Differences

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--- projects:lcd_module [2012/07/01 11:50]
elger
+++ projects:lcd_module [2016/11/16 13:06] (current)
@@ Line 6: / Line 6: @@
 {{ :projects:sainsmart_iic-i2c-twi_serial_2004_20x4_lcd_back.png?200|}}
-My display has a PCB on the back labled "YwRobot Arduino LCM1602 IICV1" but it appears it is the same as the the one of [[http://www.sainsmart.com/sainsmart-iic-i2c-twi-serial-2004-20x4-lcd-module-shield-for-arduino-uno-mega-r3.html|sainsmart.com]]
+My display has a PCB on the back labled "YwRobot Arduino LCM1602 IIC V1" but it appears it is the same as the the one of [[http://www.sainsmart.com/sainsmart-iic-i2c-twi-serial-2004-20x4-lcd-module-shield-for-arduino-uno-mega-r3.html|sainsmart.com]]
 The only difference is the text on the back.
-There were a few (simple) steps in getting the display to work, you just need to know what they are.
+There were a few (simple) steps in getting the display to work, you just need to know what they are. The display is basically a HD44780 LCD display and an PCF8574 I2C-to-parrallel IC
+===== PIC Library =====
+The code on this page is for an Arduino (compatible) microcontroller, however there is a PIC microcontroller library available too.
+I have never gotten around to working with a PIC, but I received an email from //MDP// wrote a library for the LCD display to be used on a PIC18F4550
+He has been kind enough to share this with the world, and he send me his code. You can download everything {{:projects:lcd_module:sainsmart_i2c_adapter_files.zip|here}}
+//MDP// also wrote a more universal library for the PIC, one that is also compatible with the adapter labled "mjkdz". You can download the files {{:projects:lcd_module:lcd_pic_i2c_generic_driver-10.zip|here}}
+===== A demo =====
 But first, here is a demo of the LCD display
@@ Line 32: / Line 44: @@
 ===== The software =====
-<page is being edited>
+You need to remove the standard liquidcrystal library, rename the old folder to something else. You can read [[http://www.arduino.cc/playground/Code/Library|here]] how to replace a library.
+Next you need to install the liquidcrystal library that works. I found mine here:
+[[https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads| fmalpartida/new-liquidcrystal]]
+And there is also lots more information on the library [[https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/Home|here]]
+I used their examples and came up with this little demo:
-<file cpp i2c_display.ino>
+<code cpp i2c_display.ino>
 /*
     ** Example Arduino sketch for SainSmart I2C LCD2004 adapter for HD44780 LCD screens
@@ Line 40: / Line 58: @@
  ** The LCD2004 module appears to be identical to one marketed by YwRobot
  **
- ** Address pins 0,1 & 2 are all permenantly tied high so the address is fixed at 0x27
+ ** Address pins 0,1 & 2 are all permanently tied high so the address is fixed at 0x27
  **
  ** Written for and tested with Arduino 1.0
@@ Line 402: / Line 420: @@
 }
-</file>
+</code>