- Extract design tokens to firmware/src/theme.h (THEME_BG, THEME_PANEL,
THEME_TEXT, etc.); ui.cpp aliases COL_* to the THEME_* tokens
- Splash container + canvas COL_EMPTY now use THEME_BG / 0x0000 instead
of the hardcoded 0x0f0f0f / 0x10A2 dark grey
- tools/convert_to_c.js maps "transparent" palette entries to 0x0000
(true black) so regenerated splash_animations.h matches the new bg
- Re-regenerate splash_animations.h
- Convert logo to RGB565A8 (alpha plane) so it composites against any
background — no more grey halo around the upper-left logo on screens
where the bg differs from the previous baked-in 0x18E3 color
UX overhaul:
- Drop the Controller screen entirely (touch zones, swipe gestures, HID
gesture engine, four icon arrays, hand icon)
- Two persistent screens (Usage, Bluetooth) cycled by the middle PWR
button; splash becomes a touch-toggled welcome animation
- Left button (GPIO 0): hold to send Space (Claude Code voice-mode PTT)
- Right button (GPIO 18): press to send Shift+Tab (mode toggle)
- Middle button on splash cycles animations instead of screens
- Remove USB plug/unplug auto-switch (Controller was the unplug target)
- Hide battery indicator on splash when in LOW state — it's noisy over
the pixel-art animations
Implementation:
- Delete firmware/src/hid.{cpp,h} and touch.{cpp,h}; their roles fold
into main.cpp button handlers and LVGL CLICKED events respectively
- splash_get_root() exposes the splash container so ui.cpp can attach
a click handler for the dismiss-on-tap behavior
- Tap detection uses LVGL's built-in LV_EVENT_CLICKED with event
bubbling on the inner panels — debouncing is handled by LVGL
- On Bluetooth screen, only the Reset Bluetooth zone is clickable;
taps elsewhere are no-ops (no conflict with splash toggle)
Docs:
- README: drop Controller from screens table, rewrite Physical buttons
table, remove Gesture controls section
- CLAUDE.md: update file map, button assignments, drop gesture refs
Each gesture hint now wraps its gesture in white (COL_TEXT) and the
action in dim gray (COL_DIM), stacked vertically. Replaces the prior
single-line "Gesture: action" format that wrapped at arbitrary points.
- Drop "of current session" trailing text from the percentage label so
it no longer overlaps the right-aligned reset countdown
- Shrink hint font from styrene_24 to styrene_20 and enable WRAP mode
with center alignment so each hint fits the narrow center zone
- Shift all three titles by +16 from screen mid so they center between
the logo (right edge ~100) and battery icon (left edge ~412)
- Bluetooth screen: increase Reset zone height 70 -> 110 for breathing
room around the trash icon + label
- Bluetooth screen: drop the "Bluetooth Low Energy" footer
- Drop "Claude" prefix from titles, center all three
- Replace verbose "Current Session" / "Current Week" labels with rounded
pills above the bar; reset countdown moves below the bar
- Extend bar to fill panel inner width (was 8px short)
- Symmetric vertical pill placement within panel
- Spinner: per-frame hold times + ping-pong indexing, modeled on
Claude Code's Cavalry triangle oscillator (turn-around frames hold
~2x longer)
- Bottom spinner re-centered between weekly panel and screen edge
- screenshot.sh: 480x320 -> 480x480 for the new panel
- CLAUDE.md: document screenshot.sh + temporary boot-screen swap as
the standard self-QA workflow for UI changes
- Cache invalidation: drop ~/.config/claude-usage-monitor/ble-address and remove
the dead MAC from bluez on connect failure, so swapping ESP boards no longer
pins the daemon to a stale factory MAC
- Scan robustness: pick first matching candidate (head -1), sanity-check cached
content for valid MAC format, handle multiple Claude Controllers in bluez
- 5s tick + 60s poll: inner loop wakes every 5s for fast disconnect detection
while keeping Anthropic API cadence at one minute
- Refresh-request channel: new GATT characteristic ...0004 NOTIFY, firmware
fires once in onSubscribe when has_received_data is false; daemon subscribes
via setsid'd dbus-monitor pipeline (process group cleanup avoids the
bash-wait-on-job hang we hit on disconnect)
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Full hardware swap from Panlee SC01 Plus (480×320 IPS) to Waveshare 2.16"
square AMOLED (480×480, CO5300 + CST9220 + AXP2101 + QMI8658). Library
stack moves to Arduino_GFX, SensorLib, XPowersLib on the pioarduino
platform 55.03.38-1 (Arduino Core 3.x).
