Light Emitting Diodes


Typical Voltage Drops

ColorVoltage Drop
Red1.7
Bright Red1.9
Orange2.0
Green2.1
Bright White3.4
Blue3.4


ESP Notes

For brightest LED without exceeding max GPIO current of 12 mA:

V=I/R

R=V/I = 3.3/0.012 = 275 ohms