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Green rectangular circuit board with multiple white Grove connectors and a USB port

Seeed Studio

Seeed Studio Grove for Scratch Expansion Board

SKU CH-CF43-BGZJK

An expansion board that connects Grove sensors and actuators to Scratch via USB, using built-in WebSerial so no extra software, Bluetooth pairing or external power is required

  • TypeSensors
  • No software install needed thanks to built-in WebSerial in browser
  • USB power means no external battery required for the board
  • Plug-and-play USB avoids Bluetooth pairing and connection drops
  • Multiple Grove ports let you combine many sensors at once
  • Visual Scratch blocks in the browser lower the coding barrier

Scratch expansion board

Grove for Scratch is an expansion board that lets users connect Grove sensors and actuators to the visual programming environment Scratch. It works with Scratch and Stretch3 without installing Arduino or additional software because the WebSerial function is built in. The board targets students and beginners who want to start programming hardware through block-based coding in a browser. No external power supply is required as the board draws power from the computer USB port.

USB-powered operation

The board connects to a computer via USB and is powered directly from that connection, so no external battery or power adapter is needed. This wired link avoids the unstable network or Bluetooth transmission issues that can affect wireless alternatives. Because it uses a physical USB connection, no Bluetooth pairing step is required; the board is ready to use immediately after plugging it in. Power draw and thermal output are minimal and handled passively by the host computer.

Wide Grove port selection

The board provides a variety of Grove ports, allowing multiple Grove sensors and actuators to be used simultaneously for diverse project combinations. This port selection enables users to experiment with different input and output modules without switching hardware. The built-in WebSerial support means all configuration and programming happen inside the browser, removing the need for driver installs or standalone applications. Buyers who need wireless connectivity or standalone operation without a host computer will not find those features here.

Highlights

  • No software install needed thanks to built-in WebSerial in browser
  • USB power means no external battery required for the board
  • Plug-and-play USB avoids Bluetooth pairing and connection drops
  • Multiple Grove ports let you combine many sensors at once
  • Visual Scratch blocks in the browser lower the coding barrier

Specifications

TypeSensors

Questions about this item

How do I install the Grove for Scratch board and what is the step most people miss?

Connect the board to your computer with a USB cable; it powers up and appears in the browser via WebSerial, so the step people miss is that no Scratch Link app or Bluetooth pairing is needed — just open Scratch in a supported browser and start.

What maintenance or replacement will the board need later?

The board itself has no battery or moving parts, so it needs no scheduled maintenance; only the individual Grove sensors or actuators you plug into its ports may need replacement over time.

What limit shows up first under sustained use?

The number of Grove devices you can run at once is limited by the USB port's 5 V current budget, so heavy actuator loads will hit that power ceiling before the board overheats.

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