I am new to AVR Programming and i have made my scope of study on 8051 family. i have made a project on UART , my MCU is connected to the PC via MAX232 but my probelem is that i have only free ports from P1.0 to P1.7 and two of P3 pins and i want to use the LCD for output so cud any one please help me little for LCD interfacing to my available pins and program for it in KEIL.
Most alphanumeric x line x y row LCD's can be driven with 4 data pins + 3 control. There are also ready made modules that can be talked to via rs232.
Check here for parallel LCD using 4bit & 3 control (check out the manuals at the bottom of the page):
or try a serial LCD, only needs one IO:
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