Thingiverse
USB LED Tester Box
door firepower9966
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USB LED Tester Box
I used an old USB phone charger cable wired to 2x8 2.54mm DIL socket and resistors to test LEDs with different currents.
1,2,3,6,10,20,30,60 mA currents can be tested.
Resistor Values: 5V USB for red LED (2V drop)
1mA 3K
2mA 1K5
3mA 1K
6mA 500
10mA 150
20mA 100
60mA 50
I used an old USB phone charger cable wired to 2x8 2.54mm DIL socket and resistors to test LEDs with different currents.
1,2,3,6,10,20,30,60 mA currents can be tested.
Resistor Values: 5V USB for red LED (2V drop)
1mA 3K
2mA 1K5
3mA 1K
6mA 500
10mA 150
20mA 100
60mA 50
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