Saving data/varibles in makecode (NOT makecode arcade)

micro:bit
1

Hello I’m building a project and i need to save variables so even if the microbit gets reset or the batterys run out the variables dont get reset

THANK YOU! :slight_smile:

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Hi @SWIFTGI and welcome to the forum!

I don’t think there’s an official way to do this, but it has been discussed in the forum before (here).

I haven’t tested recently, but I created an example extension to demonstrate the concept of storing a value to the micro:bit’s flash memory. It continues to hold a value across a reset or battery change, but not across reprogramming. You can add this extension to projects by: 1) Click on “+ Extensions”, 2) Paste the URL in the search box and press enter/return, and 3) Select the file for the extension. The URL is: https://github.com/bsiever/microbit-pxt-flashstorage .

Here’s an example project that uses it: https://makecode.microbit.org/_hiXaDp0aoAuF (again, I haven’t tested it recently):

  • It’ll retrieve a stored counter when it starts.
  • Button A increases the counter (but doesn’t update flash)
  • Button A+B decreases the counters (but doesn’t update flash)
  • Button B will update the flash with the current counter.
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