Robot Position Control using IMU and Hall effect sensor
Dependencies: LSM9DS1_Library_cal Motordriver PID mbed
Fork of Lab4 by
Diff: main.cpp
- Revision:
- 3:f41855c51aaf
- Parent:
- 1:4a490de4c2a4
--- a/main.cpp Thu Nov 03 14:16:52 2016 +0000 +++ b/main.cpp Fri Nov 04 00:11:18 2016 +0000 @@ -10,7 +10,7 @@ #define DECLINATION -4.94 // Declination (degrees) in Atlanta,GA. Motor LeftM(p21, p22, p23,1); // pwm, fwd, rev -Motor RightM(p26, p25, p24,1); +Motor RightM(p26, p27, p24,1); InterruptIn rhes(p15); InterruptIn lhes(p16); @@ -26,8 +26,12 @@ LSM9DS1 IMU(p9, p10, 0xD6, 0x3C); +PwmOut speaker(p25); + int countl = 0, countr = 0; - +int xx=0,yy=0; + +float note1 = 1568.0, note2 = 1396.9, note3 = 1244.5; // Calculate pitch, roll, and heading. // Pitch/roll calculations taken from this app note: // http://cache.freescale.com/files/sensors/doc/app_note/AN3461.pdf?fpsp=1 @@ -66,6 +70,14 @@ void move(float dist, int dir = 1){ led1 = 1; + + speaker.period(1.0/note1); + speaker =0.25; + wait(0.3); + speaker.period(1.0/note2); + wait(0.3); + speaker=0.0; + leftPid.setInputLimits(0, 1000); leftPid.setOutputLimits(0.0, 0.9); leftPid.setMode(AUTO_MODE); @@ -110,6 +122,14 @@ void turn(int direction){ led2 = 1; + + speaker.period(1.0/note2); + speaker =0.25; + wait(0.3); + speaker.period(1.0/note1); + wait(0.3); + speaker=0.0; + float head = 0, oldHead = 0,newHead = 0; oldHead = getHead(); head = oldHead; @@ -147,7 +167,29 @@ led2 = 0; countl = 0; countr = 0; - wait(1); + wait(0.5); +} + + +void coord(int x, int y){ + if (y>yy) + move((y-yy)*250,1); + else if (y<yy) + move((yy-y)*250,-1); + + if (x>xx){ + turn(1); + move((x-xx)*250,1); + turn(-1); + } + else if (x<xx){ + turn(-1); + move((xx-x)*250,1); + turn(1); + } + + xx=x; + yy=y; } int main() @@ -156,6 +198,8 @@ rhes.mode(PullUp); lhes.rise(&leftM_count); rhes.rise(&rightM_count); + xx=0; + yy=0; IMU.begin(); if (!IMU.begin()) { led1 = 1; @@ -168,27 +212,20 @@ IMU.calibrateMag(0); led3 = 0; wait(2); - /* - while (1){ - pc.printf("Heading: %f\n\r", getHead()); - wait (1); - } - */ - move(500); - wait(0.5); - turn(1); - wait(0.5); + +// while (1){ +// pc.printf("Heading: %f\n\r", getHead()); +// wait (1); +// } - move(500); - wait(0.5); - turn(1); - wait(0.5); + coord(0,2); + coord(2,2); + coord(2,0); + coord(0,0); - move(500); - wait(0.5); - turn(1); - wait(0.5); - - move(500); + speaker.period(1.0/note3); + speaker =0.25; + wait(1); + speaker=0.0; }