![]() The SPI protocol is faster than the I2C protocol but it uses more pins: SCK, SDA, CS (chip select: active low), D/C (data/command) and a rest pin (RST). ![]() The I2C protocol needs only 2 lines: SDA (serial data) and SCK (serial clock), an additional line is required which is a reset line (RST). In this topic I’m going to show how to use I2C and SPI protocols with this display. The SSD1306 display contains a driver chip with the same name (SSD1306), it can communicate with the master device (microcontroller, microprocessor …) over I2C protocol, SPI protocol or 8-bit parallel protocol. ![]() Also we’ll show how to simulate the SSD1306 display using Proteus ISIS. The SSD1306 is a monochrome display which means it has only one color (white, blue, yellow …). This topic shows how to interface Arduino UNO board with SSD1306 OLED display (128×64 pixel).
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