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 uses i2s_driver_install().

Table of contents