esp32-i2c-ssd1306-oled

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esp32-i2c-ssd1306-oled

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A library for esp32 i2c oled ssd1306

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- - fonts.h
  - i2c.hpp
  - ssd1306.hpp
- component.mk
- font_glcd_5x7.c
- font_tahoma_8pt.c
- fonts.c
- i2c.cpp
- main.cpp
- ssd1306.cpp
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README.md
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#ESP32 I2C OLED SSD1306 library for esp-idf

This is a library of i2c oled ssd1306 for [esp-idf](https://github.com/espressif/esp-idf).

Code modified from [ESP-I2C-OLED](https://github.com/baoshi/ESP-I2C-OLED).

I changed the code style into C++. So you can easily use multiple devices by create different objects. I also changed the hardware i2c driver into a software one. So you can use any two GPIO pins as SDA and SCL.

**IMPORTANT:** If you want to compile it, be sure that you add **"COMPONENT_LDFLAGS += -lstdc++"** in Makefile.

Pay attention that OLED class has two different constructors. One with default I2C address 0x78, but in the other you can set manual address.

Remember to call **refresh** after you draw something new on the screen.

External RESET pin function is not implemented yet.

**NOTICE1:** If you want to use pure C method, please turn to branch [pure-c](https://github.com/imxieyi/esp32-i2c-ssd1306-oled/tree/pure-c)

**NOTICE2:** I'm using C++ style string, if you don't want that, you can uncomment related code blocks in ssd1306.cpp and ssd1306.hpp.

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