Keypad Talking To LCD Via AT89S51

In few previous post, I showed schematic for interfacing Keypad and LCD using 8051 architecture. This blog post shows complete implementation of the interface using AT89S51 Micro-controller with programming in assembly. This is the final schematic for interfacing 4×4 Keypad with 16×2 LCD using AT89S51 : Chetan Arvind Patil Hi, I’m Chetan Arvind Patil, I […]