Keyestudio 4WD Manual page 326

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Then drag out"set val to 0"block into"forever"block.
Go to"Ir Remote"→"IR button"
Place it into 0 box
Click"Advanced"→"Serial"→"serial write value"x"=0"
Put it into"forever"block
Change"x"into"IR"
Enter"Variables"to move block"val"into 0 box behind"="
Drag out block"pause (ms) 100"from"Basic"and delay in 1000ms
Leave it into"forever"block
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