ALPHANUMERIC CALENDAR CLOCK

Stopwatch LED Display for Sports Applications

 

 20-5-2015



www.instructables.com/id/Choosing-The-Resistor-To-Use-With-LEDs/

How to calculate the value of resistor for LED's

 

www.evilmadscientist.com/2012/resistors-for-leds/

 

www.hebeiltd.com.cn/?p=zz.led.resistor.calculator

 

www.ohmslawcalculator.com/led-resistor-calculator

LED Resistor Calculator.

 

https://www.sparkfun.com/tutorials/219

 

www.quickar.com/noqbestledcalc.htm

 

 

 




 

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STOPWATCHES