A program that connects a distance sensor to the m3pi and avoids obstacles.

Dependencies:   mbed m3pi

Files at this revision

API Documentation at this revision

Comitter:
kanpapa
Date:
Wed Nov 23 14:26:08 2011 +0000
Parent:
0:1c32a3ae67e1
Commit message:
alpha version

Changed in this revision

m3pi.lib Show annotated file Show diff for this revision Revisions of this file
m3pi/m3pi.cpp Show diff for this revision Revisions of this file
m3pi/m3pi.h Show diff for this revision Revisions of this file
diff -r 1c32a3ae67e1 -r 97befd99f2b7 m3pi.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m3pi.lib	Wed Nov 23 14:26:08 2011 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/chris/code/m3pi/#4b7d6ea9b35b
diff -r 1c32a3ae67e1 -r 97befd99f2b7 m3pi/m3pi.cpp
--- a/m3pi/m3pi.cpp	Wed Nov 23 14:15:24 2011 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,219 +0,0 @@
-/* m3pi Library
- *
- * Copyright (c) 2007-2010 cstyles
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "mbed.h"
-#include "m3pi.h"
-
-m3pi::m3pi(PinName nrst, PinName tx, PinName rx) :  Stream("m3pi"), _nrst(nrst), _ser(tx, rx)  {
-    _ser.baud(115200);
-    reset();
-}
-
-m3pi::m3pi() :  Stream("m3pi"), _nrst(p23), _ser(p9, p10)  {
-    _ser.baud(115200);
-    reset();
-}
-
-
-void m3pi::reset () {
-    _nrst = 0;
-    wait (0.01);
-    _nrst = 1;
-    wait (0.1);
-}
-
-void m3pi::left_motor (float speed) {
-    motor(0,speed);
-}
-
-void m3pi::right_motor (float speed) {
-    motor(1,speed);
-}
-
-void m3pi::forward (float speed) {
-    motor(0,speed);
-    motor(1,speed);
-}
-
-void m3pi::backward (float speed) {
-    motor(0,-1.0*speed);
-    motor(1,-1.0*speed);
-}
-
-void m3pi::left (float speed) {
-    motor(0,speed);
-    motor(1,-1.0*speed);
-}
-
-void m3pi::right (float speed) {
-    motor(0,-1.0*speed);
-    motor(1,speed);
-}
-
-void m3pi::stop (void) {
-    motor(0,0.0);
-    motor(1,0.0);
-}
-
-void m3pi::motor (int motor, float speed) {
-    char opcode = 0x0;
-    if (speed > 0.0) {
-        if (motor==1)
-            opcode = M1_FORWARD;
-        else
-            opcode = M2_FORWARD;
-    } else {
-        if (motor==1)
-            opcode = M1_BACKWARD;
-        else
-            opcode = M2_BACKWARD;
-    }
-    unsigned char arg = 0x7f * abs(speed);
-
-    _ser.putc(opcode);
-    _ser.putc(arg);
-}
-
-float m3pi::battery() {
-    _ser.putc(SEND_BATTERY_MILLIVOLTS);
-    char lowbyte = _ser.getc();
-    char hibyte  = _ser.getc();
-    float v = ((lowbyte + (hibyte << 8))/1000.0);
-    return(v);
-}
-
-float m3pi::line_position() {
-    int pos = 0;
-    _ser.putc(SEND_LINE_POSITION);
-    pos = _ser.getc();
-    pos += _ser.getc() << 8;
-    
-    float fpos = ((float)pos - 2048.0)/2048.0;
-    return(fpos);
-}
-
-char m3pi::sensor_auto_calibrate() {
-    _ser.putc(AUTO_CALIBRATE);
-    return(_ser.getc());
-}
-
-
-void m3pi::calibrate(void) {
-    _ser.putc(PI_CALIBRATE);
-}
-
-void m3pi::reset_calibration() {
-    _ser.putc(LINE_SENSORS_RESET_CALIBRATION);
-}
-
-void m3pi::PID_start(int max_speed, int a, int b, int c, int d) {
-    _ser.putc(max_speed);
-    _ser.putc(a);
-    _ser.putc(b);
-    _ser.putc(c);
-    _ser.putc(d);
-}
-
-void m3pi::PID_stop() {
-    _ser.putc(STOP_PID);
-}
-
-float m3pi::pot_voltage(void) {
-    int volt = 0;
-    _ser.putc(SEND_TRIMPOT);
-    volt = _ser.getc();
-    volt += _ser.getc() << 8;
-    return(volt);
-}
-
-
-void m3pi::leds(int val) {
-
-    BusOut _leds(p20,p19,p18,p17,p16,p15,p14,p13);
-    _leds = val;
-}
-
-
