SSD1306/SH1106 components for ESP8266_RTOS_SDK. This is a direct port from extras/ssd1306 component from esp-open-rtos.
However, only i2s protocol is supported. If I have SPI version, I'll try to port and test it.
You can use this module along with ESP8266-RTOS-FONTS to display text to oled display.
- espressif/ESP8266_RTOS_SDK v3.2+ (esp-idf style)
- ssd1306/sh1106 oled display with i2s protocol
Clone this into your project components folder.
#include <stdio.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <driver/gpio.h>
#include <ssd1306/ssd1306.h>
#include <driver/i2c.h>
#include <esp_err.h>
#define SCL_PIN 5
#define SDA_PIN 4
#define DISPLAY_WIDTH 128
#define DISPLAY_HEIGHT 64
void app_main()
{
// init i2s
int i2c_master_port = I2C_NUM_0;
i2c_config_t conf;
conf.mode = I2C_MODE_MASTER;
conf.sda_io_num = SDA_PIN;
conf.sda_pullup_en = 1;
conf.scl_io_num = SCL_PIN;
conf.scl_pullup_en = 1;
conf.clk_stretch_tick = 300;
ESP_ERROR_CHECK(i2c_driver_install(i2c_master_port, conf.mode));
ESP_ERROR_CHECK(i2c_param_config(i2c_master_port, &conf));
// init ssd1306
ssd1306_t dev = {
.i2c_port = i2c_master_port,
.i2c_addr = SSD1306_I2C_ADDR_0,
.screen = SSD1306_SCREEN, // or SH1106_SCREEN
.width = DISPLAY_WIDTH,
.height = DISPLAY_HEIGHT};
ssd1306_init(&dev);
}