I used a USB Microscope Camera from adafruit to capture this detail. Read more about light emitting diodes on wikipedia
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Remember the first time you played with Light Emitting Diodes? Well today I have the privilege of sharing LEDs with Tasmeem! The wikipedia LED entry tells all. I would add a label for the P-N junction and note that typically the positive lead is the longer one.
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eTextile Breadboards0
Reprogramming an ATtiny450
Photosensor Circuit0
Push the Blue Switch!0
Conductive Thread from Syscom0
4cm x 6cm PCB from eBay seller czb67219600
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Heart Sensors0
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Programming ATtiny45s for PIF0
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ATtiny 45 Broken and Exposed0Conductive Thread from Syscom04cm x 6cm PCB from eBay seller czb67219600
Universal Pen Holder with Brother ScanNCut20Universal Printed Circuit Boards from eBay0
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NFC Tags0
Workbench at Ljudmila – Preparing for PIF0eTextile Breadboards0Reprogramming an ATtiny450Photosensor Circuit0Push the Blue Switch!0Conductive Thread from Syscom04cm x 6cm PCB from eBay seller czb67219600Universal Pen Holder with Brother ScanNCut20