🎨 OLED/LCD Custom Character Creator
⚡ Output
ℹ️ About OLED/LCD Custom Character Creator
Most character LCDs (like the popular 16x2 HD44780) and small OLED displays allow you to define a limited number of custom characters. This tool provides an interactive grid where you can "draw" pixels to create icons like batteries, signal bars, or arrows.
It generates a standard C-style byte array that can be pasted directly into your Arduino, ESP-IDF, or MicroPython code.
Key Features:
- Interactive Grid: Click or drag to toggle pixels.
- Multiple Formats: Supports standard 5x8 (LCD) and 8x8 (General purpose) grids.
- Instant Code: Generates
uint8_tarrays compatible withcreateChar()and other library functions.
📖 How to use OLED/LCD Custom Character Creator
- 1. Select the grid size (5x8 for standard LCDs, 8x8 for others).
- 2. Click on the grid squares to draw your character.
- 3. The tool will instantly generate the C array at the bottom.
- 4. Copy the code and use it in your project (e.g., <code>lcd.createChar(0, customChar);</code>).
❓ Frequently Asked Questions
How many custom characters can I use?
Standard 16x2 LCDs usually allow up to 8 custom characters (indices 0-7) stored in CGRAM.
What does each byte represent?
Each byte represents one horizontal row of pixels. In a 5x8 grid, only the 5 least significant bits are used.
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