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Diffstat (limited to 'libraries/Servo/Servo.h')
| -rw-r--r-- | libraries/Servo/Servo.h | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/libraries/Servo/Servo.h b/libraries/Servo/Servo.h deleted file mode 100644 index 8168494..0000000 --- a/libraries/Servo/Servo.h +++ /dev/null @@ -1,126 +0,0 @@ -/* - Servo.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2 - Copyright (c) 2009 Michael Margolis. All right reserved. - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -*/ - -/* - - A servo is activated by creating an instance of the Servo class passing the desired pin to the attach() method. - The servos are pulsed in the background using the value most recently written using the write() method - - Note that analogWrite of PWM on pins associated with the timer are disabled when the first servo is attached. - Timers are seized as needed in groups of 12 servos - 24 servos use two timers, 48 servos will use four. - The sequence used to sieze timers is defined in timers.h - - The methods are: - - Servo - Class for manipulating servo motors connected to Arduino pins. - - attach(pin ) - Attaches a servo motor to an i/o pin. - attach(pin, min, max ) - Attaches to a pin setting min and max values in microseconds - default min is 544, max is 2400 - - write() - Sets the servo angle in degrees. (invalid angle that is valid as pulse in microseconds is treated as microseconds) - writeMicroseconds() - Sets the servo pulse width in microseconds - read() - Gets the last written servo pulse width as an angle between 0 and 180. - readMicroseconds() - Gets the last written servo pulse width in microseconds. (was read_us() in first release) - attached() - Returns true if there is a servo attached. - detach() - Stops an attached servos from pulsing its i/o pin. - */ - -#ifndef Servo_h -#define Servo_h - -#include <inttypes.h> - -/* - * Defines for 16 bit timers used with Servo library - * - * If _useTimerX is defined then TimerX is a 16 bit timer on the curent board - * timer16_Sequence_t enumerates the sequence that the timers should be allocated - * _Nbr_16timers indicates how many 16 bit timers are available. - * - */ - -// Say which 16 bit timers can be used and in what order -#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) -#define _useTimer5 -#define _useTimer1 -#define _useTimer3 -#define _useTimer4 -typedef enum { _timer5, _timer1, _timer3, _timer4, _Nbr_16timers } timer16_Sequence_t ; - -#elif defined(__AVR_ATmega32U4__) -#define _useTimer1 -typedef enum { _timer1, _Nbr_16timers } timer16_Sequence_t ; - -#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__) -#define _useTimer3 -#define _useTimer1 -typedef enum { _timer3, _timer1, _Nbr_16timers } timer16_Sequence_t ; - -#elif defined(__AVR_ATmega128__) ||defined(__AVR_ATmega1281__)||defined(__AVR_ATmega2561__) -#define _useTimer3 -#define _useTimer1 -typedef enum { _timer3, _timer1, _Nbr_16timers } timer16_Sequence_t ; - -#else // everything else -#define _useTimer1 -typedef enum { _timer1, _Nbr_16timers } timer16_Sequence_t ; -#endif - -#define Servo_VERSION 2 // software version of this library - -#define MIN_PULSE_WIDTH 544 // the shortest pulse sent to a servo -#define MAX_PULSE_WIDTH 2400 // the longest pulse sent to a servo -#define DEFAULT_PULSE_WIDTH 1500 // default pulse width when servo is attached -#define REFRESH_INTERVAL 20000 // minumim time to refresh servos in microseconds - -#define SERVOS_PER_TIMER 12 // the maximum number of servos controlled by one timer -#define MAX_SERVOS (_Nbr_16timers * SERVOS_PER_TIMER) - -#define INVALID_SERVO 255 // flag indicating an invalid servo index - -typedef struct { - uint8_t nbr :6 ; // a pin number from 0 to 63 - uint8_t isActive :1 ; // true if this channel is enabled, pin not pulsed if false -} ServoPin_t ; - -typedef struct { - ServoPin_t Pin; - unsigned int ticks; -} servo_t; - -class Servo -{ -public: - Servo(); - uint8_t attach(int pin); // attach the given pin to the next free channel, sets pinMode, returns channel number or 0 if failure - uint8_t attach(int pin, int min, int max); // as above but also sets min and max values for writes. - void detach(); - void write(int value); // if value is < 200 its treated as an angle, otherwise as pulse width in microseconds - void writeMicroseconds(int value); // Write pulse width in microseconds - int read(); // returns current pulse width as an angle between 0 and 180 degrees - int readMicroseconds(); // returns current pulse width in microseconds for this servo (was read_us() in first release) - bool attached(); // return true if this servo is attached, otherwise false -private: - uint8_t servoIndex; // index into the channel data for this servo - int8_t min; // minimum is this value times 4 added to MIN_PULSE_WIDTH - int8_t max; // maximum is this value times 4 added to MAX_PULSE_WIDTH -}; - -#endif |