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Learning without distractions

Keypad LCD interfacing with PIC16f877A Microcontroller

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a learning room 52 tutorials here
Electronics

4×3 keypad and 16×2 LCD interfacing with PIC 16f877a -8bit micro controller using MPLAB IDE – HITECH ANSI C compiler. Hardware Simulation with Proteus simulation tool with clear hardware connections.
Embedded C programming for PIC16f877a Microcontroller.