In Arduino Studio, click in Sketch > Include Library > Add .ZIP Library and select the file you've just downloaded.

Debugging and visualizing data

Check out this Android app, works very well for debugging this application: https://play.google.com/store/apps/details?id=uk.co.alt236.btlescan&hl=en You will see the advertise data at "Manufacturer Specific Data".

Tips

Be aware of the limitations of the BLE broadcast in terms of the message size. Your advertise data should not be bigger than 8 bytes and the name of the device should not be bigger than 20 bytes.

TODOs

• Being able to change the UUID
• Advertise more than 8 bytes