Short review — Yuyang King Bluetooth app (YYK)
- Overall: Basic but functional app for configuring Yuyang King/YYK e-bike/scooter controllers. Works for core tasks but feels dated and limited.
- Key features: Connect via BLE/ERD, view real-time telemetry (voltage, current, temp, speed, trip), change controller parameters (soft start, speed limits, cruise, direction), calibration tools, firmware/version info.
- Usability: Simple UI but clunky; some users report needing multiple attempts to pair and to re-login after initial setup. English in manuals/apps can be awkward or incomplete.
- Reliability: Generally works for reading status and applying settings; initial connection (first-time pairing/password 1234) can take 20–40s. Occasional disconnects or failure to detect device reported.
- Compatibility: Android and iOS versions exist; Android requires reasonably modern OS (manuals mention >4.4). Some newer modules or firmware may require alternative apps or WeChat in certain regions.
- Documentation/support: Sparse official documentation; available user manuals and third-party guides (Scribd, vendor pages). Limited official forum/support.
- Safety/limits: App exposes many low-level parameters—use caution when changing values (risk of motor/controller damage or unsafe behavior). Make small incremental changes and test in a safe area.
- Who it’s for: Hobbyists and technicians who need direct control of YYK controllers; not ideal for casual users wanting a polished consumer app.
Ensure Bluetooth and Location services are enabled on your phone. Turn on the controller's electric door lock.
5. Using the "Full" Potential (No App Required)
Many users search for the app hoping to access the "DSP" (Digital Signal Processing) modes mentioned on the box. You often do not need an app for this.
Step 4: Install and Grant Permissions