Wingbend Balance User Manual

This web app reads angle data from the left-wing and right-wing BLE sensors, then displays the left-right difference.

Supported Environment

• Android: Chrome is recommended.
• Desktop: Chrome or Microsoft Edge is recommended.
• iPhone/iPad: Safari and Chrome on iOS do not support Web Bluetooth natively.

How to Connect

1. Turn on the sensor.
2. Open the app from an HTTPS URL. GitHub Pages is OK.
3. Press Connect Left and select Wingbend-L.
4. Press Connect Right and select Wingbend-R.
5. Place both wings in the reference position and press Zero Adjust.

Main Features

• Real-time left and right wing angle display
• Automatic difference judgement: OK / WARN / NG
• Zero adjust
• Sensor direction reverse: Reverse L / Reverse R
• CSV export
• Installable PWA experience

Zero Adjust

Set both wings to the reference position, then press Zero Adjust. Small mounting angle errors are corrected in the app.

Power

For the prototype, a physical battery ON/OFF switch is recommended. Auto-off can be added in the next stage, but safety and stable operation should be confirmed first.

Notes

BLE access requires browser permission. If connection fails, check that Bluetooth is on and the sensor is not already connected to another app. If the PCB gets hot, immediately disconnect the battery and inspect the wiring.