wordclock_esp8266
Software for a Wordclock based on ESP8266 and Neopixel LEDs with PONG, TETRIS, SNAKE game modes
Home Assistant integration for GeekMagic displays (SmallTV Pro/Ultra). Server-side rendering, no device flashing requir…
git clone https://github.com/adrienbrault/geekmagic-hacs.gitadrienbrault/geekmagic-hacsA Home Assistant custom integration for GeekMagic displays (SmallTV Pro, Ultra, and similar ESP8266/ESP32-based devices).
How it works: This integration renders dashboard images directly in Home Assistant using Python/Pillow and pushes them to your GeekMagic device over HTTP. It supports the known stock firmware profiles and the newer SD_PRO-style firmware used by some Ultra units.
Early Software: This project is in active development. Expect bugs, breaking changes, and incomplete features. The API and configuration format may change between versions.
Vibe Coded: This integration was largely vibe-coded with AI assistance. While functional, it may contain unconventional patterns or rough edges. Contributions and feedback welcome!
I have a GeekMagic Ultra with ESP8266, which has limited possibilities for flashing with ESPHome. Instead of fighting the hardware, this integration takes a different approach: render everything server-side and push images to the device.
Special thanks to:
Binary sensors display human-readable states and state-specific icons based on their device_class. Icons are sourced from Home Assistant's official icon definitions.
Entities like lights, switches, and fans show different icons based on their state (on/off).
| Widget | 1x1 | 1x2 | 2x1 | 2x2 | 2x3 | 3x3 |
|---|---|---|---|---|---|---|
| Gauge (Bar) | ![]() |
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| Gauge (Ring) | ![]() |
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| Gauge (Arc) | ![]() |
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| Entity (Icon) | ||||||
| Entity (Plain) | ![]() |
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| Clock | ![]() |
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| Text | ![]() |
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| Progress | ![]() |
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| Weather | ![]() |
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| Status | ![]() |
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| Chart | ![]() |
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| Candlestick | ![]() |
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| Climate | ![]() |
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| Attribute List | ![]() |
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Display OHLC (Open/High/Low/Close) candlestick charts from any numeric entity's history. Configurable candle intervals (1 hour, 4 hours, 1 day) and count.
Choose from 11 built-in themes that go beyond just colors — they apply a complete design system: typography (rounded Nunito font on most themes), spacing, shapes, tinted gauge tracks, and visual effects.
The default watchOS theme is inspired by Apple's watchOS Human Interface Guidelines: true-black background, Apple system colors (red/orange/yellow/green/mint/teal/cyan/blue/indigo/purple/pink), opacity-based text hierarchy, tinted Activity-ring style gauges, and no card chrome — widgets float on the background for maximum information density.
| watchOS | Classic | Minimal | Neon | Retro | Soft |
|---|---|---|---|---|---|
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| Default — Apple watchOS HIG-inspired | Subtle card chrome, system colors | Sharp, monochrome | Cyberpunk with glow | Terminal scanlines | Cozy, very rounded |
| Ocean | Sunset | Forest | Light | Candy |
|---|---|---|---|---|
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| Deep blue, nautical | Warm coral/orange | Natural earth tones | Clean white background | Playful pastels |
custom_components/geekmagic to your Home Assistant's custom_components folderAfter installation, a GeekMagic item appears in your sidebar.
Create and manage display views:
The editor provides a live preview and widget configuration:
Assign views to your GeekMagic devices:
Each device exposes entities for brightness, refresh interval, mode selection, and status:
Each GeekMagic device creates the following entities for control and monitoring:
| Entity | Type | Description |
|---|---|---|
number.geekmagic_brightness |
Number | Display brightness (0-100%) |
number.geekmagic_refresh_interval |
Number | Update interval (5-300 seconds) |
number.geekmagic_cycle_interval |
Number | View cycle interval (0 = manual only) |
select.geekmagic_mode |
Select | Device mode (Custom Views, Clock, Weather, System Info) |
select.geekmagic_current_view |
Select | Currently displayed view (when in Custom mode) |
switch.geekmagic_active |
Switch | Enable/disable the display (sleep/wake) |
switch.geekmagic_view_cycling |
Switch | Enable/disable automatic view cycling |
| Entity | Type | Description |
|---|---|---|
sensor.geekmagic_status |
Sensor | Connection status with device attributes |
sensor.geekmagic_storage_used |
Sensor | Device storage usage percentage |
sensor.geekmagic_storage_free |
Sensor | Free storage in KB |
| Entity | Type | Description |
|---|---|---|
button.geekmagic_refresh |
Button | Force immediate display refresh |
button.geekmagic_next_screen |
Button | Switch to next view in rotation |
button.geekmagic_previous_screen |
Button | Switch to previous view in rotation |
The Active switch (switch.geekmagic_active) lets you pause the display when no one is in the room. When turned off, the screen dims to zero and all rendering stops (saving CPU cycles and flash memory writes). When turned on, brightness is restored and the display refreshes immediately.
