I2C + HD44780

[Sergejs]

Hello, is it available to make soft for connecting HD44780 display to MCU via I2C using PCF8574T board?

[BenR]

Hello,

I beleive we support this already.

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[medelec35]

There is also the LCD Backpack.

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I use that a lot with displays that have a PCF8574 io expander board on the back.
There is a demo file on the wiki.

[Sergejs]

I want buy this only. How can I contact Mr. Alfie for talking about payment?

[AlfieD]

Hi, Please email me on alfie.dobson@matrixtsl.com and let me know what i can help with. Thanks

[Sergejs]

Hi, Please email me on alfie.dobson@matrixtsl.com and let me know what i can help with. Thanks

Hi, I sent you question on email.

[Sergejs]

By the way, there is no command PrintFloat variable. In usual connection there is for HD44780. But in combination with I2C I can not print float variable on the LCD screen. Can any resolve this or may I open special topic for this question?

[chipfryer27]

Hi

You could use the FloatToString$ in a calculation then print the result. I think Ben and Medelec have posted much on this subject so a quick search might be of help.

Below x= the resulting String / y = floating point variable / z = how many decimal points to include

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Hope this helps