With the arrival of (LC3 codec) and the new Channel Sounding (secure distance measurement), the humble dongle is getting smarter.

In front of him sat a pristine, late-model vintage workstation. It was beautiful, powerful, and completely lobotomized. The internal Bluetooth card had fried during the Great Surge, and the proprietary OS was locked tight. No modern peripherals would pair. No data could leave.

When you flash custom firmware onto an ESP32, you need to test the BLE connection. Instead of writing a mobile app, developers use a PC dongle and a generic BLE debugging app to verify that their characteristic notify callback is working immediately.

Open the app and click "Start Scan." You will see a list of devices. Ignore your mouse and keyboard. Look for the name of your sensor (e.g., "TempProbe_01").

linkcrossmenucross-circle