A system to help you ride your bike better than you do right now.
Dependencies: 4DGL-uLCD-SE SDFileSystem mbed LSM9DS1_Library_cal
main.cpp@5:436b39863099, 2016-12-05 (annotated)
- Committer:
- kswanson31
- Date:
- Mon Dec 05 00:42:57 2016 +0000
- Revision:
- 5:436b39863099
- Parent:
- 4:1928bf053958
- Child:
- 6:45a5043acc7e
fixed compiler issues with hall sensor
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
kswanson31 | 0:134f49df01f8 | 1 | #include "mbed.h" |
kswanson31 | 0:134f49df01f8 | 2 | #include "SDFileSystem.h" |
kswanson31 | 2:d08643ff3c62 | 3 | #include "uLCD_4DGL.h" |
kswanson31 | 3:26e0c0d7984f | 4 | #include <fstream> |
kswanson31 | 3:26e0c0d7984f | 5 | #include <iomanip> |
kswanson31 | 3:26e0c0d7984f | 6 | using namespace std; |
kswanson31 | 0:134f49df01f8 | 7 | |
kswanson31 | 3:26e0c0d7984f | 8 | #define START_S 1480719111 |
kswanson31 | 0:134f49df01f8 | 9 | |
kswanson31 | 4:1928bf053958 | 10 | #define LEFT 0xA |
kswanson31 | 4:1928bf053958 | 11 | #define RIGHT 0xB |
kswanson31 | 4:1928bf053958 | 12 | #define STOP 0xC |
kswanson31 | 4:1928bf053958 | 13 | #define GO 0xD |
kswanson31 | 4:1928bf053958 | 14 | |
kswanson31 | 4:1928bf053958 | 15 | int lightState; |
kswanson31 | 4:1928bf053958 | 16 | |
kswanson31 | 3:26e0c0d7984f | 17 | DigitalOut led(LED1); |
kswanson31 | 4:1928bf053958 | 18 | |
kswanson31 | 3:26e0c0d7984f | 19 | SDFileSystem sd(p11, p12, p13, p14, "sd"); //mosi -> DI, miso <- DO, slck -> sclck, CS -> CS |
kswanson31 | 3:26e0c0d7984f | 20 | uLCD_4DGL lcd(p28, p27, p29); |
kswanson31 | 0:134f49df01f8 | 21 | |
kswanson31 | 4:1928bf053958 | 22 | // speed sensor |
kswanson31 | 4:1928bf053958 | 23 | InterruptIn hallSensor(p8); |
kswanson31 | 4:1928bf053958 | 24 | Timer hallT; |
kswanson31 | 4:1928bf053958 | 25 | int stopped; |
kswanson31 | 4:1928bf053958 | 26 | |
kswanson31 | 3:26e0c0d7984f | 27 | float miles = 0; |
kswanson31 | 3:26e0c0d7984f | 28 | float speed = 0; |
kswanson31 | 3:26e0c0d7984f | 29 | float maxSpeed = 0; |
kswanson31 | 3:26e0c0d7984f | 30 | time_t seconds; |
kswanson31 | 3:26e0c0d7984f | 31 | |
kswanson31 | 3:26e0c0d7984f | 32 | void store_trip(); |
kswanson31 | 3:26e0c0d7984f | 33 | void recall_trips(); |
kswanson31 | 4:1928bf053958 | 34 | int get_state(); |
kswanson31 | 4:1928bf053958 | 35 | void pass(); |
kswanson31 | 0:134f49df01f8 | 36 | |
kswanson31 | 4:1928bf053958 | 37 | int main() { |
kswanson31 | 0:134f49df01f8 | 38 | // open the file for reading and appending records |
kswanson31 | 0:134f49df01f8 | 39 | // recall last trip |
kswanson31 | 3:26e0c0d7984f | 40 | recall_trips(); |
