A small program to drive the pcd8544 cpu info screen on a raspberry pi
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 pinout of this circuit is as follows
| Function | PIN | GPIO |
|---|---|---|
| CLK | 11 | 17 |
| DIN | 12 | 18 |
| DC | 13 | 27 |
| CE/CS | 15 | 22 |
| Vcc | 1 | |
| Gnd | 6 | |
| Rst | 16 | 23 |
| BackLgt | 7 | 4 |
Install go compiler because the program write with golang
git clone this code
git clone https://github.com/sndnvaps/pcd8544.git
enter the directory where you installed this source Enter the src directory and type
go build -o rpi_cpuinfo_screen
After a little while you should have a program called
rpi_cpuinfo_screen
Now you can enter
rpi_cpuinfo_screen
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!