Getting Started With Bluetooth Low Energy: Tool... Access

: Controls advertising and connections (how devices find each other).

: Use this in tandem with a sniffer to see raw data packets, timing, and connection handshakes. Getting Started with Bluetooth Low Energy: Tool...

: Includes specialized apps like "Bluetooth Low Energy" and "RSSID Viewer." : Controls advertising and connections (how devices find

a heartbeat or battery-level example to your development board. Open nRF Connect on your phone to scan for the device. Connect and explore the GATT table to see the UUIDs. Subscribe to notifications to see data update in real-time. and read/write characteristics.

: The "Swiss Army Knife" for BLE. It allows you to scan, connect, and read/write characteristics.