In this Instructable you will make a LED flasher. You will also be able to adjust it.

Step 1: Bill of materials

  1x 555 timer
  1x LED
  1x 9 volt battery and clip
  1x 220μf capacitor
  1x 101 Ω resister
  1x 101 Ω variable resister
  1x 900 Ω resister
  multiple wires

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need a bigger schematic cant understand a thing<br>
Whats That a Picture(s) of???
Look thanks for posting this BUT:<br /> You really are not helping folks with the poorly drawn circuit diagram, it's almost certain to create avoidable mistakes.<br /> Also 9V batteries are not cheap &amp; most LED lights that I come across are typically 1x AAA or 2x AAA, IE 1.5 or 3 V.<br /> I was thinking about using this on my bike but the voltage is so high I am dubious about the likelihood of either over-driving the LEDs or just wasting power in creating the necessary voltage drop.<br /> Can you spell out the reasons you selected 9V please.<br /> Thanks<br /> Peter O<br />
i had a lot just lying around the house, you need at least 5 volts if not using a CMOS 555 chip.
Instead of using a 9 volt battery could you use three 3 volt batteries?&nbsp;
yes, it just needs to be at least 5 volts.<br />
mistake, you cant, but you can use 4 AA batteries<br />
i must have been tired, you can :)
&nbsp;Help! I need to use this&nbsp;circuit for a project. My led blinks too fast! I am using just a 100&nbsp;ohm&nbsp;resister instead of a &nbsp;variable&nbsp;resister. Is there something that I should change??? thanks<br /> <br />
use higher resistance<br /> <br />
&nbsp;Thanks!!!!<br /> <br />
Good, but this will be better if you'd change the word resistor to resistor not resister and if you'd have better pictures. And I personally would rather open and instructable spelled with a Big letter in the beginning of the name than with small letter. Okay that's me:&nbsp;D The schematic could also be drawen with computer. Sorry for all that nagging : D Good instructable, will really help someone who is starting with the 555s<br />
Just some tips=)<br />
thanks<br />
i dont remember what the board your using is called.could you plz tell me<br /> <br />
Its a breadboard, I got it from Abra Electronics. <br />
sorry, i didn't have my tripod.<br />
Any chance of images in focus?<br />

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