Pioneer Module Mobile - Manual (Page 25)

Gripper & Experimenter’s Module
21
void
sfRobotCom2Bytes(int com, int high, int low)
{
sfRobotComInt(com, ((high & 0xff)<<8) + (low & 0xff));
}
/*************************************************************
* Speaker functions -- play a tone string
*
* Format of string is L1 T1 L2 T2 .... Ln Tn
* where Li is length of tone i in 20ms increments
* and Ti is tone half-cycle time in 150us increments
*
* Max length of string is 40 bytes (20 tones)
*
**************************************************************/
void
sfPlayToneString(char *str, int n)
{
if (n > 40) n = 40;
sfRobotComStrn(sfCOMSAY, str, n);
}
/*************************************************************
* Gripper functions --- set and retrieve gripper state
*
* States are sfUP, sfDOWN, sfMIDDLE, sfOFF, and sfMOVING
* sfMOVING occurs only during transitions between states
* sfOFF can be set by the user, which means no state control
* sfOFF can be set by the robot to indicate a timeout
*
**************************************************************/
/* states */
#define sfGRIPOFF 0
#define sfGRIPUP 1
#define sfGRIPMOVING 2
#define sfGRIPMIDDLE 4
#define sfGRIPDOWN 5
#define sfCOMGRIPPER 33
( continued )