Hello,
I want to connect arduino uno with display to existing processoor on device on i2c between processor and lcd driver PCF8576. With analyzer i can see comunication on i2c, adress of existing lcd is 0x38, but i dont know, how take data and send to display on arduino. please help!
The PCF8576 only controls 160 segments.
I guess that it is used with custom LCD panels. e.g. custom icons, custom 7-segment digits, custom blink, ...
You can easily capture the I2C traffic with a Logic Analyser.
Identify which particular icon or segment is addressed.
Your Uno simply has to do the I2C capture and decode.
You can log the traffic to Serial or SD card.
Or you draw the segment shape on a TFT. i.e. replicate the custom LCD on your own graphic display.
David.
Dear friend,
Thank you for your reply!
Can you tell me where to find some example code for:
"Your Uno simply has to do the I2C capture and decode.
You can log the traffic to Serial or SD card."?
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