Table of Contents

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Table of Contents

Analog clock on 128x64 OLED display over I2C bus

Introduction

I2C Interface

Software

Analog clock on 128x64 OLED display over I2C bus

Introduction

Z280RC has a real-time clock and I2C bus connector. This project display the RTC values on a 128×64 OLED display.

www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_z280rc_projects_dsc_61691130.jpg

I2C Interface

A small adapter converts pins on UEXT connector to a 4-pin connector suitable for 128×64 OLED display. The pin assignment are:

UEXT pin 1 to OLED pin 4 (VCC)

UEXT pin 2 to OLED pin 3 (Ground)

UEXT pin 5 to OLED pin 2 (SCL)

UEXT pin 6 to OLED pin 1 (SDA)

Software

Software driving the analog display.

www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_z280rc_projects_clock_oled128x64_z280rc_f.jpg

YouTube video link: https://youtu.be/6nNLhokMJ5I

The software is under construction. Currently it displays the clock in accelerated time to check the graphical shape of second/minute/hour hand.