UI:
- 4 screens (splash, usage, controller, bluetooth) with 3-button physical
navigation: GPIO 0 = prev, AXP PKEY = cycle, GPIO 18 = next.
- IMU-driven 90° auto-rotation. CO5300 can't rotate via MADCTL, so flush
callback does CPU strip-rotation in PARTIAL render mode. Rotation
transitions use AMOLED brightness flash (instant black → redraw → ramp).
- Battery indicator (Lucide icons) in upper-right, RGB565A8 alpha so it
blends over the splash animations.
- USB plugged/unplugged auto-switches between Usage and Controller
screens (suppressed while on splash).
- Fonts and icons re-scaled ~1.9× for the higher-DPI panel; 20px margins
to clear rounded corners.
Splash:
- 13 × 20×20 pixel-art creature animations sourced from
claudepix.vercel.app via tools/scrape_claudepix.js (scraper handles
both PRESET creature-engine and standalone FRAMES+PAL formats).
tools/convert_to_c.js emits firmware/src/splash_animations.h.
Attribution preserved in README and the generated header.
Tooling:
- tools/png_to_lvgl.js converts alpha PNGs to LVGL RGB565A8 (planar
layout, with --tint to colorize Lucide black-on-transparent sources).
- tools/scrape_claudepix.js, tools/convert_to_c.js for the splash
pipeline.
Docs:
- New worktree CLAUDE.md with hardware pin map, file inventory, build
commands, and the 8 critical gotchas (CO5300 rotation, OPI PSRAM,
pioarduino requirement, LVGL 9 font patching, centralized touch read,
even-aligned flush regions, touch swap/mirror values, RGB565A8 layout).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Move all communication from USB to BLE. The device now advertises as
"Claude Controller" and acts as both a BLE HID keyboard (for touch
gestures) and a GATT data server (for usage updates from the daemon).
- Add NimBLE-Arduino BLE module with custom GATT service + HID keyboard
- Add third screen (Bluetooth) with connection status, MAC, reset button
- Rewrite daemon in bash using bluetoothctl/busctl for BLE GATT writes
- Add screenshot capture via LVGL snapshot over serial
- Remove TinyUSB mode — normal pio upload works again
- Update README with BLE architecture, screenshots, gesture docs
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Two screens switchable by tapping the Claude logo:
- Usage screen: session and weekly utilization with animation
- Controller screen: touch gesture HID keyboard controls
Controller screen features:
- Lucide icons for ESC, DEL, left/right arrow buttons
- Gestures panel with hand icon header and hint list
- Session usage bar with reset timer at bottom
- Hold anywhere for voice dictation (space key)
- Hidden Ctrl+Space on logo hold
Also fixes stuck modifier keys with releaseAll() after each keystroke.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The SC01 Plus now acts as a composite USB device (CDC serial + HID keyboard).
Touch gestures on the screen send keystrokes to the computer:
- Swipe up/down: arrow keys
- Swipe right: Enter
- Swipe left: Shift+Tab (change mode in Claude Code)
- Double-tap logo: Ctrl+Space (voice mode)
- Tap and hold: Space (held while touching)
Gesture-to-key mapping is defined as a simple config table in hid.cpp.
Touch detection uses a state machine with configurable thresholds in touch.cpp.
Switches to TinyUSB composite mode (ARDUINO_USB_MODE=0). Flashing now
requires flash.sh which handles the DTR/RTS bootloader reset.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Physical desk monitor that displays Claude Code usage limits (5-hour session
and 7-day weekly utilization) on an ESP32-S3 touchscreen via USB serial.
Firmware: LVGL 9 dashboard with LovyanGFX on SC01 Plus, Anthropic brand
colors and custom fonts (Tiempos, Styrene B, DejaVu Sans Mono), Claude
spinner animation with rotating status words.
Daemon: Pure bash script that reads the Claude Code OAuth token, makes a
minimal Haiku API call, extracts usage from rate-limit response headers,
and sends JSON to the ESP32 over serial. Uses inotifywait for instant
USB plug/unplug detection.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