kswanson31 | 4:1928bf053958 | 41 | wait(10); |
kswanson31 | 0:134f49df01f8 | 42 | lcd.cls(); |
kswanson31 | 0:134f49df01f8 | 43 | |
kswanson31 | 0:134f49df01f8 | 44 | // normal operation loop here |
kswanson31 | 4:1928bf053958 | 45 | int going = 1; // cyclist is moving |
kswanson31 | 4:1928bf053958 | 46 | set_time(START_S); // Set RTC time |
kswanson31 | 4:1928bf053958 | 47 | |
kswanson31 | 4:1928bf053958 | 48 | hallSensor.fall(&pass); |
kswanson31 | 4:1928bf053958 | 49 | hallT.start(); // start the hall sensor timer |
kswanson31 | 4:1928bf053958 | 50 | |
kswanson31 | 3:26e0c0d7984f | 51 | while(going) { |
kswanson31 | 4:1928bf053958 | 52 | |
kswanson31 | 3:26e0c0d7984f | 53 | seconds = time(NULL) - START_S; // return the seconds passed since start |
kswanson31 | 2:d08643ff3c62 | 54 | |
kswanson31 | 4:1928bf053958 | 55 | if (hallT.read() > 6.0 && !stopped) { |
kswanson31 | 4:1928bf053958 | 56 | speed = 0.0; |
kswanson31 | 4:1928bf053958 | 57 | stopped = 1; |
kswanson31 | 4:1928bf053958 | 58 | } |
kswanson31 | 4:1928bf053958 | 59 | |
kswanson31 | 4:1928bf053958 | 60 | going = (hallT.read() > 20.0 && stopped) ? 0 : 1; |
kswanson31 | 4:1928bf053958 | 61 | maxSpeed = (speed > maxSpeed) ? speed : maxSpeed; |
kswanson31 | 3:26e0c0d7984f | 62 | |
kswanson31 | 4:1928bf053958 | 63 | lcd.locate(0, 1); |
kswanson31 | 4:1928bf053958 | 64 | lcd.printf("Distance : %3.1f\n\n", miles); |
kswanson31 | 4:1928bf053958 | 65 | lcd.printf("Top speed : %2.1f\n\n", speed); |
kswanson31 | 4:1928bf053958 | 66 | lcd.printf("Time : %1.1f\n\n", (float)seconds / 3600); |
kswanson31 | 4:1928bf053958 | 67 | |
kswanson31 | 4:1928bf053958 | 68 | // light states code |
kswanson31 | 5:436b39863099 | 69 | // lightstates = get_state(); |
kswanson31 | 2:d08643ff3c62 | 70 | } |
kswanson31 | 0:134f49df01f8 | 71 | |
kswanson31 | 0:134f49df01f8 | 72 | // store this trip |
kswanson31 | 0:134f49df01f8 | 73 | lcd.cls(); |
kswanson31 | 3:26e0c0d7984f | 74 | store_trip(); |
kswanson31 | 0:134f49df01f8 | 75 | |
kswanson31 | 0:134f49df01f8 | 76 | // end everything |
kswanson31 | 0:134f49df01f8 | 77 | } |
kswanson31 | 0:134f49df01f8 | 78 | |
kswanson31 | 3:26e0c0d7984f | 79 | void recall_trips(void) { |
kswanson31 | 0:134f49df01f8 | 80 | // display the most recent trip made on the screen |
kswanson31 | 0:134f49df01f8 | 81 | // display the most impressive trip (longest distance, best speed, least time) |
kswanson31 | 0:134f49df01f8 | 82 | |
kswanson31 | 3:26e0c0d7984f | 83 | float f_miles; |
kswanson31 | 3:26e0c0d7984f | 84 | float f_maxSpeed; |
kswanson31 | 3:26e0c0d7984f | 85 | float f_hours; |
