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HUB75-Pixel-Art-Display
A WIFI enabled LED Pixel Art Display based on HUB75 panels driven by the ESP32
mzashhC++★ 98⑂ 12 forksMITupdated 1 year ago
git clone https://github.com/mzashh/HUB75-Pixel-Art-Display.gitmzashh/HUB75-Pixel-Art-DisplayREADME.mdfork it — it’s yours
HUB75 Pixel Art Display
A Wi-Fi-enabled LED Pixel Art Display based on HUB75E panels, powered by an ESP32.
Note: The colors are much more vibrant in person, and the flickering only appears on camera.
Changelog
Version 0.4.5a (Major Update)
- Added an NTP Clock.
- Added Scrolling Custom Text.
- Clock and text colors can now be changed via the WebUI.
- Text font and scroll speed are configurable.
- Added toggles for:
- GIF display
- Clock
- Scrolling text
- Added a toggle for GIF looping.
Version 0.2.5a
- Switched the file system to LittleFS.
Features
- Wi-Fi Connectivity: On startup, the panel connects to the Wi-Fi network and displays the firmware version, IP address, RSSI, and Wi-Fi SSID for 4 seconds.
- GIF Playback: Plays GIF files stored in the ESP32's SPI Flash.
- NTP Clock: Displays the current time (configurable GMT and DST offsets in the firmware).
- WebUI:
- Upload, delete, download, and play GIF files.
- Control brightness via a slider.
- Authentication functionality for secure access.
- Remote rebooting of the ESP32.
- Custom Scrolling Text: Replace the clock with custom scrolling text.
- WebUI Customization:
- Change text and clock colors.
- Adjust text scroll speed and size.
- Playback Toggles:
- Enable or disable GIF playback, clock, or scrolling text individually.
- Toggle GIF looping to either loop a single GIF or play all stored GIFs sequentially.
Planned Features
These features are tentative and may not be implemented due to time constraints or motivation.
- Proper date system
- Weather display
- Additional clock types and faces
- Canvas drawing functionality
- Stopwatch/Timer/Pomodoro modes
Hardware Requirements
- HUB75 Panel: Compatible with the ESP32-HUB75-MatrixPanel-DMA library. By default, a 64x64 1/32 scan panel is supported.
- ESP32 Board: ESP32, ESP32-S2, or ESP32-S3.
Pin Configuration
Note: GPIO 34+ on the ESP32 are input-only. GPIO 5, 23, 18, and 19 are reserved for future SD card support.
| Panel | ESP32 GPIO Pin |
|---|---|
| R1 | 25 |
| G1 | 26 |
| B1 | 27 |
| R2 | 14 |
| G2 | 12 |
| B2 | 13 |
| A | 22 |
| B | 32 |
| C | 33 |
| D | 17 |
| E | 21 |
| OE | 15 |
| CLK | 16 |
| LAT | 4 |
Firmware
Development Tools
- Arduino IDE (v1.8.19) or PlatformIO.
Required Libraries
Configuration
- Wi-Fi:
- Change the Wi-Fi SSID and password in
firmware.ino(only 2.4GHz networks are supported).
- Change the Wi-Fi SSID and password in
- WebUI:
- Update the WebUI username and password in
firmware.ino.
- Update the WebUI username and password in
- Brightness:
- Set the default brightness in
firmware.ino(range: 0–255).
- Set the default brightness in
- Panel Resolution:
- Use other resolution panels as per the examples in the ESP32-HUB75-MatrixPanel-DMA library.
- Authentication:
- Disable authentication by changing
falsetotrueon line 258 inwebserver.ino.
- Disable authentication by changing
Case and Assembly
For smooth assembly and answers to most questions, refer to the project documentation on my website.
- 3D Printable Files for the Case and the Diffuser:
- Project Documentation and Assembly:
Credits
- GIF Playback: Based on examples from the ESP32-HUB75-MatrixPanel-DMA library.
- WebUI: Inspired by the ESP32 Async WebServer File Upload Example.
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