Introduction: Calculating Resistor Values for LEDs in Series
R = ( V
The calculation of how a resistor reduces Voltage (pressure), is very important in electronics. The value of the correct Resistor for LEDs in Series is the Supply Voltage (pressure) minus the total pressure consumed by all off the LEDs (Voltage Drop Across a Single LED times by the total Number of LEDs), that answer is then divided by the LED Current (electron flow) required by the circuit.
R = ( V
Calculated Limiting ResistorOhms
Nearest Higher Rated Limiting Resistor
Supply Voltage ( V
Voltage Drop Across a Single LED - Load ( V
Desired LED Current ( I )
Number of LEDs( n )
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