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LED Polarity Detection Device

Telling Anode from Cathode

xBeau

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Description
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Files 0
Components 3
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Discussion 3

Description

Support device for testing/orienting LED's for the SMD Solder Challenge.

Components

1 × CR2032 Battery Holder
1 × CR3032 Battery
1 × Resistor LED Current Limiter

Discussions

mscott wrote 01/11/2019 at 19:12

The internal resistance of a 2032 coin cell is high enough that the resistors aren't necessary.

Simply slide the cell between the LED leads and the LED will light when the polarity is correct.

Are you sure? yes | no

raylearmond wrote 01/09/2019 at 20:39

Why don't you include the resistor size in the Components? Colors are deceiving.

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Mike Szczys wrote 01/08/2019 at 14:44

These really saved our butts at Supercon for the SMD challenge. Thanks for digging into your personal stash and putting these together!

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