ssd1306_i2c.c File Reference

implementations of functions for setting up, interacting with and sending commands to an ssd1306 driven screen via i2c More...

#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/i2c.h"
#include "esp_log.h"
#include "ssd1306.h"

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Macros
#define	tag   CONFIG_SSD1306_I2C_TAG
	tag for logging library More...

Functions
void	i2c_master_init (SSD1306_t *dev, int16_t sda, int16_t scl, int16_t reset)
void	i2c_init (SSD1306_t *dev, int width, int height)
void	i2c_display_image (SSD1306_t *dev, int page, int seg, uint8_t *images, int width)
void	i2c_contrast (SSD1306_t *dev, int contrast)
void	i2c_hardware_scroll (SSD1306_t *dev, ssd1306_scroll_type_t scroll)
void	i2c_hardware_scroll_line (SSD1306_t *dev, int page, ssd1306_scroll_type_t scroll)

Detailed Description

implementations of functions for setting up, interacting with and sending commands to an ssd1306 driven screen via i2c

Definition in file ssd1306_i2c.c.

Macro Definition Documentation

tag

#define tag   CONFIG_SSD1306_I2C_TAG

tag for logging library

Definition at line 41 of file ssd1306_i2c.c.

Function Documentation

i2c_contrast()

void i2c_contrast	(	SSD1306_t *	dev,
		int	contrast
	)

set the contrast of the screen

Parameters

dev	the screen device to interact with
contrast	the level of contrast

Definition at line 211 of file ssd1306_i2c.c.

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i2c_display_image()

void i2c_display_image	(	SSD1306_t *	dev,
		int	page,
		int	seg,
		uint8_t *	images,
		int	width
	)

display an image on the screen

Parameters

dev	the screen device to interact with
page	the line to display the image on
seg	the segment of the image
images	the image data to display
width	the width of the image

Definition at line 159 of file ssd1306_i2c.c.

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i2c_hardware_scroll()

void i2c_hardware_scroll	(	SSD1306_t *	dev,
		ssd1306_scroll_type_t	scroll
	)

send the command for a continues scroll via hardware

Parameters

dev	the screen device to interact with
scroll	the direction of the scroll

Definition at line 236 of file ssd1306_i2c.c.

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i2c_hardware_scroll_line()

void i2c_hardware_scroll_line	(	SSD1306_t *	dev,
		int	page,
		ssd1306_scroll_type_t	scroll
	)

send the command for a continues scroll via hardware

Parameters

dev	the screen device to interact with
page	the specific page to scroll
scroll	the direction of the scroll

Definition at line 335 of file ssd1306_i2c.c.

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i2c_init()

void i2c_init	(	SSD1306_t *	dev,
		int	width,
		int	height
	)

initialise the screen i2c session

Parameters

dev	the screen device to interact with
width	the width of the screen
height	the height of the screen

Definition at line 80 of file ssd1306_i2c.c.

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i2c_master_init()

void i2c_master_init	(	SSD1306_t *	dev,
		int16_t	sda,
		int16_t	scl,
		int16_t	reset
	)

initialise an i2c device

Parameters

dev	the device to interact with
sda	the pin to use for SDA
scl	the pin to use for SCL
reset	the reset pin to use

Definition at line 50 of file ssd1306_i2c.c.

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