68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
/*
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* https://docs.espressif.com/projects/esp-idf/en/v5.3.2/esp32/api-reference/peripherals/lcd/index.html#functional-overview
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*
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* Implementing the interface draw to an LCD using various interface modes.
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* I2C interface mode is SSD1306
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* SPI interface mode is ST7789
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* I80 interface mode is NT35510 or ST7789
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*
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* Actually, I think any driver can be used with any interface mode
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* Along with additional third party drivers via the component manager
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* https://github.com/espressif/esp-idf/tree/0d6099ec533c4b647fb7a7b0b8942bc7aeb82f90/examples/peripherals/lcd/spi_lcd_touch#spi-lcd-and-touch-panel-example
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*/
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#ifndef SSD1306_H
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#define SSD1306_H
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#include <esp_lcd_panel_ssd1306.h>
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#include "panel_device.h"
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// According to SSD1306 datasheet
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// https://www.digikey.com/en/products/detail/winstar-display/WEA012864DWPP3N00003/20533255
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// Bit number used to represent command and parameter
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#define SCREEN_WIDTH 128 // OLED display width, in pixels.
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#define SCREEN_HEIGHT 64 // OLED display height, in pixels.
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#define LCD_H_RES SCREEN_WIDTH
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#define LCD_V_RES SCREEN_HEIGHT
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#define I2C_HW_ADDR 0x3C
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#define LCD_PIXEL_CLOCK_HZ (400 * 1000)
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#define LCD_CMD_BITS 8
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#define LCD_PARAM_BITS 8
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class SSD1306 : public IPanelDevice {
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public:
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// Constructors allow overriding ssd1306 config.
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explicit SSD1306(I2C &i2c) :
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SSD1306(i2c, {.height = SCREEN_HEIGHT}) { }
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SSD1306(I2C &i2c,
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esp_lcd_panel_ssd1306_config_t config,
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int width = SCREEN_WIDTH,
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int height = SCREEN_HEIGHT
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);
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virtual ~SSD1306() = default;
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void *vendor_config() override
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{
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return &ssd1306_config_;
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}
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// The configuration structure specific to the SSD1306.
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esp_lcd_panel_ssd1306_config_t ssd1306_config_;
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// For LV_COLOR_FORMAT_I1 we need an extra buffer to hold the converted data.
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static uint8_t oled_buffer_[LCD_H_RES * LCD_V_RES / 8];
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private:
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void init_panel(esp_lcd_panel_dev_config_t &config,
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esp_lcd_panel_io_handle_t io,
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esp_lcd_panel_handle_t &panel) override
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{
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ESP_ERROR_CHECK(esp_lcd_new_panel_ssd1306(io, &config, &panel));
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}
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};
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#endif // SSD1306_H
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