How to Use

1 Create a Room with the Start Phone

2 Join the Room with the Goal Phone

Scan the QR code with your camera to join the room — no registration required. Once the two devices (host and client) are connected, “DataChannel connected” will appear, and a red detection line will automatically be displayed on the screen for sprint timing.

3 Set Up the Phones

Fix the start phone at the starting point and the goal phone at the finish line. You can choose between two start methods: “Line Start (automatic start)” and “Sound Start (pistol sound start).” With Line Start, the timer automatically begins the moment the runner crosses the start line. With Sound Start, a pistol sound plays from the start device, and the runner begins when they hear the sound.

4 Test the Setup

Pass through the starting point once to confirm that measurement starts. If it doesn't respond, adjust the distance and angle.

5 Official Measurement

Reset the time -> Measurement starts when passing the start -> Record is saved when passing the goal.

⚠️ Important Notes on Measurement

During measurement, please ensure that no one other than the runner crosses the measurement line. This service is designed to detect and measure the passage of only one runner at a time. If anyone else crosses the line, inaccurate measurement results may occur.

Tips

Please set up the camera so that it clearly captures the runner.
Please conduct the measurement in a location with a stable network connection.