Microcontrollers - AVR Atmega32 - Understanding Button Debouncing

Official Page with More Information:
http://newbiehack.com/UnderstandingButtonDebouncing.aspx

This is the ninth in a video series aimed to give a tutorial on the popular Atmel AVR Atmega32 microcontroller. In this video a we investigate the effects of button debouncing using two LEDs and toggling these LEDs back and forth.

Category:

Science & Technology

Tags:

• microcontroller
• atmega
• atmega32
• atmel
• avr
• button
• debounce
• debouncing
• LED
• LEDs
• resistors
• gnd
• ground
• programming
• avr-gcc
• gcc
• winavr
• programmers
• notepad

[somebody301]

yes, in fact if you wish to see if there is a signal you can put a led + a resistor......

[anajonesr]

@somebody301 Good tip.

Another good investment is a logic analyzer. I actually have one of those and it's great to see if serial communication is actually happening. They usually come with many leads to probe multiple legs. I may get into that in the uart tutorial. A good project may even to create one from scratch and show the result on the LCD. Hmm!!

[somebody301]

oh really? so it's better to wait..... ok thanks.

[anajonesr]

@somebody301 Yeah, I wouldn't invest in anything until you see a need for it. Even an oscilloscope is handy but not an absolute necessity.

[somebody301]

so a pc oscilloscope is less than $400. it's fine. What about wave gen? Do you know any cheap brand?

[anajonesr]

@somebody301 I don't use a wave generator... yet!

[MrAlexthemachine]

Okay I have a quick question. Wouldn't a rectifier diode work better for dealing with the reverse voltage caused by a switch? 

[thejking]

noob question here.

Can i use any micro controller with the programming language that you are using?

(with a different programmer) and if i'm right the micro controller is enough of a resistor to not short the circuit right? since you connected the button to ground.

[tlfort]

Man I love how fast you can draw!

[somebody301]

@anajonesr sounds great.... but another project would be a ac/dc pannel amp meter, whit lcd display. Ac amp meters are very unusual, and if you find one it'll cost a lot of money, so remember to put some fuses if you are going to make it.....