What is the difference between Parallel and Serial LCDs?
How do I tell the difference?
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What is the difference between Parallel and Serial LCDs?
How do I tell the difference?
Standard parallel LCDs usually have a 14 (or 16) pin header
and can be used in 4 or 8 bit parallel mode.
They require at least 6 PortBits on the PIC (in 4 Bit Mode)
and are easy to use with PBPs LCDOUT command.
Most serial LCDs I have seen so far are standard parallel ones with a serial "backpack".
Few others have the serial controller embedded.
It looks loke there is no standard for the connector.
The advantage of the serial LCDs is:
It requires only one single PortBit on the PIC,
but it is more expensive.
They are easy to use with PBPs SEROUT, SEROUT2 or HSEROUT commands.
regards
Ralph