megan gimple / Mbed 2 deprecated OCE360_Final_Project

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Dependencies:   mbed MMA8452Q MS5837 SDFileSystem SCI_SENSOR

main.cpp@5:17f2b3e61112, 2021-11-30 (annotated)

Committer:
mgimple
Date:
Tue Nov 30 15:08:01 2021 +0000
Revision:
5:17f2b3e61112
Parent:
4:d87b1e40d419
Child:
6:5f55105701ac
defining global variable "on_time"; pull/push

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elizabethtaylor 2:a3b55216ffbd 1 //Eliza
mgimple 3:22a86bc49f44 2 //Megan
slicht_instructor 0:6e97f9a6aca0 3 /*
slicht_instructor 0:6e97f9a6aca0 4 Author Mingxi Zhou
slicht_instructor 0:6e97f9a6aca0 5 OCE360 underwater float template program
slicht_instructor 0:6e97f9a6aca0 6 */
slicht_instructor 0:6e97f9a6aca0 7 #include "mbed.h"
slicht_instructor 0:6e97f9a6aca0 8 #include "MMA8452Q.h" //accelerometer library
slicht_instructor 0:6e97f9a6aca0 9 #include "MS5837.h" //pressure sensor library***
mgimple 1:e1a2b47c3098 10 #include "SCI_SENSOR.h" //science sensor library, photocell, temperature cell
slicht_instructor 0:6e97f9a6aca0 11 #include "SDFileSystem.h" // SD card library
slicht_instructor 0:6e97f9a6aca0 12
slicht_instructor 0:6e97f9a6aca0 13 DigitalOut led1(LED1);
slicht_instructor 0:6e97f9a6aca0 14 DigitalOut led2(LED2);
slicht_instructor 0:6e97f9a6aca0 15
mgimple 1:e1a2b47c3098 16 Serial pc(USBTX, USBRX); //initial serial
mgimple 1:e1a2b47c3098 17 Serial BLE(p13,p14); //Bluetooth
mgimple 1:e1a2b47c3098 18 MMA8452Q accel(p28,p27,0x1D); //initial accelerometer
mgimple 1:e1a2b47c3098 19 LM19 temp(p19); //temperature sensor
mgimple 1:e1a2b47c3098 20 PhotoCell light(p20); //photocell
slicht_instructor 0:6e97f9a6aca0 21 MS5837 p_sensor(p9, p10, ms5837_addr_no_CS); //pressure sensor
slicht_instructor 0:6e97f9a6aca0 22 PwmOut thruster(p21); //set PWM pin //max 1.3ms min 1.1ms
slicht_instructor 0:6e97f9a6aca0 23 PwmOut thruster2(p22); //set PWM pin
slicht_instructor 0:6e97f9a6aca0 24 SDFileSystem sd(p5, p6, p7, p8, "sd"); // the pinout on the mbed Cool Components workshop board
slicht_instructor 0:6e97f9a6aca0 25
slicht_instructor 0:6e97f9a6aca0 26 //global ticker
slicht_instructor 0:6e97f9a6aca0 27 Ticker log_ticker;
slicht_instructor 0:6e97f9a6aca0 28 Ticker accel_ticker;
mgimple 1:e1a2b47c3098 29
slicht_instructor 0:6e97f9a6aca0 30 // global timer
slicht_instructor 0:6e97f9a6aca0 31 Timer t;
slicht_instructor 0:6e97f9a6aca0 32
slicht_instructor 0:6e97f9a6aca0 33 ///File
slicht_instructor 0:6e97f9a6aca0 34 FILE *fp;
slicht_instructor 0:6e97f9a6aca0 35 char fname[100];
slicht_instructor 0:6e97f9a6aca0 36 float PI = 3.14159265358979323846f;
slicht_instructor 0:6e97f9a6aca0 37
slicht_instructor 0:6e97f9a6aca0 38 //float operation parameters
mgimple 1:e1a2b47c3098 39 float target_depth=0; //global target depth default 0
mgimple 1:e1a2b47c3098 40 int yo_num=0; //global yo_num default 0
mgimple 1:e1a2b47c3098 41 float thrust_on_time=0; //global thrust_on time default 0
mgimple 1:e1a2b47c3098 42 float accelData[3]; //global accel data
slicht_instructor 0:6e97f9a6aca0 43
slicht_instructor 0:6e97f9a6aca0 44 //functions
slicht_instructor 0:6e97f9a6aca0 45 void welcome();
slicht_instructor 0:6e97f9a6aca0 46 void log_data();
mgimple 4:d87b1e40d419 47
slicht_instructor 0:6e97f9a6aca0 48 //IMU related
