Serial 2.2" LCD display

This topic covers simple way to interface with LCD display. For this tutorial I am using cheap (under 20$) serial 2.2" display.

Connection is more than simple - no soldering or electronics skills are required. See picture:

• LCD_SCL → GPIO7
• LCD_SDA → GPIO13
• LCD_CS → GPIO9
• LCD_RST → GPIO11
• LCD_RS → GPIO12

Full sources as a package can be found here

I have uploaded short video where you can see clearing screen to white, then to black and writing couple of text lines.

Just put sources to Carambola build package directory and execute

make package/lcd_1_8_in/compile V=99

After this, login to your Carambola and execute

scp test@192.168.0.104:/home/test/carambola_2012-03-25/bin/ramips/packages/lcd_1_8_in_1_ramips.ipk  /tmp
cd /tmp
opkg install lcd_1_8_in_1_ramips.ipk
lcd_1_8_in

You will see picture.