From e01b23840354acd6c260b1f552bf0c5f5d7cdede Mon Sep 17 00:00:00 2001 From: Fede85 Date: Thu, 27 Jun 2013 19:24:16 +0200 Subject: Stepper library to the new format --- libraries/Stepper/Stepper.cpp | 220 ------------------------------------------ 1 file changed, 220 deletions(-) delete mode 100644 libraries/Stepper/Stepper.cpp (limited to 'libraries/Stepper/Stepper.cpp') diff --git a/libraries/Stepper/Stepper.cpp b/libraries/Stepper/Stepper.cpp deleted file mode 100644 index 5d6b5e5..0000000 --- a/libraries/Stepper/Stepper.cpp +++ /dev/null @@ -1,220 +0,0 @@ -/* - Stepper.cpp - - Stepper library for Wiring/Arduino - Version 0.4 - - Original library (0.1) by Tom Igoe. - Two-wire modifications (0.2) by Sebastian Gassner - Combination version (0.3) by Tom Igoe and David Mellis - Bug fix for four-wire (0.4) by Tom Igoe, bug fix from Noah Shibley - - Drives a unipolar or bipolar stepper motor using 2 wires or 4 wires - - When wiring multiple stepper motors to a microcontroller, - you quickly run out of output pins, with each motor requiring 4 connections. - - By making use of the fact that at any time two of the four motor - coils are the inverse of the other two, the number of - control connections can be reduced from 4 to 2. - - A slightly modified circuit around a Darlington transistor array or an L293 H-bridge - connects to only 2 microcontroler pins, inverts the signals received, - and delivers the 4 (2 plus 2 inverted ones) output signals required - for driving a stepper motor. - - The sequence of control signals for 4 control wires is as follows: - - Step C0 C1 C2 C3 - 1 1 0 1 0 - 2 0 1 1 0 - 3 0 1 0 1 - 4 1 0 0 1 - - The sequence of controls signals for 2 control wires is as follows - (columns C1 and C2 from above): - - Step C0 C1 - 1 0 1 - 2 1 1 - 3 1 0 - 4 0 0 - - The circuits can be found at - -http://www.arduino.cc/en/Tutorial/Stepper - - - */ - - -#include "Arduino.h" -#include "Stepper.h" - -/* - * two-wire constructor. - * Sets which wires should control the motor. - */ -Stepper::Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2) -{ - this->step_number = 0; // which step the motor is on - this->speed = 0; // the motor speed, in revolutions per minute - this->direction = 0; // motor direction - this->last_step_time = 0; // time stamp in ms of the last step taken - this->number_of_steps = number_of_steps; // total number of steps for this motor - - // Arduino pins for the motor control connection: - this->motor_pin_1 = motor_pin_1; - this->motor_pin_2 = motor_pin_2; - - // setup the pins on the microcontroller: - pinMode(this->motor_pin_1, OUTPUT); - pinMode(this->motor_pin_2, OUTPUT); - - // When there are only 2 pins, set the other two to 0: - this->motor_pin_3 = 0; - this->motor_pin_4 = 0; - - // pin_count is used by the stepMotor() method: - this->pin_count = 2; -} - - -/* - * constructor for four-pin version - * Sets which wires should control the motor. - */ - -Stepper::Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2, int motor_pin_3, int motor_pin_4) -{ - this->step_number = 0; // which step the motor is on - this->speed = 0; // the motor speed, in revolutions per minute - this->direction = 0; // motor direction - this->last_step_time = 0; // time stamp in ms of the last step taken - this->number_of_steps = number_of_steps; // total number of steps for this motor - - // Arduino pins for the motor control connection: - this->motor_pin_1 = motor_pin_1; - this->motor_pin_2 = motor_pin_2; - this->motor_pin_3 = motor_pin_3; - this->motor_pin_4 = motor_pin_4; - - // setup the pins on the microcontroller: - pinMode(this->motor_pin_1, OUTPUT); - pinMode(this->motor_pin_2, OUTPUT); - pinMode(this->motor_pin_3, OUTPUT); - pinMode(this->motor_pin_4, OUTPUT); - - // pin_count is used by the stepMotor() method: - this->pin_count = 4; -} - -/* - Sets the speed in revs per minute - -*/ -void Stepper::setSpeed(long whatSpeed) -{ - this->step_delay = 60L * 1000L / this->number_of_steps / whatSpeed; -} - -/* - Moves the motor steps_to_move steps. If the number is negative, - the motor moves in the reverse direction. - */ -void Stepper::step(int steps_to_move) -{ - int steps_left = abs(steps_to_move); // how many steps to take - - // determine direction based on whether steps_to_mode is + or -: - if (steps_to_move > 0) {this->direction = 1;} - if (steps_to_move < 0) {this->direction = 0;} - - - // decrement the number of steps, moving one step each time: - while(steps_left > 0) { - // move only if the appropriate delay has passed: - if (millis() - this->last_step_time >= this->step_delay) { - // get the timeStamp of when you stepped: - this->last_step_time = millis(); - // increment or decrement the step number, - // depending on direction: - if (this->direction == 1) { - this->step_number++; - if (this->step_number == this->number_of_steps) { - this->step_number = 0; - } - } - else { - if (this->step_number == 0) { - this->step_number = this->number_of_steps; - } - this->step_number--; - } - // decrement the steps left: - steps_left--; - // step the motor to step number 0, 1, 2, or 3: - stepMotor(this->step_number % 4); - } - } -} - -/* - * Moves the motor forward or backwards. - */ -void Stepper::stepMotor(int thisStep) -{ - if (this->pin_count == 2) { - switch (thisStep) { - case 0: /* 01 */ - digitalWrite(motor_pin_1, LOW); - digitalWrite(motor_pin_2, HIGH); - break; - case 1: /* 11 */ - digitalWrite(motor_pin_1, HIGH); - digitalWrite(motor_pin_2, HIGH); - break; - case 2: /* 10 */ - digitalWrite(motor_pin_1, HIGH); - digitalWrite(motor_pin_2, LOW); - break; - case 3: /* 00 */ - digitalWrite(motor_pin_1, LOW); - digitalWrite(motor_pin_2, LOW); - break; - } - } - if (this->pin_count == 4) { - switch (thisStep) { - case 0: // 1010 - digitalWrite(motor_pin_1, HIGH); - digitalWrite(motor_pin_2, LOW); - digitalWrite(motor_pin_3, HIGH); - digitalWrite(motor_pin_4, LOW); - break; - case 1: // 0110 - digitalWrite(motor_pin_1, LOW); - digitalWrite(motor_pin_2, HIGH); - digitalWrite(motor_pin_3, HIGH); - digitalWrite(motor_pin_4, LOW); - break; - case 2: //0101 - digitalWrite(motor_pin_1, LOW); - digitalWrite(motor_pin_2, HIGH); - digitalWrite(motor_pin_3, LOW); - digitalWrite(motor_pin_4, HIGH); - break; - case 3: //1001 - digitalWrite(motor_pin_1, HIGH); - digitalWrite(motor_pin_2, LOW); - digitalWrite(motor_pin_3, LOW); - digitalWrite(motor_pin_4, HIGH); - break; - } - } -} - -/* - version() returns the version of the library: -*/ -int Stepper::version(void) -{ - return 4; -} -- cgit v1.2.3-18-g5258