rpi_cpu_infoscreen

A small program to drive the pcd8544 cpu info screen on a raspberry pi

Introduction

This is a simple small program to drive a product called the RPi 1.6" CPUInfo Screen This product basically contains a Nokia 5110 screen with a pcd8544 controller.

The hardware

The pinout of this circuit is as follows

Function	PIN	WiringPI
CLK	11	0
DIN	12	1
DC	13	2
CE	15	3
Vcc	1
Gnd	6
Rst	16	4
BackLgt	7	7

Prerequisites

First install the wiringPi library if not already installed. Instructions can be found here:

http://raspberry-python.blogspot.nl/2012/09/getting-wiringpi-on-pi.html

or here

http://wiringpi.com/download-and-install/

If not already installed install build-essential with

sudo apt-get update
sudo apt-get install build-essential

git clone this code

git clone https://github.com/MichelVos/rpi_cpu_infoscreen.git

How to build

enter the directory where you installed this source Enter the src directory and type

make

After a little while you should have a program called

test_bcm8544

How to use

Now you can enter

test_bcm8544 hello world

on the command line

There is also a little script called update that fetches some more or less usefull stuff to put on your shiny new display.

Enjoy!