|
Debouncing buttons on virtual ports |
 |
 |
|
Written by Pop Gheorghe
|
|
Sunday, 17 January 2010 13:42 |
|
Recently I faced a problem that gave me headaches. For an application I need to debounce 7 push buttons witch were connected on different ports. Searching the internet I found two ways to do this, namely: hardware method that involves an extra circuit and a software method that involves only code changes. Due to the fact that I'm not a hardware expert but also because I didn't want to further complicate the circuit I have chosen the software method. Next I will discuss the method used by me to solve this problem detailing a bit principles used and finally I will present you a working example.
|
|
|
|
|
|
|
|
Page 1 of 2 |
In the folowing page I will present you an open source development board for ATMEGA8 builded especialy for Linux users. This development board is perfect for all the newbies that want to learn about AVR Microcontrollers or want to build some nice projects with it.
This is a program that will help you at your electronic based projects or at school. For it to calculate you will have to enter data in two of the four data fields. The four data fields are: electric power [P], resistance[R], current[I] and voltage[V]. As an example if you want to calculate the resistance[R] you wil have to supply the value for the electric power[P] and current[I] or you can supply the value of the power[P] and voltage[V].