Onier / RC_Servo

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Dependencies:   SoftPWM

Fork of RC_Servo by FRC - Hackathon

RC_Servo.cpp@0:b8dcca3dc509, 2018-05-21 (annotated)

Committer:
haarkon
Date:
Mon May 21 15:55:54 2018 +0000
Revision:
0:b8dcca3dc509
Child:
1:8482eba4d652
Untested first release of RC Servomotor library;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
haarkon 0:b8dcca3dc509 1 #include "RC_Servo.h"
haarkon 0:b8dcca3dc509 2
haarkon 0:b8dcca3dc509 3 RC_Servo::RC_Servo(PinName PWM, int _extended) : _pwm(PWM)
haarkon 0:b8dcca3dc509 4 {
haarkon 0:b8dcca3dc509 5 _pwm.period(0.02);
haarkon 0:b8dcca3dc509 6 if (_extended) {
haarkon 0:b8dcca3dc509 7 _pMin = 400;
haarkon 0:b8dcca3dc509 8 _pMax = 2400;
haarkon 0:b8dcca3dc509 9 } else {
haarkon 0:b8dcca3dc509 10 _pMin = 1000;
haarkon 0:b8dcca3dc509 11 _pMax = 2000;
haarkon 0:b8dcca3dc509 12 }
haarkon 0:b8dcca3dc509 13 }
haarkon 0:b8dcca3dc509 14
haarkon 0:b8dcca3dc509 15 void RC_Servo::write (float position)
haarkon 0:b8dcca3dc509 16 {
haarkon 0:b8dcca3dc509 17 if ((position >= 0) && (position <= 1))
haarkon 0:b8dcca3dc509 18 _pwm.pulsewidth_us (_pMin + (int)(position * (_pMax - _pMin)));
haarkon 0:b8dcca3dc509 19 }
haarkon 0:b8dcca3dc509 20
haarkon 0:b8dcca3dc509 21 /**
haarkon 0:b8dcca3dc509 22 * A short hand for write
haarkon 0:b8dcca3dc509 23 */
haarkon 0:b8dcca3dc509 24 RC_Servo& RC_Servo::operator= (float position)
haarkon 0:b8dcca3dc509 25 {
haarkon 0:b8dcca3dc509 26 write (position);
haarkon 0:b8dcca3dc509 27 }