Touch / pointer
Tap anywhere in the field to place and pulse the signal. Hold and drag to move it continuously.
Throwaway harness proof
Input
Relay
Put the signal anywhere. Tap or drag on the field, or use Arrow keys / WASD. Press Space or Enter to pulse. The live badges prove each input path has fired.
Controls
One field, two ways in.
Keyboard
Use Arrow keys or WASD to move. Space or Enter pulses. Focus is returned to the field after a tap.
Safe recovery
Held input is cleared when the page loses focus or goes into the background. This proof has no audio.