====== Serial 2.2" LCD display ======

===== About =====


This topic covers simple way to interface with LCD display. For this tutorial I am using cheap (under 20$) serial [[http://iteadstudio.com/store/index.php?main_page=product_info&cPath=57_58&products_id=527&zenid=j1rn45111ej75o6m45emg2f6r0|2.2" display]].

{{:cimg1727.jpg?nolink&|}}

===== Connection =====

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

{{:cimg1731_r.jpg?direct&500|}}

  * LCD_SCL -> GPIO7
  * LCD_SDA -> GPIO13
  * LCD_CS  -> GPIO9
  * LCD_RST -> GPIO11
  * LCD_RS  -> GPIO12

===== Source =====

Full sources as a package can be found [[http://www.8devices.com/files/lcd_1_8_in.zip|here]]

===== Performance =====

I have uploaded short [[http://www.youtube.com/watch?v=H186pDXkdRM|video]] where you can see clearing screen to white, then to black and writing couple of text lines.

===== Linux =====

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.