This demo toggles LED of LinkIt 7697 on/off from a Web browser.
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Build and upload
SimplePeripheral/SimplePeripheral.ino
sketch to LinkIt 7697 -
Visit https://smallptsai.github.io/linkit-7697-arduino-with-web-ble/SimplePeripheral/web_ble.html with Web Bluetooth API enabled browser
(screenshot taken from Chrome on Mac OS X)