Operating a 128x64 OLED LCD Display with Raspberry Pi

1. Enabling I2C on the Raspberry PI

$ sudo raspi-config

→ Advanced Options → I2C → Yes

After setting, restart the device

There are various methods depending on the model and the time period, so choose the one that suits your setup.

Reference: `Enabling I2C on recent Raspberry Pis - Rabbit Note <http://rabbit-note.com/2015/02/08/raspberry-pi-i2c-activation/>`_

Also, install i2c-tools

$ sudo apt-get install i2c-tools

2. Connect and Verify the LCD Display

2-1. Run i2cdetect with the display not connected

$ sudo i2cdetect -y 1
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- UU -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- UU -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

2-2. Connect the display. There are various images showing which pins to use; for instance, refer to this:

Using I2C on the Raspberry Pi: Using a Temperature Sensor - Neko Punch!

http://d.hatena.ne.jp/penkoba/20131215/1387119945

2-3. Run i2cdetect after connecting the display

$ sudo i2cdetect -y 1
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- UU -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- UU 3c -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

It is recognized at 3c.

3. Install wiringPi

$ git clone git://git.drogon.net/wiringPi
$ ./build

Testing

$ gpio -v
$ gpio readall

4. Install u8glib

Build and use the commonly used Arduino library on the Raspberry Pi

Issue 171 - u8glib - Port U8glib to Raspberry Pi - Universal Graphics Library for 8 Bit Embedded Systems - Google Project Hosting

https://code.google.com/p/u8glib/issues/detail?id=171

Refer to the page above.

$ cd /tmp/
$ wget http://dl.bintray.com/olikraus/u8glib/u8glib_arduino_v1.16.zip
$ unzip u8glib_arduino_v1.16.zip

Get the patch posted on the site below (the same page as above)

https://code.google.com/p/u8glib/issues/detail?id=171

Get the #24 patch u8glib_1.16.RaspberryPi.patch.

Copy the URL and use wget on the Raspberry Pi, or download it on your PC and send it via sftp etc.

Save it as /tmp/u8glib_1.16.RaspberryPi.patch.

$ cd /tmp/U8glib/
$ patch -p1 < /tmp/u8glib_1.16.RaspberryPi.patch
$ make
$ sudo cp libU8glib.a /usr/lib
$ sudo cp U8glib.h /usr/include
$ sudo mkdir /usr/include/utility
$ sudo cp /tmp/U8glib/utility/u8g.h /usr/include/utility/

5. Run the Demo

$ cd /tmp/U8glib/examples/U8gLogo
$ vim Makefile

# INCLUDE=/opt/U8glib/include
INCLUDE=/tmp/U8glib/include

↑ Rewrite the INCLUDE line

$ make
$ ./logo

6. Using it with Python...

Code writing in progress