Keyboard input — ERGS Player element reference

LIVE WEB PLAYER

See it respond.

The same raylib runtime, compiled to WebAssembly. Load this example, inject MQTT messages and watch its published events.

Loading WebAssembly…

MQTT I/O

Waiting for runtime…

The browser requires a user action before the scene is loaded. Click Load demo scene first. MQTT is emulated and never leaves this page. Shaders are disabled in the web build; GPIO is hardware-only.

Non-visual keyboard input. Emits ON on press and OFF on release, supports actions, and can drive an interactive dialog choice.

Configuration

Field	Description
`type`	`keypress`
`key`	Letter, digit, arrow, `SPACE`, `ENTER`, `ESC`, `F1`…`F12`, `KP_0`…`KP_9`
`on_press`, `on_release`	Action chains

Copy-and-paste JSON

json

{
  "type": "keypress",
  "id": "start_key",
  "key": "ENTER",
  "on_press": "interview_dialog.open('dialog-example.json')",
  "on_release": "status_text.set('Key released')"
}

MQTT

text

Published topic: ergs/rpi01/status/start_key
Press payload:   ON
Release payload: OFF

Keypress is an output source; it is not simulated through an MQTT input command.