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Multiple I2C LCD with AVR and mikroC PRO AVR

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milan.rajik

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Multiple I2C LCD with AVR and mikroC PRO AVR. I didn't post in my previous Multiple LCDs thread because this is for AVR.

This is a Multiple I2C LCD library. You can have 8 I2C LCDs on one I2C bus. I have used I2C LCDs and modules from Banggood.
 

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  • I2C LCD Li.rar
    164.4 KB · Views: 219
  • i2c_lcds.png
    i2c_lcds.png
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I am using 20x4 LCD display(JHD 204A) with PCF8574T. connecting these to ATmega16 microcontroller. I am using GCC compiler. can I use the same code?
 

You only have to make changes in library functions. That is you have to change the TWI_xyz() functions to your GCC's TWI functions.
 

@Milan.rajik.... I made changes in the code as you suggested. But still it is not working. I have attached the code. kindly Help me
 

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  • I2c_20_4.txt
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Refer to book "AVR Microcontroller and Embedded Systems using Assembly and C" by Muhammed Ali Mazidi. Page no. 646 and 647. It has i2c (TWI) C code. Make TWI functions based on it and try.
 

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