Archive for 'Yet Another Tips'

Some Cool Electronics Stuff from Your Discarded DVD Player

July 20, 2009 by rwb, under Yet Another Tips.

Today you could easily find a decent quality DVD player for under USD 50; therefore many people just throw it away when it’s broken and just buy a new one instead of repairing it. But as the microcontroller and electronics hobbyist you would be amazed of how these junks could be become your home’s lab valuable asset and these electronics stuff perhaps worth almost USD 50 if you buy it one by one. (more…)

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Simple and Easy Light Emitting Diode (LED) Tester

July 7, 2009 by rwb, under Yet Another Tips.

LED is used in many microcontrollers based project mostly as the indicator; by applying the right forward bias voltage to this special diode, it will emit the light. Today the used of LED has been tremendously increased not just as the electronic devices indicator but also for replacing the conventional light bulb (e.g. flash light, traffic light, car’s break/sign lamp, etc) and perhaps soon it will replace the fluorescent tube lamp in our house. (more…)

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Single In Line (SIL) LED Display for your Microcontroller Based Project

June 18, 2009 by rwb, under Yet Another Tips.

If you use a breadboard for quite a lot to develop and prototype your microcontroller’s based project than you will realize that we repeatedly use the LED to display the microcontroller’s port status. With more LED and its current limiter resistor being added to the breadboard, soon it will occupied our breadboard space very quickly, especially if we use small breadboard for prototyping; not to mention the wire we have to make for this LED and its resistor. (more…)

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Diode for reducing the voltage output

November 26, 2008 by rwb, under Yet Another Tips.

When a silicon diode is in forward bias, the voltage drop across the PN junction is about 0.7 volt, therefore this behavior can be used for reducing the 4 x AA/AAA alkaline battery (it’s about 6 volt) to power your Microcontroller project. (more…)