System
Device settings, utilities, and the everyday tools. Each has its own page (left) with full detail.
Commands
| Tool | Command | What it does |
|---|---|---|
| Help & Manual | help · man · show | List commands, read man pages, re-show the last scan |
| Device Info | info | Chip / MACs / battery / SD — plus a GitHub QR on the ABOUT page |
| Power Save | pwrsave · sleep | Inactivity dimming, battery-aware dim, deep sleep |
| Lock Screen | lock | PIN lock, lock-on-boot, idle auto-lock |
| Undercover Mode | notes · undercover | Notes-app disguise + silent mode, passphrase, panic key |
| NES Emulator | game | Play NES ROMs from the SD card |
| Timezone | tz | Set the clock’s timezone (survives reboot) |
| Weather | weather | Local weather (GPS / WiFi-geolocation, keyless) |
| Audio & Notifications | volume · notif | Master volume + per-level notification sounds |
| SD Commands | sdinfo · sdls · cd · cat · edit · rm · sdformat | Browse and edit the SD card |
| SD Card Layout | — | Reference: where every tool stores its files |
| Diagnostics | gps · test · i2cscan · csidetect | GPS, speaker/mic/LoRa tests, I2C scan, CSI motion |
| Home Launcher | home | App-launcher home screen |
| Custom Splash | — | Replace the boot image with your own PNG |
Two tiny extras: clear / clr wipes the output area and resets the prompt; MATRIX runs a Matrix digital-rain animation (q to exit).
Trackball & keyboard
At the prompt the trackball moves the cursor and browses history; in apps it navigates and selects. Full reference: Keyboard.
Status bar icons
| Icon | Colours | Meaning |
|---|---|---|
[ANQA] | Cyan | Firmware name (with + on T-Deck Plus) |
| Shield | Grey / Green ✓ / Yellow / Red | wguard: off / no threats / warnings / critical |
| Satellite | Grey / Yellow / Green | GPS: off / searching / fixed |
| ᛒ | Grey / Cyan | Bluetooth: off / active |
| Battery | Red / Yellow / Green | Charge level |
Hardware note:
tone()doesn’t work on this board — all audio usesi2s_driver_install().