Vernier Software and Technology
Vernier Software & Technology
Tech Info Library

Scratch and Go! FAQs and Troubleshooting

Scratch is a free, browser-based programming language that is designed for students ages 8 to 16, and it is supported by an active community of millions of users. Students can use Scratch to design music videos, animations, and video games, while learning the fundamentals of coding. Scratch encourages you to share your work and "remix" others' projects to create something new.

Our Go! Extensions bring real-world data - collected from a Go!Temp, Go!Motion, or Go!Link and a compatible standard sensor - into your Scratch project. Have a sprite move in response to the position data from a Go!Motion or change costumes when the temperature measured by the Go!Temp increases. Our Extensions add a new way for students to interact with code.

For instructions on how to connect and use our Go!Motion, Go!Temp, and Go!Link devices with Scratch, visit

Scratch 3, the latest version of Scratch, is compatible with the Go Direct® Force and Acceleration Sensor, order code GDX-FOR, $99. For more details, see

Go!Temp, order code GO-TEMP, $39
Go!Motion, order code GO-MOT, $124
Go!Link, order code GO-LINK, $69

* Our Go!Temp, Go!Motion, and Go!Link extensions are run through the Scratch environment hosted on in a compatible browser (internet connection required), running on a PC or Mac.
* Before you can load an extension in ScratchX, you will need to install the Scratch Extensions Browser Plugin. Note: There is a known bug that prevents the Browser Plugin from operating correctly in a Chrome browser on macOS.

TIL 3765: I am concerned about the warning I get when I open the Vernier Go! Extension on
TIL 3766: The Go! Extension for Scratch isn't loading.
TIL 3767: Why does the Go!Motion continue to click, even when I am not running my ScratchX project?
TIL 3808: Do Vernier sensors work with the Hummingbird robotics system made by Birdbrain Technologies?
TIL 3964: Why won't the Go! Extensions for Scratch run in Firefox?
TIL 4039: What is the sampling rate for the Go! Extensions for Scratch? Can I change them?
TIL 4040: How do I change the units of measurement for my sensor in the Go!Link extension for Scratch?
TIL 4041: Can I use other sensors than those on the compatibility list with the Go!Link Extension for Scratch?
TIL 4042: Why does my sensor show up as "Unidentified Sensor" in the Go!Link Extension for Scratch?
TIL 4121: Can I use the Go! Extensions for Scratch on a Chromebook?

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