Raspberry-pcd8544
pcd8544 Command Line Tool for Raspberry Pi / Orange Pi
Raspberry-pcd8544
pcd8544(NOKIA5110) Command Line Tool for Raspberry Pi / Orange Pi
You can operate from command line.
Command line parameters:
+1 String : String for #1 line(with External 4X8 Font) +2 String : String for #2 line(with External 4X8 Font) +3 String : String for #3 line(with External 4X8 Font) +4 String : String for #4 line(with External 4X8 Font) +5 String : String for #5 line(with External 4X8 Font) +6 String : String for #6 line(with External 4X8 Font) +a String : String for #1 line(with Internal 6X8 Font) +b String : String for #2 line(with Internal 6X8 Font) +c String : String for #3 line(with Internal 6X8 Font) +d String : String for #4 line(with Internal 6X8 Font) +e String : String for #5 line(with Internal 6X8 Font) +f String : String for #6 line(with Internal 6X8 Font) -1 : delete #1 line -2 : delete #2 line -3 : delete #3 line -4 : delete #4 line -5 : delete #5 line -6 : delete #6 line +L : Scroll Up 1Line -L : Scroll Down 1Line P1 n : Set start colum n to line#1 P2 n : Set start colum n to line#2 P3 n : Set start colum n to line#3 P4 n : Set start colum n to line#4 P5 n : Set start colum n to line#5 P6 n : Set start colum n to line#6 r : remove all string s : show display c num : set contrast to num
You can use within script. #!/bin/bash ./nokia r ./nokia +1 "ABCDEFG" ./nokia +2 "abcdefg" ./nokia +3 "1234567" ./nokia +d "ABCDEFG" ./nokia +e "abcdefg" ./nokia +f "1234567" sudo ./nokia s
Wire connection
| NOKIA5110 | --- | RPi/OPi | |
|---|---|---|---|
| 1 RST | --- | GPIO23 | (Pin#16) |
| 2 CE | --- | SPI CE0 | (Pin#24) |
| 3 DC | --- | GPIO24 | (PIn#18) |
| 4 DIN | --- | SPI MOSI | (Pin#19) |
| 5 CLK | --- | SPI SCLK | (Pin#23) |
| 6 VCC | --- | 3.3V | |
| 7 BL | --- | 3.3V/GND(*) | |
| 8 GND | --- | GND |
(*)There are two module of GND and 3.3V. With BLUE module, if you supplies 3.3V to backlight pin, a backlight lights up. With RED module, if you connects a backlight pin to GND, a backlight lights up.
Software requirement
WiringPi Library
How to install
git clone https://github.com/nopnop2002/Raspberry-pcd8544
cd Raspberry-pcd8544
cc -o nokia nokia.c fontx.c pcd8544.c -lwiringPi -lpthread
bash ./test.sh
Line#1-#3 : External 4X8 Font Line#5-#6 : Internal 6X8 Font
RaspberryPi HAT
// pin setup
#define _sclk 0
#define _din 1
#define _dc 2
#define _cs 3
#define _rst 4