connectpcf8833 - olikraus/ucglib GitHub Wiki
The Linksprinte Shield can be connected directly to the Arduino Uno. Level shifters and power supply are part of the shield.
The wiring is fixed by the shield:
| Constructor argument | Arduino pin number |
|---|---|
| sclk | 13 |
| data | 11 |
| cd | n.a. |
| cs | 9 |
| reset | 8 |
The PCF8833 does not have a command/data input line. Instead this information is part of the 9-bit SPI transfer. The Ucglib constructor looks like this:
Ucglib_PCF8833_16x132x132_SWSPI ucg(/*sclk=*/ 13, /*data=*/ 11, /*cs=*/ 9, /*reset=*/ 8);
Here is A simple "Hello World" example:
#include <SPI.h>
#include "Ucglib.h"
Ucglib_PCF8833_16x132x132_SWSPI ucg(/*sclk=*/ 13, /*data=*/ 11, /*cs=*/ 9, /*reset=*/ 8);
void setup(void) {
delay(1000);
ucg.begin();
ucg.clearScreen();
}
void loop(void) {
ucg.setFont(ucg_font_ncenR14r);
ucg.setPrintPos(0,25);
ucg.setColor(255, 255, 255);
ucg.print("Hello World!");
delay(500);
}