Wire it to any HA presence sensor, motion sensor, or media player via an automation:
automation:
- alias: "GeekMagic: sleep when room is empty"
trigger:
- platform: state
entity_id: binary_sensor.office_presence
to: "off"
for: "00:05:00" # optional: wait 5 min before sleeping
action:
- action: switch.turn_off
target:
entity_id: switch.geekmagic_smalltv_active
- alias: "GeekMagic: wake when room is occupied"
trigger:
- platform: state
entity_id: binary_sensor.office_presence
to: "on"
action:
- action: switch.turn_on
target:
entity_id: switch.geekmagic_smalltv_active
Any HA entity works as a trigger — presence sensors, media players, motion sensors, person trackers, etc.
geekmagic.notifyShows a temporary notification on the display, interrupting the normal view rotation.
| Parameter | Required | Default | Description |
|---|---|---|---|
device_id |
Yes | - | GeekMagic device(s) to show the notification on |
message |
No | - | Notification text. If omitted, the image/icon displays fullscreen |
icon |
No | - | MDI icon to display (e.g., mdi:bell, mdi:alert) |
image |
No | - | Entity for image source (camera.*, image.*, or media_player.*) |
duration |
No | 10 | How long to show the notification (1-300 seconds) |
theme |
No | watchos | Visual theme for the notification |
Simple text notification:
service: geekmagic.notify data: device_id: "abc123" message: "Motion detected!" icon: mdi:motion-sensor
Doorbell with camera snapshot:
service: geekmagic.notify data: device_id: "abc123" message: "Someone at the door" image: camera.front_door duration: 30
Fullscreen camera (no message):
service: geekmagic.notify data: device_id: "abc123" image: camera.front_door duration: 15
Now playing notification:
service: geekmagic.notify data: device_id: "abc123" message: "Now Playing" image: media_player.spotify theme: neon
| Type | Description |
|---|---|
gauge |
Bar, ring, or arc gauge (style: bar/ring/arc) |
entity |
Any HA entity value (with optional icon, attribute) |
attribute_list |
Display multiple entity attributes as key-value pairs |
climate |
Thermostat/HVAC (show_target, show_humidity, show_mode) |
clock |
Time and date |
text |
Static or dynamic text |
progress |
Goal tracking with progress bar |
weather |
Weather with forecast |
status |
Binary sensor indicator |
chart |
Sparkline from entity history |
candlestick |
OHLC candlestick chart from entity history (candle_interval, candle_count, show_value) |
camera |
Camera snapshot display |
media |
Now playing from media player |
multi_progress |
Multiple progress items |
status_list |
Multiple status indicators |
| Layout | Slots | Description |
|---|---|---|
fullscreen |
1 | Single widget fills entire display (no padding) |
grid_2x2 |
4 | 2x2 grid of equal widgets |
grid_2x3 |
6 | 2 rows, 3 columns |
grid_3x2 |
6 | 3 rows, 2 columns |
grid_3x3 |
9 | 3x3 grid of equal widgets |
split_horizontal |
2 | Left/right side by side |
split_vertical |
2 | Top/bottom stacked |
split_h_1_2 |
2 | Narrow left (1/3), wide right (2/3) |
split_h_2_1 |
2 | Wide left (2/3), narrow right (1/3) |
three_column |
3 | 3 vertical columns |
three_row |
3 | 3 horizontal rows |
hero |
4 | Large hero + 3 footer widgets |
hero_simple |
2 | Large hero + 1 footer widget |
hero_corner_tl |
6 | 2x2 hero top-left + 4 small widgets |
hero_corner_tr |
6 | 2x2 hero top-right + 4 small widgets |
hero_corner_bl |
6 | 2x2 hero bottom-left + 4 small widgets |
hero_corner_br |
6 | 2x2 hero bottom-right + 4 small widgets |
sidebar_left |
4 | Wide left panel + 3 right rows |
sidebar_right |
4 | 3 left rows + wide right panel |
GeekMagic devices with the same case/name can ship with very different firmware. The integration detects the firmware/API profile first, then uses the matching upload and display flow.
