Charged electrons flow from the power source along the negative trace (green) thru a resistor to the cathode.
Like excited lemmings they jump the P-N junction emitting light.
Finally, the spent electrons slide along the positive trace (red) to get charged up at the battery.
KEY
- battery is black
- negative trace is green
- resistor is blue (conductive thread usually has enough resistance to eliminate a resistor from the sewn eTextile circuit)
- diode is yellow
- positive trace is red
- black dots are connection points
