The continuous servo is a motor in the Climate Action Kit. It spins 360 degrees and is fully opaque black plastic. It can mount to either blocks or wheels that come in the Climate Action Kit.
This video will guide you through the basics of how to connect the continuous servo to the Climate Action Kit breakout board, and how to use the servo (both), servo (continuous), and driving code blocks in MakeCode.
Continuous Servo | Tutorial
MakeCode Blocks
The Forward Education extension comes with several new blocks you can use to control the continuous servo. Download the sample code below to your micro:bit to get started with testing your continuous servo.