| Device / firmware profile | Detection | Render support | Notes |
|---|---|---|---|
| SmallTV Ultra stock firmware | /app.json or /v.json with Ultra model |
Full | Uses /doUpload?dir=/image/, /set?theme=3, and /set?img=/image/{filename}. |
| SmallTV-PRO stock firmware | /v.json with GeekMagic SmallTV-PRO, or /.sys/app.json |
Full, with managed album | Uses /doUpload?dir=/image/ and /set?theme=4. Picture mode is an album slideshow, so the integration can manage the album and keep only dashboard.jpg. |
| Ultra / SD_PRO community-style firmware | /theme/list and /photo/list |
Supported through Photo slideshow | This firmware is very different from stock Ultra firmware. It uses /config, /api/set?key=..., /photo/upload, /photo/toggle, and /theme/list; it does not support direct /set?img= image selection. |
Other GeekMagic devices may work if they expose one of those API profiles. If a device has the same product name but a different web UI or endpoint set, run the repo-local probe command from the development section below and attach the output to an issue.
SmallTV-PRO note: Pro Picture mode is an album slideshow. During Pro setup,
Home Assistant asks for confirmation to manage that album. When enabled, the
integration removes other pictures from the Pro album and keeps one managed
dashboard.jpg image updated so the display cannot rotate away from the HA
dashboard. After setup, manually select the Picture app on the device; the
integration does not press the Pro menu buttons automatically because the
firmware does not expose enough menu state to do that reliably.
For users interested in open-source firmware, @bvweerd has created an ESP8266 firmware that implements the same API:
If the integration doesn't work with your device or firmware version, you can generate a per-device reference report yourself and either attach it to a bug report or open a PR to add the device to docs/devices/. The repo ships with a Claude Code skill (.claude/skills/geekmagic-reverse-engineer/) that crawls your device, watches it run in a headless browser, and produces a redacted Markdown report describing every page, endpoint, parameter, and payload — purely from what the device tells us about itself.
To run it from a clone of this repo, point Claude Code at your device and ask:
"Use the geekmagic-reverse-engineer skill against
<DEVICE-IP>and produce a PR-ready report."
The skill handles privacy by default (credentials, SSIDs, IP addresses, MAC addresses are auto-redacted; review the output and scrub anything else before sharing). Existing captures live under docs/devices/ and are good examples of the format.
uv sync # Install dependencies uv run pytest # Run tests uv run ruff check . # Lint uv run pre-commit run --all-files # Run all checks uv run python scripts/generate_samples.py # Generate samples
You can smoke-test the device client from a repo checkout before installing into Home Assistant:
uv run python scripts/device_cli.py probe <DEVICE-IP> uv run python scripts/device_cli.py render-test <DEVICE-IP> --dashboard clock uv run python scripts/device_cli.py upload-file <DEVICE-IP> path/to/image.jpg uv run python scripts/device_cli.py brightness <DEVICE-IP> get uv run python scripts/device_cli.py brightness <DEVICE-IP> set 80
probe only reads from the device. render-test, upload-file, and brightness set change the display.
The render/upload smoke tests back up readable device settings first, hold the
test image on screen for 15 seconds, then restore the original settings. Use
--hold-seconds N to change the viewing window. --takeover-album can make Pro
Picture mode deterministic by backing up the existing album, clearing it for the
test, and restoring it afterward. If a Pro test image uploads but is not visible,
manually select the Picture app on the device, or add --try-enter-picture to
let the CLI press the Pro menu buttons during a live smoke test. Home Assistant
does not press those buttons automatically. If your workstation has multiple
routes to the device subnet, add --bind-address LOCAL-IP to the CLI command to
force the source interface used for both aiohttp and raw firmware fallback
requests.
MIT
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Software for a Wordclock based on ESP8266 and Neopixel LEDs with PONG, TETRIS, SNAKE game modes
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