-void m3pi::locate(int x, int y) {
-    _ser.putc(DO_LCD_GOTO_XY);
-    _ser.putc(x);
-    _ser.putc(y);
-}
-
-void m3pi::cls(void) {
-    _ser.putc(DO_CLEAR);
-}
-
-int m3pi::print (char* text, int length) {
-    _ser.putc(DO_PRINT);  
-    _ser.putc(length);       
-    for (int i = 0 ; i < length ; i++) {
-        _ser.putc(text[i]); 
-    }
-    return(0);
-}
-
-int m3pi::_putc (int c) {
-    _ser.putc(DO_PRINT);  
-    _ser.putc(0x1);       
-    _ser.putc(c);         
-    wait (0.001);
-    return(c);
-}
-
-int m3pi::_getc (void) {
-    char r = 0;
-    return(r);
-}
-
-int m3pi::putc (int c) {
-    return(_ser.putc(c));
-}
-
-int m3pi::getc (void) {
-    return(_ser.getc());
-}
-
-
-
-
-
-#ifdef MBED_RPC
-const rpc_method *m3pi::get_rpc_methods() {
-    static const rpc_method rpc_methods[] = {{ "forward", rpc_method_caller<m3pi, float, &m3pi::forward> },
-        { "backward", rpc_method_caller<m3pi, float, &m3pi::backward> },
-        { "left", rpc_method_caller<m3pi, float, &m3pi::left> },
-        { "right", rpc_method_caller<m3pi, float, &m3pi::right> },
-        { "stop", rpc_method_caller<m3pi, &m3pi::stop> },
-        { "left_motor", rpc_method_caller<m3pi, float, &m3pi::left_motor> },
-        { "right_motor", rpc_method_caller<m3pi, float, &m3pi::right_motor> },
-        { "battery", rpc_method_caller<float, m3pi, &m3pi::battery> },
-        { "line_position", rpc_method_caller<float, m3pi, &m3pi::line_position> },
-        { "sensor_auto_calibrate", rpc_method_caller<char, m3pi, &m3pi::sensor_auto_calibrate> },
-
-
-        RPC_METHOD_SUPER(Base)
-    };
-    return rpc_methods;
-}
-#endif
diff -r 1c32a3ae67e1 -r 97befd99f2b7 m3pi/m3pi.h
--- a/m3pi/m3pi.h	Wed Nov 23 14:15:24 2011 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,236 +0,0 @@
-/* mbed m3pi Library
- * Copyright (c) 2007-2010 cstyles
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#ifndef M3PI_H
-#define M3PI_H
-
-#include "mbed.h"
-#include "platform.h"
-
-#ifdef MBED_RPC
-#include "rpc.h"
-#endif
-
-#define SEND_SIGNATURE 0x81
-#define SEND_RAW_SENSOR_VALUES 0x86
-#define SEND_TRIMPOT 0xB0
-#define SEND_BATTERY_MILLIVOLTS 0xB1
-#define DO_PLAY 0xB3
-#define PI_CALIBRATE 0xB4
-#define DO_CLEAR 0xB7
-#define DO_PRINT 0xB8
-#define DO_LCD_GOTO_XY 0xB9
-#define LINE_SENSORS_RESET_CALIBRATION 0xB5
-#define SEND_LINE_POSITION 0xB6
-#define AUTO_CALIBRATE 0xBA
-#define SET_PID 0xBB
-#define STOP_PID 0xBC
-#define M1_FORWARD 0xC1
-#define M1_BACKWARD 0xC2
-#define M2_FORWARD 0xC5
-#define M2_BACKWARD 0xC6
-
-
-
-/** m3pi control class
- *
- * Example:
- * @code
- * // Drive the m3pi forward, turn left, back, turn right, at half speed for half a second
-
-   #include "mbed.h"
-   #include "m3pi.h"
-
-   m3pi pi;
-
-   int main() {
-
-     wait(0.5);
-
-     pi.forward(0.5);
-     wait (0.5);
-     pi.left(0.5);
-     wait (0.5);
-     pi.backward(0.5);
-     wait (0.5);
-     pi.right(0.5);
-     wait (0.5);
-
-     pi.stop();
-
- }
- * @endcode
- */
-class m3pi :  public Stream {
-
-    // Public functions
-public:
-
-    /** Create the m3pi object connected to the default pins
-     *
-     * @param nrst GPIO pin used for reset. Default is p23
-     * @param tx Serial transmit pin. Default is p9
-     * @param rx Serial receive pin. Default is p10
-     */
-    m3pi();
-
-
-    /** Create the m3pi object connected to specific pins
-     *
-     */
-    m3pi(PinName nrst, PinName tx, PinName rx);
-
-
-
-    /** Force a hardware reset of the 3pi
-     */
-    void reset (void);
