Tutorial: ST7920 Seeeduino v4.2 / Arduino Sample Sketch Driving a 144x32 Graphic LCD

We have published a sample Arduino Sketch that shows how to drive a Sitronix ST7920 based CFAG14432D 144x32 Graphic LCD.

The sketch demonstrates writing text and sample graphics to the ST7920 controlled LCD. With just a few primitive functions, you can create some nice looking displays:


You can download the Arduino ST7920 LCD Demonstration Sketch, unzip it, and it is ready to upload.

We used a Seeeduino v4.2 . . . of course an Arduino Uno would work just as well.

Here is the overall connection: Seeeduino v4.2 + CFAG14432D + 10K pot:



These are the connections to the LCD, in SPI Mode:





Here are the connections to the Seeeduino v4.2 (connections are identical for an Arduino Uno):





Here is video showing the ST7920 sample sketch running:

This tutorial won't work as is. See Stackechange here: https://electronics.stackexchange.com/questions/328704/no-psb-pin-on-lcd. To get it to work you have to remove one of the smd resistors and solder back on the neighboring spot.