kswanson31 | 3:26e0c0d7984f | 86 | ifstream file; |
kswanson31 | 0:134f49df01f8 | 87 | |
kswanson31 | 1:9d3f2e86392e | 88 | // read out the most recent trip |
kswanson31 | 3:26e0c0d7984f | 89 | file.open("/sd/records/recent.txt"); |
kswanson31 | 1:9d3f2e86392e | 90 | |
kswanson31 | 3:26e0c0d7984f | 91 | if (!file.is_open()) { |
kswanson31 | 1:9d3f2e86392e | 92 | lcd.locate(0, 1); |
kswanson31 | 3:26e0c0d7984f | 93 | lcd.printf("Could not open file\n"); |
kswanson31 | 1:9d3f2e86392e | 94 | } else { |
kswanson31 | 3:26e0c0d7984f | 95 | file >> f_miles >> f_maxSpeed >> f_hours; |
kswanson31 | 1:9d3f2e86392e | 96 | lcd.locate(0, 1); |
kswanson31 | 3:26e0c0d7984f | 97 | lcd.printf("Your last trip\n\n"); |
kswanson31 | 3:26e0c0d7984f | 98 | lcd.printf("Distance : %3.1f\n\n", f_miles); |
kswanson31 | 3:26e0c0d7984f | 99 | lcd.printf("Top speed : %2.1f\n\n", f_maxSpeed); |
kswanson31 | 3:26e0c0d7984f | 100 | lcd.printf("Time : %1.1f\n\n", f_hours); |
kswanson31 | 1:9d3f2e86392e | 101 | } |
kswanson31 | 1:9d3f2e86392e | 102 | |
kswanson31 | 3:26e0c0d7984f | 103 | file.close(); |
kswanson31 | 3:26e0c0d7984f | 104 | wait(0.5); |
kswanson31 | 3:26e0c0d7984f | 105 | |
kswanson31 | 3:26e0c0d7984f | 106 | // display the best trip |
kswanson31 | 3:26e0c0d7984f | 107 | |
kswanson31 | 3:26e0c0d7984f | 108 | file.open("/sd/records/best-of.txt"); |
kswanson31 | 3:26e0c0d7984f | 109 | |
kswanson31 | 3:26e0c0d7984f | 110 | if(!file.is_open()) { |
kswanson31 | 3:26e0c0d7984f | 111 | lcd.printf("Could not open file\n"); |
kswanson31 | 3:26e0c0d7984f | 112 | } else { |
kswanson31 | 3:26e0c0d7984f | 113 | // show the best trip |
kswanson31 | 3:26e0c0d7984f | 114 | file >> f_miles >> f_maxSpeed >> f_hours; |
kswanson31 | 3:26e0c0d7984f | 115 | lcd.printf("Your best trip\n\n"); |
kswanson31 | 3:26e0c0d7984f | 116 | lcd.printf("Distance : %3.1f\n\n", f_miles); |
kswanson31 | 3:26e0c0d7984f | 117 | lcd.printf("Top speed : %2.1f\n\n", f_maxSpeed); |
kswanson31 | 3:26e0c0d7984f | 118 | lcd.printf("Time : %1.1f\n\n", f_hours); |
kswanson31 | 3:26e0c0d7984f | 119 | } |
kswanson31 | 3:26e0c0d7984f | 120 | |
kswanson31 | 3:26e0c0d7984f | 121 | file.close(); |
kswanson31 | 3:26e0c0d7984f | 122 | wait(0.5); |
kswanson31 | 3:26e0c0d7984f | 123 | } |
kswanson31 | 1:9d3f2e86392e | 124 | |
kswanson31 | 3:26e0c0d7984f | 125 | void store_trip(void) { |
kswanson31 | 3:26e0c0d7984f | 126 | // store the most recent trip completed |
kswanson31 | 3:26e0c0d7984f | 127 | // determine whether this trip was a record, and indicate if so |
kswanson31 | 3:26e0c0d7984f | 128 | |
kswanson31 | 3:26e0c0d7984f | 129 | float hours; |
