A Simple Open-close Led Bargraph Circuit




Introduction: A Simple Open-close Led Bargraph Circuit

About: A boy that loves aviation, music and electronics

This is my first instructables. I am not American, I am Brazilian, so forgive my spelling.
Well we go to my project. A circuit for months tried to take an effect as an "open and close" in a LED bargraph and only found circuits with microcontrollers, which use not know yet. Until a site of one of the magazines that I buy, I found this circuit, hills and found it very good.
Below the list of parts, instructions on how to assemble and some images:


1 555 timer
1 4017 counter
1 LED bargraph or 10 LED's
2 4k7 resistor
1 1K resistor
1 1M Potenciometer
1 10uF/ 16V capacitor
12V source

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Step 1: The Instructions

Let the assembly:
Look at the first figure in step one: in place of the LED module to place the diode (Figure 2).
The diodes are of general use, the CI's case is mounted in PCI should be with their respective sockets to facilitate the exchange in case of burning.
and that. I hope everything in its right to the next assembly and instructables.

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    2 Discussions


    10 years ago

    Hello, and welcome to the Instructables community! It's great that you've decided to tell the world about something you've made by publishing an Instructable. We just wanted to let you know that your project still needs a little more work if you want it to be well received on Instructables. Projects that don't include certain basic elements tend not to get the attention that they deserve, and so we'd love for you to check out the list below of what makes a successful Instructable. Successful projects on Instructables include: - clearly written details of a finished project with instruction - as many steps as are necessary to explain your project - clear images that you took of your project for most, if not all of your steps - an intro image - proper spelling and grammar - appropriate cautions or safety considerations I'll give you another opportunity to make any final changes to your project before we publish it. Once you're all set to go, please republish your project and send me a quick comment letting me know that you've made some changes. I'll give it a quick final check to make sure you're on the right path, and then remove this note. Thanks for your submission and we hope to see your project published soon!


    8 years ago on Introduction

    i use linux with firefox so that spell check keeps me out or trouble.. your english seems great.. keep up the good work