-
-    /** Directly control the speed and direction of the left motor
-     *
-     * @param speed A normalised number -1.0 - 1.0 represents the full range.
-     */
-    void left_motor (float speed);
-
-    /** Directly control the speed and direction of the right motor
-     *
-     * @param speed A normalised number -1.0 - 1.0 represents the full range.
-     */
-    void right_motor (float speed);
-
-    /** Drive both motors forward as the same speed
-     *
-     * @param speed A normalised number 0 - 1.0 represents the full range.
-     */
-    void forward (float speed);
-
-    /** Drive both motors backward as the same speed
-     *
-     * @param speed A normalised number 0 - 1.0 represents the full range.
-     */
-    void backward (float speed);
-
-    /** Drive left motor backwards and right motor forwards at the same speed to turn on the spot
-     *
-     * @param speed A normalised number 0 - 1.0 represents the full range.
-     */
-    void left (float speed);
-
-    /** Drive left motor forward and right motor backwards at the same speed to turn on the spot
-     * @param speed A normalised number 0 - 1.0 represents the full range.
-     */
-    void right (float speed);
-
-    /** Stop both motors
-     *
-     */
-    void stop (void);
-
-    /** Read the voltage of the potentiometer on the 3pi
-     * @returns voltage as a float
-     *
-     */
-    float pot_voltage(void);
-
-    /** Read the battery voltage on the 3pi
-     * @returns battery voltage as a float
-     */
-    float battery(void);
-
-    /** Read the position of the detected line
-     * @returns position as A normalised number -1.0 - 1.0 represents the full range.
-     *  -1.0 means line is on the left, or the line has been lost
-     *   0.0 means the line is in the middle
-     *   1.0 means the line is on the right
-     */
-    float line_position (void);
-
-
-    /** Calibrate the sensors. This turns the robot left then right, looking for a line
-     *
-     */
-    char sensor_auto_calibrate (void);
-
-    /** Set calibration manually to the current settings.
-     *
-     */
-    void calibrate(void);
-
-    /** Clear the current calibration settings
-     *
-     */
-    void reset_calibration (void);
-
-    void PID_start(int max_speed, int a, int b, int c, int d);
-
-    void PID_stop();
-
-    /** Write to the 8 LEDs
-     *
-     * @param leds An 8 bit value to put on the LEDs
-     */
-    void leds(int val);
-
-    /** Locate the cursor on the 8x2 LCD
-     *
-     * @param x The horizontal position, from 0 to 7
-     * @param y The vertical position, from 0 to 1
-     */
-    void locate(int x, int y);
-
-    /** Clear the LCD
-     *
-     */
-    void cls(void);
-
-    /** Send a character directly to the 3pi serial interface
-     * @param c The character to send to the 3pi
-     */
-    int putc(int c);
-
-    /** Receive a character directly to the 3pi serial interface
-     * @returns c The character received from the 3pi
-     */
-    int getc();
-
-    /** Send a string buffer to the 3pi serial interface
-     * @param text A pointer to a char array
-     * @param int The character to send to the 3pi
-     */
-    int print(char* text, int length);
-
-#ifdef MBED_RPC
-    virtual const struct rpc_method *get_rpc_methods();
-#endif
-
-private :
-
-    DigitalOut _nrst;
-    Serial _ser;
-    
-    void motor (int motor, float speed);
-    virtual int _putc(int c);
-    virtual int _getc();
-
-};
-
-#endif
\ No newline at end of file