Some utility functions for OLED display. More...

#include <Arduino.h>
#include <U8g2lib.h>
#include "type_traits.hpp"
#include "types.h"

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Classes
class	u8x8_fake
	This is a fake class in case there's no OLED display. More...

Macros
#define	OLED_RESET -1

#define	SCREEN_ADDRESS 0x3C

Functions
void	clearDisplay ()
	Clear the display.

uint8_t *	get_tile_from_xbm (uint8_t tx, uint8_t ty, uint8_t xbm_byte_width, const unsigned char *xbm)
	Get the tile from xbm object.

void	setupOLED ()
	Setup the OLED display.

conditional< TYPE_OF_DISPLAY==DisplayType::OLED, U8X8_SSD1306_128X64_NONAME_HW_I2C, u8x8_fake >::type	u8x8 (U8X8_PIN_NONE)

void	u8x8_draw_xbm (uint8_t _tx, uint8_t _ty, uint8_t xbm_width, uint8_t xbm_height, const unsigned char *xbm)
	Draw the xbm on the OLED display.

void	updateOLED (uint16_t value)
	Update the OLED display with the given value.

void	updateWatchdog ()
	Update the watchdog on the display.

Variables
constexpr uint8_t	LOGO_HEIGHT { 64 }

constexpr uint8_t	LOGO_WIDTH { 72 }

const unsigned char logo_xbm[]	U8X8_PROGMEM

Detailed Description

Some utility functions for OLED display.

Author: Frédéric Metrich (frede.nosp@m.ric..nosp@m.metri.nosp@m.ch@l.nosp@m.ive.f.nosp@m.r)

Version: 0.1

Date: 2024-11-10

Copyright: Copyright (c) 2025

Definition in file utils_oled.h.

Macro Definition Documentation

◆ OLED_RESET

#define OLED_RESET -1

Reset pin # (or -1 if sharing Arduino reset pin)

Definition at line 24 of file utils_oled.h.

◆ SCREEN_ADDRESS

#define SCREEN_ADDRESS 0x3C

See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32

Definition at line 25 of file utils_oled.h.

Function Documentation

◆ u8x8()

conditional< TYPE_OF_DISPLAY==DisplayType::OLED, U8X8_SSD1306_128X64_NONAME_HW_I2C, u8x8_fake >::type u8x8 ( U8X8_PIN_NONE )

The OLED display object

Referenced by clearDisplay(), setupOLED(), u8x8_draw_xbm(), updateOLED(), and updateWatchdog().

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Variable Documentation

◆ LOGO_HEIGHT

uint8_t LOGO_HEIGHT { 64 }

inlineconstexpr

The Height of the object, in pixel

Definition at line 69 of file utils_oled.h.

Referenced by setupOLED().

◆ LOGO_WIDTH

uint8_t LOGO_WIDTH { 72 }

inlineconstexpr

The width of the object, in pixel

Definition at line 68 of file utils_oled.h.

Referenced by setupOLED().

◆ U8X8_PROGMEM

const unsigned char logo_xbm [] U8X8_PROGMEM

The xml object

Definition at line 71 of file utils_oled.h.

Classes

Macros

Functions

Variables