Table of Contents
ZZRCC Interface to 128x128 gray scale OLED display
Introduction
128×128 gray scale OLED based on SSD1327 is now (2021) inexpensive and readily available. This page describes the hardware and software interface to such display and provides several example programs.
Hardware Interface
The 128×128 OLED display based on SSD1327 has an I2C interface, but the pin assignments are not compatible with ZZRCC (rev0 pc borad) assignment. The ZZRCC's I2C pin assignments are SDA SCL GND VCC, while 128×128 OLED display pin assignments are SDA SCL VCC GND. An adapter that switches the power and ground pins are required to connect the 128×128 OLED display to ZZRCC's I2C connector.
Software Interface
Here are several example programs for driving the 128×128 display.
