Did you notice that when you turned off your robot last time, the HUSKYLENS forgot everything you taught it? That’s because, without extra storage, its training data only lives in temporary memory, called RAM.
The fix is simple: add a MicroSD card. With it, and a few more blocks, your micro:bit can make the HUSKYLENS save training data after the power is turned off. So, when you power the cyber:bot back on, it “remembers” exactly what you taught it — whether that’s colors, faces, tags, or a combination of all of them.
In this lesson, you’ll learn how to:
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Insert and set up a MicroSD card for the HUSKYLENS
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Save training data (colors, faces, tags, or objects) directly to the card
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Power off and restart to confirm your training still works
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Erase or retrain data when it’s time for new experiments
With MicroSD storage, your robot becomes more like a computer with a hard drive: it doesn’t just learn for now, it keeps what it knows for the future. This makes it possible to build long-term projects, run multi-day experiments, or bring a fully trained robot into a competition — no retraining required.
💡 Tip: You can also share training data by swapping cards. One robot can “teach” another by simply moving the MicroSD.
