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+Articulated spider-like legs. Enables your Cubot to walk on standard surfaces.
+
+### Specifications
+Manufacturer: 立方電子  
+Version: 1.0B  
+Default address: `0x0001`  
+Hardware ID: `0x0001` 
+
+### Interrupt Behavior
+| Value of A | Action | Energy cost | Result |
+| --- | --- | --- | --- |
+| `1` | `SET_DIRECTION` | `10 kJ` | Set the direction |
+| `2` | `SET_DIRECTION_AND_WALK` | `100 kJ` | Set the direction and walk forward |
+
+Specify the direction in the B register:  
+`NORTH` = `0x0000`  
+`EAST` = `0x0001`  
+`SOUTH` = `0x0002`  
+`WEST` = `0x0003`
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