Introduction: Battery Clip LED Tester.

Picture of Battery Clip LED Tester.

have you ever put together a circuit and after finishing you find your LED doesn't work? well with this Instructable that will never happen again! I present to you the Battery clip LED tester.

Step 1: Components:

Picture of Components:

female header pins
1k resistor
9v battery clip

soldering iron

Step 2: Header Pins

Picture of Header Pins

solder your header pins onto a piece of perfboard, sorry about the lack of a good photo.

Step 3: Resistor

Picture of Resistor

solder the 1k resistor to the header pins.

Step 4: More Soldering!

Picture of More Soldering!

Solder the leads of the battery clip to the resistor and the other header pin.

Step 5: Your Done!

well done you now have a functioning LED tester!


botgames made it! (author)2017-09-06

Great little instructable! I made one and I use it all the time.

bweaver6 (author)2015-06-09

You could even adjust the circuit and use it to test transistors.

MakerBox (author)bweaver62015-06-09

I have another instructable covering this subject

oragamiunicorn (author)MakerBox2017-03-07

I was looking for your transistor tester and couldn't see it. could you reply with a link please?

MakerBox (author)oragamiunicorn2017-03-09


Sorry, i took that down ages ago, i saw that make: had made a video on it and i didn't want people saying that i'd copied their idea.

Here's a link to their wepage on it, it's much better than mine was anyway. :)

King_Lee made it! (author)2016-03-29

What a neat little evening project. I've added a push button to the thing.

MakerBox (author)King_Lee2016-03-30

thanks! I hope to be making more projects like this in the future! (simple but useful ones)

diy_bloke (author)2015-04-22

the question remains... is it a led tester or a battery tester. now that is a Zen-moment

samshim99 (author)diy_bloke2015-04-23

both I guess

MakerBox (author)diy_bloke2015-04-22

;) that's a cool idea I will add it in an update

diy_bloke (author)2015-04-20


MakerBox (author)diy_bloke2015-04-21

thank you xD

kingofprojects (author)2015-04-20

its simple,nice work keep it up

MakerBox (author)kingofprojects2015-04-21

thanks ;)

rodski (author)2015-04-19

Cool!.,faster way to test LEDs !

MakerBox (author)rodski2015-04-19


script_coded (author)2015-04-19

Practical little device!

MakerBox (author)script_coded2015-04-19

thank you! :)

Timetraveler123 (author)2015-04-19

cool and simple please continue this series. :)

MakerBox (author)Timetraveler1232015-04-19

I will continue it :)

electron122 (author)2015-04-19

Cool nice instructable

MakerBox (author)electron1222015-04-19


About This Instructable




Bio: i am an inventor/mad scientist who likes to mess about with electronics
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