[PIC] GLCD interfacing with pic16f1527 using port expander

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nicsjasani

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hi all,
i am trying to interfacing GLCD with pic16f1527 using port expander .
i have sent data to the port expander but i did not get it on lcd . So how can i done it ? anybody can help me??
 

Hi,

You need to say what Glcd and Port Expander you are using plus your program code to show what you are doing.

Find it strange that you are using a port expander with a that Pic chip which has so many I/O pins ?
Most modern glcds use 4 wires using I2c or SPI protocol.
 

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