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LED Brightness Control With PWM Function In Arduino LED බල්බයක Brightness විචලනය පාලනය කිරීම සහ PWM Function එක භාවිතා කර RGB LED එකක පාට හැසිරවීම සරල සිංහල බසින්. Brightness of an led cannot be directly controlled as the Arduino works with 5v and 0v (digital) for this we use the analogWrite function to generate pwm pulse wich will inturn help us to change the brightness Part list : 150-330 ? resistor x 1 Led x 1 Arduino board x 1 Jumper wires Bread board x 1 RGB led x 1 Steps: Connect the Arduino board to the computer via the USB cable. Open up Arduino IDE. Select the correct COM Port. Select the correct Board . Type the code and Upload. Group Link : https://www.facebook.com/groups/vikil... Page Link : https://www.facebook.com/vikilabs17/ Code and Tutorial PDF Zip - https://drive.google.com/open?id=0B-x...

Knight Rider Circuit with Arduino In Sinhala   පහසුවෙන් Knight rider circuit එකක් සාදා ගන්නා අයුරු සරල සිංහල බසින්! The digital pins of the Arduino can be used to power the led’s of this circuit To limit the current flowing through the LED’s we use a resistor (150 -330 ?) connected series with the ground pin of the Arduino board. Part list : 150-330 ? resistor x 1 Leds x 10 Arduino board x 1 Jumper wires Bread board x 1 Steps: Connect the Arduino board to the computer via the USB cable. Open up Arduino IDE. Select the correct COM Port. Select the correct Board . Type the code and Upload. Have fun by changing the delays. Try – delay(100); Group Link : https://www.facebook.com/groups/vikil... Page Link : https://www.facebook.com/vikilabs17/ Code and Tutorial PDF Zip - https://drive.google.com/open?id=0B-x...  

Fixed Resistors.        Fixed resistors පිළිබඳ සරල සිංහලෙන් දැනගමු! • Resistance is the opposition for the current flow. • Resistance is measured in ohms ( Ω ) • Fixed resistors have a fix value of resistance. • Circuit Symbols:    • Physical appearance of the resistor :  • Resistance can be measured directly  multimeter   . Steps : ´ Set the multimeter to the resistance range ´ Connect the resistor to the multimeter leads ´ Take the reading on the display ´ Resistance of the resistor can also be calculated using the colour bands printed on the surface of the resistor: ´ Steps  ´ Observe the 1 st 3 color bands of the resistor (starting from the opposite end to silver or gold color band) ´ Each colour represents a number. ´ Combining the numbers we can calculate the resistance value. Example 1 : Example 2 : ´ The 4 th color band gives the tolerance ...

How To Blink a LED With Arduino In Sinhala  Arduino මුලධර්ම භාවිතයෙන් පහසුවෙන් LED බල්බයක් නිවී නිවී දැල්වෙන අවස්ථාව උදා වීම සහ එමගින් ඉතා සාර්ථක ආලෝක රටාවක් සැකසා ගැනීම වනතෙක් සියළු පියවර අන්තර්ගතව ඔබ වෙත  ඉදිරිපත් කරන  වීඩියෝවයි මේ! In this video we need;  Output pins of the Ardunio board has the ability to give around 20 mA per I/O pin. This 20 mA is more than enough to switch on an LED. Rather than using the full current we are to limit the current by using a resistor in series. A good resistor value is 330 ohms. (use can use any resistor between 150 – 330 ohms) Steps : Connect the Arduino board to the computer via the USB cable. Open up Arduino IDE. Select the correct COM Port. Select the correct Board . Type the code and Upload. Code and Tutorial PDF Zip - https://drive.google.com/open?id=0B-xkwb9ASKxXWmhSOTdFTjlGTDQ

How To Power Up a LED From Arduino's 5V Output Explained In Sinhala | 01 Arduino board has given us opportunity to obtain a power output of 5V once its connected to the computer. Its is possible to draw up to about 700 mA from the board safely via the USB Connection. This output can be used for any project that does not consume too much current with or without  the board itself running a code at all.The advantage of this is that you don't need an external power supply to build your simple projects. Arduino board එකේ 5V power output මගින් සරලව LED බල්බයක් දල්වා ගන්නා අයුරු දන්න සිංහලෙන්.    FB Group Link : http://www.facebook.com/groups/vikilabs17 FB Page Link : http://www.facebook.com/vikilabs17/ Presentation : https://drive.google.com/open?id=0B-xkwb9ASKxXSTRUTkhNeFg2TnM