the right hand to be free to use the up/down/left/right actions.
```
,-----------------------------------------------------------------------------------.
- | | |ACCL0 | |ACCL1 | | |WHL_L | Up |WHL_R | BTN2 | |
+ | | |ACCL0 | | | | |WHL_L | Up |WHL_R | BTN2 | |
|------+------+------+------+------+-------------+------+------+------+------+------|
- | |ACCL2 | BTN2 | | BTN1 | |WHL_Up| Left | Down |Right | BTN4 | BTN5 |
+ | |ACCL2 | BTN2 | | BTN1 |ACCL1 |WHL_Up| Left | Down |Right | BTN4 | BTN5 |
|------+------+------+------+------+------|------+------+------+------+------+------|
| | | | | BTN3 | |WHL_Dn| BTN1 | | | BTN3 | |
|------+------+------+------+------+------+------+------+------+------+------+------|