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Monthly Archive for: ‘February, 2012’

Home Made PCB – Etching Copper Layer (Part 2)

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This is Part 2 of my journey in making my first Home Made PCB. If you’ve not read Part 1, here it is. In the last post, I showed the entire process of etching the photo resist layer. Now what’s left of the photo resist layer (green in colour) is the actual PCB layout. Beneath the photo resist layer is …

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Home Made PCB – Etching Photo Resist Layer (Part 1)

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I’ve always wanted to make my own Arduino Prototype Shield. This shield allows the user to use a breadboard on an Arduino. It’s a very simple shield but if I were to buy it, it will cost me at least RM30. An example would be this Prototype Shield from sparkfun.com. It is sold for USD 15, which translates to approximately …

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Tools To Make Your Own PCB

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Today after work I went to Jalan Pasar to do some shopping. Went to get some tools and supplies to make my own PCB at home. I made the PCB shown above in college, it was for an IR Transmitter and Receiver project. I’ve always wanted to make my own PCB at home but couldn’t find the time and resources …

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555 Timer Flashing LED

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I found a 555 Timer IC from an old PCB and decided to play with it.┬áBasically what a 555 Timer does is provide time delays by creating oscillations. Just imagine it like a function generator but only for square waves. I don’t have much knowledge in the 555 Timer but from what I’ve read so far, it has 3 modes …

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Arduino Playing a Melody

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There are many ways a microcontroller can display its’ output, but they can be categorized into three types, sight, motion and sound. Sight means that the output is visual based, such as LEDs and LCDs. I’ve done many examples on that so today I’m going to step into new territory, sound. To produce sound, we need a speaker. Normal speakers …

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Arduino Fake Screenshot Trigger

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I think most of you will be wondering what I’m on about. For those of you who are working in an office, and you have a computer on your desk, most of the time you’ll tend to surf the Internet when there’s less work or when the boss is not around. This is all nice but what happens if your …

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