Converting 16x2 LCD to I2C (SOLVED)

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for solution thread, please navigate to:
http://forum.arduino.cc/index.php?topic=170817.msg1271707#msg1271707

***please note solution work micro, pcf8475p , 16x2 display (similar amd1602k sparkfun)***

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morning again!

i have sparkfun adm1602k 16x2 display. project (using arduino micro) has been getting more , more complex , need save digital pins. quick google revealed can use io expander use 2 analog connections. bought pfc8574p. there seems 3 ways hook lcd chip. use transistor dont... i've tried three...

anyway, downloaded liquidcrystal_i2c library, , set board schematic attached. missing... i'm using "hello world" i2c sketch.

see attachments.  thanks again help.

i'm sure of real experts here have better answer mine.

in experience, trying did frustrating , couldn't work.

i purchased serial pack , worked me... uses 1 pin rx , 1 tx.

another direction buy mega. have seen them under $20 on ebay...


Arduino Forum > Using Arduino > Displays > Converting 16x2 LCD to I2C (SOLVED)


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