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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <https://www.gnu.org/licenses/>.
- *
- */
- #pragma once
-
- /**
- * 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 seize 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.
- * move(angle) - Sequence of attach(0), write(angle),
- * With DEACTIVATE_SERVOS_AFTER_MOVE wait SERVO_DELAY and detach.
- */
-
- #if IS_TEENSY32
- #include "../TEENSY31_32/Servo.h"
- #elif IS_TEENSY35 || IS_TEENSY36
- #include "../TEENSY35_36/Servo.h"
- #elif IS_TEENSY40 || IS_TEENSY41
- #include "../TEENSY40_41/Servo.h"
- #elif defined(TARGET_LPC1768)
- #include "../LPC1768/Servo.h"
- #elif defined(__STM32F1__) || defined(TARGET_STM32F1)
- #include "../STM32F1/Servo.h"
- #elif defined(STM32GENERIC) && defined(STM32F4)
- #include "../STM32_F4_F7/Servo.h"
- #elif defined(ARDUINO_ARCH_STM32)
- #include "../STM32/Servo.h"
- #elif defined(ARDUINO_ARCH_ESP32)
- #include "../ESP32/Servo.h"
- #else
- #include <stdint.h>
-
- #if defined(__AVR__) || defined(ARDUINO_ARCH_SAM) || defined(__SAMD51__)
- // we're good to go
- #else
- #error "This library only supports boards with an AVR, SAM3X or SAMD51 processor."
- #endif
-
- #define Servo_VERSION 2 // software version of this library
-
- class Servo {
- public:
- Servo();
- int8_t attach(const int pin); // attach the given pin to the next free channel, set pinMode, return channel number (-1 on fail)
- int8_t attach(const int pin, const int min, const int max); // as above but also sets min and max values for writes.
- void detach();
- void write(int value); // if value is < 200 it is treated as an angle, otherwise as pulse width in microseconds
- void writeMicroseconds(int value); // write pulse width in microseconds
- void move(const int value); // attach the servo, then move to value
- // if value is < 200 it is treated as an angle, otherwise as pulse width in microseconds
- // if DEACTIVATE_SERVOS_AFTER_MOVE wait SERVO_DELAY, then detach
- 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
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