Receiver tests (S1 / S2 / S3)
Device label
Distance
30cm
50cm
Sender screen
laptop
monitor
Camera
Auto (main rear lens)
Capture
1920 (default)
1280
960 wide
Decoder
zxing-cpp WASM
jsQR (1 code only)
Crop to last code position
On
Off (full frame)
Start camera
Run camera test (S2, 30 s)
Stop
Export results
Idle
Per-config catch rate (S3)
Config
Codes seen
Caught / shown
Catch %
Decode ms avg (full / crop)
Camera log (S2)