CircuitGeek

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Entries Tagged ‘PCB’

The Systematic 8×8 LED Matrix

Did you know why there are so many home hobbyists love to involve themselves building 8×8 LED Matrix? Even though it’s not a brand new project, but there’s a multiple ways to develop this amazing project!
Honestly, this 8×8 LED Matrix is the most suitable electronic project, especially for the amateur home hobbyists.

For your information, there’s [...]

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This is Walter 1.1, Not Wall-E!

For those that love the sci-fic cartoon, you must be familiar with the “Wall-E”, where it’s a cute little robot that have been left behind to clean up all the trashes, after the Earth has been seriously polluted (Poor Wall-E).
Well, today’s topic is not about Wall-E, but it’s rather his closer sibling, let’s meet Walter [...]

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Have Some Real Fun with This Phono Preamp Kit!

Do you have any ideas what the Phono Preamp Kit for? Well, if you would like something that can be used to control the music volume, then you’ll discover the advantages of this Phono Preamp Kit!
If you can afford to spend $200 for developing an incredible DIY Phono Preamp, then you should check this out. [...]

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DS1803 Digital Potentiometer – The Great Variable Resistor

You’re still frustrated with your old-fashioned and limited functions potentiometer? Instead of being annoyed by it, why don’t you spends several hours and make a DS1803 digital potentiometer?
With this DS1803 digital potentiometer, you can easily control the resistance over its range in the programmable action, and then send it commands over a 2-Wire (12C/TWI) serial [...]

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DIY an USB Audio DAC and Leave More Green Cow in Your Wallet!

Have immensely interest in the audio DAC design, and would like to DIY a low cost but powerful audio DAC? Ok, now you have the chance, as you’ll learn to create your very own audio DAC today.
You will use the circuit PCM2902 for this project, where you will need to design the DAC from USB [...]

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No Hassle with This 3 Wires Interface for LCD Display

Are you want to create a 3 wire interface for LCD display, but you don’t want to burn too much of money buying the expensive electronic components? If you answered yes, then this post is what you’ve looking for.

Firstly, we’re using the 4 bits in wiring LCD display. Therefore, we must try to group the [...]

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Get Fascinated with This Dazzling RGB Mirror

Do you always feel amazed and flabbergasted with the sparkling RGB lights, especially those colorful lights that use to decorate your house on Christmas or big events?
Well, if you have the chance to DIY yourself instead of adoring others, will you dare to try it?

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