Keyestudio 4WD Manual page 96

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Click "Basic" → "show leds" , then put it into "forever" block， tick blue boxes
to light L
ED and generate"↓"pattern.
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(1) Move out the block"show string" from"Basic"block, and leave it
beneath the"show leds" block
Choose"show icon"from"Basic"block, and leave it beneath the
block"show string"Hello!"block
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