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PSoC™ 4 Forum Discussions

BrHi_3565586
Level 1
Level 1

I'm long-term embedded, but new to PSoC's.

PSoC Creator 4.2 appears to offer two relevant Component options for multi-line LCD displays:

  a)  Parallel connection to an LCD equipped with an HD44780 controller

  b)  I2C bus with an LCD equipped with a PCF2119x controller

We need to be frugal with GPIO, so we can't dedicate an entire port to an LCD. 

The market is heavily saturated with 4x20 I2C/HD44780 LCD panels, while a 4x20 LCD with I2C/PCF2119x controller seems rare.  I'm using PSoC4 CY8CKIT-049  trying to incorporate PSoC4 / 4200M in my projects, so any guidance in this regard would be sincerely appreciated.

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odissey1
Level 9
Level 9
First comment on KBA 1000 replies posted 750 replies posted

I believe that you can use community custom component to interface I2C 4x20 LCD

CharLCD_I2C Component interface for PCF8574AT / HD44780 Combo

/odissey1

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odissey1
Level 9
Level 9
First comment on KBA 1000 replies posted 750 replies posted

I believe that you can use community custom component to interface I2C 4x20 LCD

CharLCD_I2C Component interface for PCF8574AT / HD44780 Combo

/odissey1

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