Neopixel Rainbow LED strip and GVS conector -10 LEDs
This is a colorful strip based on WS2812B beads, it can display the color of RGB and support multiple cascade at the same time.
Characteristics
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Standard 3-pin GVS ports is easy to plug.
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Both ends are equipped with a connector and it supports multiple cascade.
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It can drive the micro:bit in 3.3V.
Specifications
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Working Voltage: DC 3.0V
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Power Supply: 3v-5v
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Connector Type: Analog
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Number of beads: 10 pcs
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Pins Definition: 1-Signal 2-VCC 3-GND
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Response: Quick to response and high sensitivity
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Circuit:Simple drive circuit
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Stability:Stable and durable
Outlook and Dimensions

Quick to Start
Connection Diagram
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Connect to the P1 port of the extension board.

Add Package
Click "Advanced" in MakeCode to check more choices.

Click "Extensions", and search "neopixel" in the dialogue box to download the codebase of LED beads.
Programme as the Picture Shows

Reference
Links: https://makecode.microbit.org/_bfECLKegkYbR
Results
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The LED strips display in a light water way.