kswanson31 | 3:26e0c0d7984f | 130 | fstream file; |
kswanson31 | 3:26e0c0d7984f | 131 | |
kswanson31 | 3:26e0c0d7984f | 132 | file.open("/sd/records/recent.txt"); |
kswanson31 | 3:26e0c0d7984f | 133 | |
kswanson31 | 3:26e0c0d7984f | 134 | if (!file.is_open()) { |
kswanson31 | 3:26e0c0d7984f | 135 | lcd.locate(0, 1); |
kswanson31 | 3:26e0c0d7984f | 136 | lcd.printf("Could not open file\n"); |
kswanson31 | 3:26e0c0d7984f | 137 | } else { |
kswanson31 | 3:26e0c0d7984f | 138 | hours = (float)seconds / 3600; |
kswanson31 | 0:134f49df01f8 | 139 | lcd.locate(0, 1); |
kswanson31 | 3:26e0c0d7984f | 140 | lcd.printf("This trip\n\n"); |
kswanson31 | 3:26e0c0d7984f | 141 | lcd.printf("Distance : %3.1f\n\n", miles); |
kswanson31 | 3:26e0c0d7984f | 142 | lcd.printf("Top speed : %2.1f\n\n", maxSpeed); |
kswanson31 | 3:26e0c0d7984f | 143 | lcd.printf("Time : %1.1f\n\n", hours); |
kswanson31 | 3:26e0c0d7984f | 144 | // overwrite most recent |
kswanson31 | 3:26e0c0d7984f | 145 | file << fixed << setprecision(1) << miles << " " << maxSpeed << " " << hours << endl; |
kswanson31 | 3:26e0c0d7984f | 146 | } |
kswanson31 | 3:26e0c0d7984f | 147 | |
kswanson31 | 3:26e0c0d7984f | 148 | file.close(); |
kswanson31 | 3:26e0c0d7984f | 149 | wait(0.5); |
kswanson31 | 3:26e0c0d7984f | 150 | |
kswanson31 | 3:26e0c0d7984f | 151 | file.open("/sd/records/best-of.txt"); |
kswanson31 | 3:26e0c0d7984f | 152 | |
kswanson31 | 3:26e0c0d7984f | 153 | if (!file.is_open()) { |
kswanson31 | 3:26e0c0d7984f | 154 | lcd.locate(0, 1); |
kswanson31 | 3:26e0c0d7984f | 155 | lcd.printf("Could not open file\n"); |
kswanson31 | 0:134f49df01f8 | 156 | } else { |
kswanson31 | 0:134f49df01f8 | 157 | lcd.locate(0, 1); |
kswanson31 | 3:26e0c0d7984f | 158 | // check if you beat your best |
kswanson31 | 0:134f49df01f8 | 159 | } |
kswanson31 | 3:26e0c0d7984f | 160 | |
kswanson31 | 3:26e0c0d7984f | 161 | file.close(); |
kswanson31 | 4:1928bf053958 | 162 | } |
kswanson31 | 4:1928bf053958 | 163 | |
kswanson31 | 4:1928bf053958 | 164 | void pass(void) { |
kswanson31 | 4:1928bf053958 | 165 | // interrupt, performed when the hallsensor passes the magnet |
kswanson31 | 4:1928bf053958 | 166 | stopped = 0; // reset the global |
kswanson31 | 4:1928bf053958 | 167 | hallT.stop(); |
kswanson31 | 5:436b39863099 | 168 | speed = 0.00136364 / (hallT.read() / 3600); // current speed |
kswanson31 | 4:1928bf053958 | 169 | miles += 0.00136364; // circumference of the tire in miles |
kswanson31 | 5:436b39863099 | 170 | hallT.reset(); |
kswanson31 | 5:436b39863099 | 171 | hallT.start(); |
kswanson31 | 0:134f49df01f8 | 172 | } |