Category Archive: Small Projects

Soldering Fan 2.0

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Playing with a color sensor

I’ve spent a day playing with the¬†TCS3200 color sensor from TAOS (now ams AG). I’ve connected it to an Arduino and sent the color over the serial port to an application written in Processing. The application outputs the color found by drawing a square.

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Carbon Filter Soldering Fan

A PSU fan with a carbon filter. For my protection when soldering!

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Beeping Motion Detector

We have this big box of candy at my office at work, that keeps getting more popular with people from the other offices. I wanted to make their sneaky candy stealing more detectable, with a beeping motion detector circuit.

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Servo tester by 555 timer

I needed a servo tester for my workshop, to have at hand whenever I change servo horns or need to see if a servo is dead. I decided to use a 555 timer to do this.

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Using LDO as an adjustable voltage supply

I came across this Low DropOut voltage chip and figured I would use it as an adjustable voltage source. All it required was a trimpot, a capacitor and a resistor.

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Electronic Sheep

The electronic sheep is a plastic sheep fitted with a rgb-led inside. It can show colors in various patterns, and the electronics also supports adding a servo motor for moving the head. I will describe the works and making of the electronics and code. This is a good beginners project for using an Atmel microcontroller.

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