Password Based Door Open System Using LPC2148

In this tutorial we are going to see Password Based Door Open System Using LPC2148 Project. Prerequisites Before we will start i would suggest you to read these topics. Then only you can understand this strongly. If you already know, please go ahead. LPC2148 GPIO Tutorial LCD Interfacing with LPC2148 Keypad Interfacing with LPC2148 DC Motor Interfacing … Read more

8051 – RTC Interfacing (Alarm Clock)

In this project, we are going to see RTC Interfacing with 8051. Before that we should know about the RTC (DS1307) operations. Let’s start. Prerequisites I²C Basics I²C Advanced LCD Interfacing with 8051 8051 I2C Tutorial Keypad Interfacing with 8051 RTC (DS1307) Introduction The DS1307 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) … Read more

PIC16F877A – Keypad Interfacing

8051 Keypad Interfacing

In this tutorial we will learn Keypad Interfacing with PIC16F877A. Prerequisites Matrix Keypad Operation LCD Interfacing (4 Bit Mode) with PIC16F877A Components Required 4×4 Keypad PIC16F877A Microcontroller Keypad Interfacing with PIC16F877A Circuit Diagram LCD: RS – Port D.2 RW – GND EN – Port D.3 Data Lines – Port D.4 – Port D.7 Keypad: Row1 … Read more

LPC2148 – Keypad Interfacing

Keypad interfacing with LPC2148

Hi all…. Today we will see Keypad interfacing with LPC2148. Before that i would suggest you to go through this link to know about the Keypad characteristics.  Let’s start… Suggest To Read Matrix Keypad Operation Serial Communication Components Required 4×4 Keypad or 3×4 Keypad (Here we will discuss both codes) LPC2148 Microcontroller Keypad interfacing with LPC2148 4×4 Matrix … Read more

8051 – Keypad Interfacing

8051 Keypad Interfacing

Hi all…. Today we will see 8051 Keypad Interfacing. Before that i would suggest you to go through this link to know about the Keypad characteristics. And i assumed that you know LCD interfacing. Other wise you can see that LCD interfacing tutorials in our website. Let’s start… 8051 Keypad Interfacing. Components Required 4×4 Keypad … Read more

Matrix Keypad Introduction

Introduction Most of the applications of embedded systems require keypads to take the user inputs, especially in case where an application requires more number of keys. With simple architecture and easy interfacing procedure, matrix keypads are replacing normal push-buttons by offering more inputs to the user with the lesser I/O pins. As a Human Machine Interface (HMI) … Read more