This is a guide for using the Bluetooth LE extension (soon to be built-in) to communicate with a VEX V5 Brain.
Demo:
App Inventor Project AIA:
VEX_Bluetooth_Demo.aia (255.6 KB)
VEX Python Code: standardio.v5python - Google Drive
VEX C++ Code: standardio.v5cpp - Google Drive
Blocks:
Handshake:
Detailed break-down of the blocks: