KY-011 37-1 2-color LED module
Led with red and green color
Additional needed 330 Ohm resistor ( 2x)
Hardware connection
- Arduino pin 10 --> resistor 330 Ohm --> Signal pin of the module (Green)
- Arduino pin 11 --> resistor 330 Ohm --> Middel pin of the module (Red)
- Arduino GND --> module -/GND
The circuit will work without the 330 Ohm resistor, however it is strongly recommended to add the resistors!
Function
The led will display several colors.
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