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main.cpp@0:9ab1097149ca, 2014-05-22 (annotated)
- Committer:
- mmpeter
- Date:
- Thu May 22 14:50:22 2014 +0000
- Revision:
- 0:9ab1097149ca
- Child:
- 1:4f52a001926a
IR + moving + turn
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mmpeter | 0:9ab1097149ca | 1 | #include "mbed.h" |
mmpeter | 0:9ab1097149ca | 2 | #include "m3pi_ng.h" |
mmpeter | 0:9ab1097149ca | 3 | #include "cmath" |
mmpeter | 0:9ab1097149ca | 4 | #include "iostream" |
mmpeter | 0:9ab1097149ca | 5 | |
mmpeter | 0:9ab1097149ca | 6 | //Access infared sensors |
mmpeter | 0:9ab1097149ca | 7 | DigitalIn m3pi_IN[] = {(p12)}; |
mmpeter | 0:9ab1097149ca | 8 | DigitalOut led_1(p13); |
mmpeter | 0:9ab1097149ca | 9 | |
mmpeter | 0:9ab1097149ca | 10 | using namespace std; |
mmpeter | 0:9ab1097149ca | 11 | |
mmpeter | 0:9ab1097149ca | 12 | m3pi thinggy; |
mmpeter | 0:9ab1097149ca | 13 | |
mmpeter | 0:9ab1097149ca | 14 | int main() { |
mmpeter | 0:9ab1097149ca | 15 | |
mmpeter | 0:9ab1097149ca | 16 | float speed = 0.25; |
mmpeter | 0:9ab1097149ca | 17 | float turn_speed = 0.2; |
mmpeter | 0:9ab1097149ca | 18 | float correction; |
mmpeter | 0:9ab1097149ca | 19 | float k = -0.3; |
mmpeter | 0:9ab1097149ca | 20 | int sensor[5]; |
mmpeter | 0:9ab1097149ca | 21 | int returned; |
mmpeter | 0:9ab1097149ca | 22 | thinggy.locate(0,1); |
mmpeter | 0:9ab1097149ca | 23 | thinggy.printf("Villan"); |
mmpeter | 0:9ab1097149ca | 24 | thinggy.locate(0,0); |
mmpeter | 0:9ab1097149ca | 25 | thinggy.printf("Pimpin"); |
mmpeter | 0:9ab1097149ca | 26 | |
mmpeter | 0:9ab1097149ca | 27 | wait(1.0); |
mmpeter | 0:9ab1097149ca | 28 | |
mmpeter | 0:9ab1097149ca | 29 | thinggy.sensor_auto_calibrate(); |
mmpeter | 0:9ab1097149ca | 30 | |
mmpeter | 0:9ab1097149ca | 31 | thinggy.calibrated_sensor(sensor); |
mmpeter | 0:9ab1097149ca | 32 | |
mmpeter | 0:9ab1097149ca | 33 | //find the average of the three sensors |
mmpeter | 0:9ab1097149ca | 34 | returned = (sensor[1] + sensor[2] + sensor[3])/3; |
mmpeter | 0:9ab1097149ca | 35 | |
mmpeter | 0:9ab1097149ca | 36 | while(1) { |
mmpeter | 0:9ab1097149ca | 37 | |
mmpeter | 0:9ab1097149ca | 38 | //check if it needs to turn |
mmpeter | 0:9ab1097149ca | 39 | while(returned <= 240){ |
mmpeter | 0:9ab1097149ca | 40 | //turns right |
mmpeter | 0:9ab1097149ca | 41 | while(sensor[0] < sensor[4] && thinggy.line_position() != 0){ |
mmpeter | 0:9ab1097149ca | 42 | thinggy.left_motor(turn_speed); |
mmpeter | 0:9ab1097149ca | 43 | thinggy.right_motor(-turn_speed); |
mmpeter | 0:9ab1097149ca | 44 | thinggy.calibrated_sensor(sensor); |
