CircuitGeek

Electronics for Everyone

Entries for the ‘DIY’ Category

This Oven is Not For Heating Foods!

Do you ever wish to create an oven, which it can be used to reflow the soldering inside it? Well, instead of wasting your time thinking about it, why don’t you spend a couple of hours and make one for your own use?
The Reflow soldering oven that you’re going to create is equipped with the [...]

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The Cute Little Mouse pointer

Have you ever thought that you can develop a petite mousepointerpointer and apply it into the various uses? Well, it’s a very simple project and it doesn’t require too much of work here.
The whole project is based on the USB-Servo, where it is a device to control a servo via the USB. Before that, do [...]

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The Ultrasonic Bat Detector Can Be Really Loud and Awesome!

Do you have the deep interest about how the bat detect obstacle and catch its preys in the dark? If you’ve been wondering all the time, then today you’ll reveal the secret by your own!

Basically, this simple bat detector is a device that based on a frequency division type. This mean is a device that [...]

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The Creative AA Battery Powered Cell Phone – Your Cell Phone will Have Longer Life Time!

Have you ever faced this embarrassment before - you’re talking happily with your family or friends through the cell phone, but the cell phone’s battery just being died suddenly?
Yeah, you’re pissed off and feel want to thrash the cell phone into pieces. Well, there is a better solution for your matter, instead of losing your [...]

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Feel the Sparkling Moment with the HDD Grinder

If you had lots of broken HDD and you don’t even know, what supposed to deal with these HDD, do you mind to transform it into a super duper HDD grinder?
You need to prepare these components:

A dead HDD (It doesn’t matter what the brand is, as long as it has [...]

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The Good Helper for Pressure Sensor – DIY Force Sensitive Resistor (FSR)

Do you wish to have a thin, accurate and durable Force Sensitive Resistor (FSR) to help you to sense the surface pressure? Well, would you want to spend over $50 for just an adequate quality FSR, while you can DIY it with less than $20 here?

First of all, you have to prepare the require tools [...]

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LED Matrix – The Shining Electronic Sign Board that You Can’t Even Resist

You would like to create a LED Matrix, but the only matter is you don’t want to get too fussy with soldering each LED individually?
Well, there is always a good alternative here and it’s doesn’t costing you too much.

Those components that needed are:

Two 5×7 LED Matrix Displays
Solder Breadboard
Transistors
Resistors
4017 Chip (For switching in between the columns)
Wires, [...]

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