You're already familiar with Proteus and its usage. It's really interesting to simulate your circuit before hardware implementation because it's just a matter of few clicks here and there before you can see the output. Sometimes there are too many connections in your circuit which kind of looks ugly. This article is about using BUS WIRE in Proteus which saves you some space in the design area and the circuit also looks presentable rather than a mess of connections.
A beginner's guide to 8051 microcontroller with special emphasis on programming and hardware implementation.
Saturday 18 January 2014
Tuesday 14 January 2014
8051 KEYPAD INTERFACE
When we talk about input to the microcontroller unit, which may or may not be user input, it's not just ON/OFF switches or Push Buttons. In fact there are different methods for collecting data either from a user or the environment. According to the requirements, you can expect a user to press some button, toggle a switch, enter a username/password e.t.c. while various types of sensing devices are used to detect changes in the environment which will be discussed in my future posts. Today I am going to briefly introduce you to Keypad interface with the 8051 microcontroller. I have noticed many students having problem with this so I have tried my best to keep it as simple as possible while you will try your best to concentrate and understand it once and for all.