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https://github.com/utkumaden/esp-idf-lcd.git
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52 lines
1.3 KiB
Markdown
52 lines
1.3 KiB
Markdown
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Generic LCD driver as a ESP32 Component
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=======================================
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This is a generic LCD driver wrapped as a ESP32 component. You are free to use
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the driver component as you wish as long as you follow the license agreement in
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[LICENSE.md](LICENSE.md).
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Usage Example
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-------------
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```c
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int lcdBusIO(lcdDriver_t *driver, bool rw, bool rs, bool en, uint8_t data)
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{
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// Implement for your own setup.
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}
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int lcdDelay(lcdDriver_t *driver, uint32_t delay)
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{
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// Implement for your own setup.
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return usleep((useconds_t)delay);
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}
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void app_main(void)
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{
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lcdDriver_t lcd = {
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.userData = NULL,
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.dimensions = {16, 2},
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.writeOnly = true,
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.fourBits = true
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};
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// Do GPIO initialization.
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// Reset GPIO pins to their default state.
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lcdBusIO(&lcd, false, false, false, 0xFF);
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lcdLoadDefaultTiming(&lcd); // Load default LCD timings.
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lcdInit(&lcd); // Initialize the LCD and driver.
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lcdDirection(&lcd, true); // Set the direction to forward.
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lcdSetDisplay(&lcd, true, false, false); // Enable display.
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lcdHome(&lcd); // Home the LCD cursor.
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lcdPutZString(&driver, "Hello World!");
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}
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```
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TO-DO
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-----
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* Implement read-write mode.
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* Implement 8-bit mode.
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