M5StickC Plus

M5StickC Plus

Part of Claude Usage Stick. The original board this project was built for — a finger-sized ESP32 stick with a built-in display, battery, and two buttons. Zero soldering required.

Specs

MCU	ESP32-PICO-D4 (dual-core, WiFi)
Display	1.14" ST7789 LCD, 240×135
Battery	120 mAh internal
Buttons	Button A (front, GPIO 37) · Button B (side, GPIO 39)
Firmware	✨ Dust (v3.0.3) — display tier S (reference board)
PlatformIO env	m5stick-cplus
Buy	aliexpress.com

Flash

Easiest: open the web flasher in Chrome, Edge or Firefox, pick this board, and plug it in over USB-C.

From source, with the PlatformIO CLI:

pio run -e m5stick-cplus -t upload     # firmware

Controls

Context	Gesture	Action
PIN entry	A tap / B tap	Cycle the current digit / confirm it — or unlock from a browser instead
Screens	A tap (front button)	Next screen (dashboard → chart → news → clock)
Screens	A held ≥ 0.6 s	Flip screen 180° (saved)
Screens	B tap (side)	Cycle brightness (saved)
Screens	A+B together	Force refresh
On boot	Hold A+B	Factory reset (wipes all stored data)

Refresh happens automatically on the poll interval. Everything else — display mode, timezone, refresh interval, token rotation, WiFi — lives in the web panel.

Notes

• As the tier S reference board, the dashboard's MODELS section shows one overall-health Clawd mascot plus a 2×2 NAME UP/DOWN text grid — see Display tiers. The Dust screens (7-day chart, news, clock) are laid out for the 240×135 panel.
• Dust on this board uses the min_spiffs partition table: the app slot grows to 1.9 MB inside the 4 MB flash, and the 192 KB data partition stores the 7-day history. Updating from v2 keeps your settings.
• No PSRAM here — the flicker-free render buffer lives in internal RAM (~65 KB), which the ESP32 has room for.
• During setup, the WiFi AP password is shown on the device screen. An unreachable WiFi at boot opens a recovery AP (token, PIN and settings kept).

---

M5StickC Plus · env m5stick-cplus · All boards · Flashing · Setup and daily use · Troubleshooting