Using Web BLE to detect and get GATT information

#bluetooth #gatt #arduino Web BLE on the Chrome browser can be used to interact with a BLE device by connecting to it and then reading the GATT service and characteristics values. ⏰ TIMESTAMPS 0:00 Intro 2:24 JavaScript code to detect any BLE device on the browser 6:20 Arduino code on the nRF52 board to start advertising itself 9:13 Publish GATT characteristic UV Index every 1 second on the BLE device 12:05 JavaScript code to display the changing GATT characteristic values ‣ Some links below are affiliate. I receive a small commission at no extra cost to you. 📻 PRODUCTS MENTIONED Adafruit Feather nRF52 Bluefruit LE https://amzn.to/39WpHw8 🎩 DEMO FILES Detecting BLE devices on the browser: https://hutscape.com/tutorials/web-ble-detect Display GATT services and characteristics: https://hutscape.com/tutorials/web-ble-gatt 🔗 LINKS SHOWN Web Bluetooth Specs https://webbluetoothcg.github.io/web-bluetooth/ Can I Use browser compatibility https://caniuse.com/#feat=mdn-api_bluetooth Google Chrome developers BLE https://developers.google.com/web/updates/2015/07/interact-with-ble-devices-on-the-web Chrome samples https://googlechrome.github.io/samples/web-bluetooth/index.html Adafruit nRF52 board https://www.adafruit.com/product/3406 Adafruit nRF52 Arduino https://github.com/adafruit/Adafruit_nRF52_Arduino Sample code https://github.com/adafruit/Adafruit_nRF52_Arduino/tree/master/libraries/Bluefruit52Lib/examples BLE basic terminologies https://www.silabs.com/community/wireless/bluetooth/knowledge-base.entry.html/2018/05/30/ble_basics_masters-i4n9 Bluetooth GATT services https://www.bluetooth.com/specifications/gatt/services/ Bluetooth GATT service Environmental sensing https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Services/org.bluetooth.service.environmental_sensing.xml Bluetooth GATT characteristics https://www.bluetooth.com/specifications/gatt/characteristics/ Bluetooth UV Index GATT Characteristics https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.uv_index.xml 🔌 TOOLS USED https://hutscape.com/tools