Showing posts from September, 2014

Raspberry PI + YwRobot Arduino LCM1602 IIC V1 HD44780 LCD

Finally i have some time to write a new post.

Let's start:
I bought a YwRobot Arduino LCM1602 IIC V1 HD44780 LCD from amazon for 6,57 €

It has a I2C interface (so it will use just 2 cables, SDA & SCL, + 2 for VCC & GND).

I found some tutorials online, but they were for Arduino or python... NOTHING FOR C!!
So i decided to write a damn C lib for this component.
I had to cross check various codes/datasheets to understand how it works, but at the end i wrote it.
So, this is my lib! Enjoy it ;)
You can grab from the link at the end of the post.

#include "stdio.h" #include "string.h" #include "i2c.h" #include "lcd.h" #define I2C_FILE_NAME "/dev/i2c-0" const char* txt[] = { "I work on the PI", "via liblcm1602.a" }; int main(){ int i2c_dev; lcd lcd0; // 0x27 is the address of the i2c device i2c…