Pin 5 R/W goes to D5 on the Arduino board. Pin 4 RS goes to D4 on the Arduino board. If you look around on the net you will find a number of different ways of connecting this graphic display to Arduino like this 4 digital pin configuration.įirst I changed the 3 wire constructor code in the Arduino IDE sketch from: Pin 6 E goes to D10 on the Arduino board.Īnd like I did in previous step, I uploaded the sketch.Īt first the display was a bit funky from changing the digital pins but once the sketch was uploaded the graphic LCD module started rotating through the different programmed screens. Pin 5 R/W goes to D9 on the Arduino board. Pin 4 RS goes to D8 on the Arduino board. Description: Details: ST7920 serial control routine 1. To show any image on Graphical LCD, we need HEX code of that image. U8GLIB_ST7920_128X64_1X u8g(10, 9, 8) // ENABLE, RW, RS Search - st7920 serial CodeBus is the largest source code and program resource store in internet. Interface communication mode can be switched between parallel and serial using PSB. This time I wanted to find out if I could put the LCD controls where I wanted so I changed the 3 wire constructor code from:
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