mmpeter | 0:9ab1097149ca | 45 | } |
mmpeter | 0:9ab1097149ca | 46 | //turns left |
mmpeter | 0:9ab1097149ca | 47 | while(sensor[4] > sensor[0] && thinggy.line_position() != 0){ |
mmpeter | 0:9ab1097149ca | 48 | thinggy.left_motor(-turn_speed); |
mmpeter | 0:9ab1097149ca | 49 | thinggy.right_motor(turn_speed); |
mmpeter | 0:9ab1097149ca | 50 | thinggy.calibrated_sensor(sensor); |
mmpeter | 0:9ab1097149ca | 51 | } |
mmpeter | 0:9ab1097149ca | 52 | thinggy.calibrated_sensor(sensor); |
mmpeter | 0:9ab1097149ca | 53 | returned = (sensor[1] + sensor[2] + sensor[3])/3; |
mmpeter | 0:9ab1097149ca | 54 | }//while returned <= 220 |
mmpeter | 0:9ab1097149ca | 55 | |
mmpeter | 0:9ab1097149ca | 56 | // Curves and straightaways |
mmpeter | 0:9ab1097149ca | 57 | while(returned > 240){ |
mmpeter | 0:9ab1097149ca | 58 | float position = thinggy.line_position(); |
mmpeter | 0:9ab1097149ca | 59 | correction = k*(position); |
mmpeter | 0:9ab1097149ca | 60 | |
mmpeter | 0:9ab1097149ca | 61 | // -1.0 is far left, 1.0 is far right, 0.0 in the middle |
mmpeter | 0:9ab1097149ca | 62 | |
mmpeter | 0:9ab1097149ca | 63 | //speed limiting for right motor |
mmpeter | 0:9ab1097149ca | 64 | if(speed + correction > 1){ |
mmpeter | 0:9ab1097149ca | 65 | thinggy.right_motor(0.6); |
mmpeter | 0:9ab1097149ca | 66 | thinggy.left_motor(speed-correction); |
mmpeter | 0:9ab1097149ca | 67 | } |
mmpeter | 0:9ab1097149ca | 68 | |
mmpeter | 0:9ab1097149ca | 69 | //speed limiting for left motor |
mmpeter | 0:9ab1097149ca | 70 | if(speed - correction > 1){ |
mmpeter | 0:9ab1097149ca | 71 | thinggy.left_motor(0.6); |
mmpeter | 0:9ab1097149ca | 72 | thinggy.right_motor(speed+correction); |
mmpeter | 0:9ab1097149ca | 73 | } |
mmpeter | 0:9ab1097149ca | 74 | else{ |
mmpeter | 0:9ab1097149ca | 75 | thinggy.left_motor(speed-correction); |
mmpeter | 0:9ab1097149ca | 76 | thinggy.right_motor(speed+correction); |
mmpeter | 0:9ab1097149ca | 77 | |
mmpeter | 0:9ab1097149ca | 78 | //Infared: stop if obstructed |
mmpeter | 0:9ab1097149ca | 79 | m3pi_IN[0].mode(PullUp); |
mmpeter | 0:9ab1097149ca | 80 | while (m3pi_IN[0]==0){ |
mmpeter | 0:9ab1097149ca | 81 | thinggy.stop(); |
mmpeter | 0:9ab1097149ca | 82 | } |
mmpeter | 0:9ab1097149ca | 83 | } |
mmpeter | 0:9ab1097149ca | 84 | thinggy.calibrated_sensor(sensor); |
mmpeter | 0:9ab1097149ca | 85 | returned = (sensor[1] + sensor[2] + sensor[3])/3; |
mmpeter | 0:9ab1097149ca | 86 | }//while returned > 220 |
mmpeter | 0:9ab1097149ca | 87 | |
mmpeter | 0:9ab1097149ca | 88 | }//while(1) |
mmpeter | 0:9ab1097149ca | 89 | } |
mmpeter | 0:9ab1097149ca | 90 | |
mmpeter | 0:9ab1097149ca | 91 |