EE149
/
FinalProject
Final Project files for mBed development.
main.c
- Committer:
- lsaristo
- Date:
- 2014-11-16
- Revision:
- 13:070846d87d4a
- Parent:
- 12:1aa6b8a74136
- Child:
- 14:41fa8b95a9ab
- Child:
- 15:14d4e7021125
File content as of revision 13:070846d87d4a:
/** * @file driver.c * @brief Basic driver program for our robot's controller logic. * * Maybe add lots of stuff here or maybe split it off into * multiple subfiles? * * @author John Wilkey */ #include "main.h" #include "control.h" /** * These are global data Used externally in all other files */ m3pi pi; Timer timer; // // Digital inputs to the mBed DigitalIn start_button(p21); // // Digital outputs from the mBed. Note that by default these are // used to drive the 8 LED's on the top board. DigitalOut pin15(p15); DigitalOut pin16(p16); DigitalOut pin17(p17); DigitalOut pin18(p18); DigitalOut pin19(p19); DigitalOut pin20(p20); // // mBed onboard LEDs DigitalOut oled_1(LED1); DigitalOut oled_2(LED2); DigitalOut oled_3(LED3); DigitalOut oled_4(LED4); /** * @brief Entry point. Main loop. */ int main() { // // Basic setup information start_button.mode(PullUp); // // Drawing environment calibration. pi.sensor_auto_calibrate(); pi.backward(DRIVE_SPEED); float pos; float over_thresh = 0.5; float correction = 0.1; do { pos = pi.line_position(); if(pos > over_thresh) { pi.right_motor(DRIVE_SPEED); pi.left_motor(DRIVE_SPEED - correction); } else if(pos < -over_thresh) { pi.left_motor(DRIVE_SPEED); pi.right_motor(DRIVE_SPEED - correction); } else { pi.forward(DRIVE_SPEED); } pi.cls(); pi.locate(0,0); pi.printf("P: %f", pos); } while(pos != -1 && pos != 1); if(pos == 1) { timer.start(); pi.forward(DRIVE_SPEED); } else { pi.stop(); pi.cls(); pi.locate(0,0); pi.printf("LP: %f",pos); while(1); } while(pi.line_position() == 1); do { pos = pi.line_position(); if(pos > over_thresh) { pi.right_motor(DRIVE_SPEED); pi.left_motor(DRIVE_SPEED - correction); } else if(pos < -over_thresh) { pi.left_motor(DRIVE_SPEED); pi.right_motor(DRIVE_SPEED - correction); } else { pi.forward(DRIVE_SPEED); } pi.cls(); pi.locate(0,0); pi.printf("Pos: %f", pos); } while(pos != -1 && pos != 1); if(pos == 1) { oled_1 = 1; timer.stop(); pi.stop(); } else { pi.stop(); pi.cls(); pi.locate(0,0); pi.printf("LP:%f", pos); while(1); } // // Main program loop. // robot_loop(); // // We should never reach this point! while(1); } int forward(int amt) { Timer t; t.start(); oled_2 = 1; pi.locate(0,0); pi.printf("Fwd %d", amt); pi.forward(DRIVE_SPEED); while(t.read_ms() < amt*DRIVE_RATE*1000); t.stop(); oled_2 = 0; pi.stop(); return EXIT_SUCCESS; } int backward(int amt) { Timer t; oled_3 = 1; pi.locate(0,0); pi.printf("Back %d", amt); pi.backward(DRIVE_SPEED); t.start(); while(t.read_ms() < amt*DRIVE_RATE*1000); t.stop(); oled_3 = 0; pi.stop(); return EXIT_SUCCESS; } int right(float deg) { Timer t; oled_4 = 1; pi.locate(0,0); pi.printf("Right %f", deg); pi.right(TURN_SPEED); t.start(); while(t.read_ms() < (deg/360)*1000); t.stop(); oled_4 = 0; pi.stop(); return EXIT_SUCCESS; } int left(float deg) { Timer t; oled_4 = 1; oled_2 = 1; pi.locate(0,0); pi.printf("Left %f", deg); pi.left(TURN_SPEED); t.start(); while(t.read_ms() < (deg/360)*1000); t.stop(); oled_4 = 0; oled_2 = 0; pi.stop(); return EXIT_SUCCESS; } void pen_down() { oled_1 = 1; } void pen_up() { oled_1 = 0; }