0%

0%

LED Polarity Detection Device

Telling Anode from Cathode

xBeau

Following Follow project

Liked Like project

Become a Hackaday.io member

OR

Just one more thing

To make the experience fit your profile, pick a username and tell us what interests you.

OK, I'm done! Skip

Similar projects worth following

694 views

Description
Details
Files 0
Components 3
- View all
Logs 0
Instructions 0
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.

Are you sure? yes | no

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!

Are you sure? yes | no

Similar Projects

A Web (OpenHAB) enabled RGB-LED Desktop Lamp

ESPLamp

Basic Accelerometer manipulation, with LEDs as a guide

Adafruit Accelerometer Mini-Game

Playing and recording audio with the new M5Stack ATOM Echo using MicroPython

Introducing the new M5Stack ATOM Echo

mauro-riva Mauro Riva

This is the demo project for Tibbo's MQTT library.

MQTT Library Demo

dmitry-slepov Dmitry Slepov