/** Close the arm */
 public void closeArm() {
   pnumatics.setSol(Pnumatics.SOL2, Pnumatics.IN);
 }
 /** Open the claw */
 public void openClaw() {
   pnumatics.setSol(Pnumatics.SOL1, Pnumatics.IN);
 }
 /** Open the arm */
 public void openArm() {
   pnumatics.setSol(Pnumatics.SOL2, Pnumatics.OUT);
 }
 /** Close the claw */
 public void closeClaw() {
   pnumatics.setSol(Pnumatics.SOL1, Pnumatics.OUT);
 }