slicht_instructor 0:6e97f9a6aca0 49 void accel_update(); //update accelerometer related variables. we use imu_ticker to call this function
mgimple 5:17f2b3e61112 50
slicht_instructor 0:6e97f9a6aca0 51 //Control related functions
slicht_instructor 0:6e97f9a6aca0 52 void thrust_on(float pw, float on_time); //input is pulse width
slicht_instructor 0:6e97f9a6aca0 53
mgimple 5:17f2b3e61112 54 //Control Parameters
mgimple 5:17f2b3e61112 55 float on_time = 5; //on for 5 seconds part one
mgimple 5:17f2b3e61112 56
slicht_instructor 0:6e97f9a6aca0 57 //-------------Main functions-----------------------------------------------------------------------------------------
slicht_instructor 0:6e97f9a6aca0 58 int main()
slicht_instructor 0:6e97f9a6aca0 59 {
slicht_instructor 0:6e97f9a6aca0 60 //-----Initialization realted code-------//
slicht_instructor 0:6e97f9a6aca0 61 //inital set the thruster esc to 1ms duty cycle
slicht_instructor 0:6e97f9a6aca0 62 thruster.period(0.002); // 2 ms period
slicht_instructor 0:6e97f9a6aca0 63 thruster.pulsewidth(1.0/1000.000);
mgimple 4:d87b1e40d419 64
slicht_instructor 0:6e97f9a6aca0 65 //Initialize accelerometer:
slicht_instructor 0:6e97f9a6aca0 66 accel.init();
slicht_instructor 0:6e97f9a6aca0 67 led1=1;
mgimple 4:d87b1e40d419 68
slicht_instructor 0:6e97f9a6aca0 69 //initialize pressure sensor
slicht_instructor 0:6e97f9a6aca0 70 pc.printf("setting the pressure sensor\r\n");
slicht_instructor 0:6e97f9a6aca0 71 p_sensor.MS5837Reset();
slicht_instructor 0:6e97f9a6aca0 72 p_sensor.MS5837Init();
slicht_instructor 0:6e97f9a6aca0 73 pc.printf("settting the tickers\r\n");
slicht_instructor 0:6e97f9a6aca0 74 t.start();
slicht_instructor 0:6e97f9a6aca0 75 led2=1;
slicht_instructor 0:6e97f9a6aca0 76 welcome();
mgimple 4:d87b1e40d419 77
slicht_instructor 0:6e97f9a6aca0 78 //-----setup ticker-------//
slicht_instructor 0:6e97f9a6aca0 79 //setup ticker to separate log and IMU data update.
slicht_instructor 0:6e97f9a6aca0 80 //so we could have all our control code in the while loop
slicht_instructor 0:6e97f9a6aca0 81 // //log at 2 Hz
slicht_instructor 0:6e97f9a6aca0 82 accel_ticker.attach(&accel_update,0.1); //10Hz
slicht_instructor 0:6e97f9a6aca0 83 log_ticker.attach(&log_data,0.5);
slicht_instructor 0:6e97f9a6aca0 84 wait(1);
slicht_instructor 0:6e97f9a6aca0 85 while(1)
slicht_instructor 0:6e97f9a6aca0 86 {
mgimple 5:17f2b3e61112 87
slicht_instructor 0:6e97f9a6aca0 88 // put your main control code here
slicht_instructor 0:6e97f9a6aca0 89 }
slicht_instructor 0:6e97f9a6aca0 90
slicht_instructor 0:6e97f9a6aca0 91 }
slicht_instructor 0:6e97f9a6aca0 92
slicht_instructor 0:6e97f9a6aca0 93 //-------------Customized functions---------------------------------------------//----------------------------------------
slicht_instructor 0:6e97f9a6aca0 94 ///-----------Welcome menu---------------------///
slicht_instructor 0:6e97f9a6aca0 95 void welcome()
slicht_instructor 0:6e97f9a6aca0 96 {
slicht_instructor 0:6e97f9a6aca0 97 char buffer[100]={0};
slicht_instructor 0:6e97f9a6aca0 98 int flag=1;
slicht_instructor 0:6e97f9a6aca0 99 //Flush the port
slicht_instructor 0:6e97f9a6aca0 100 while(BLE.readable())
slicht_instructor 0:6e97f9a6aca0 101 {
slicht_instructor 0:6e97f9a6aca0 102 BLE.getc();
slicht_instructor 0:6e97f9a6aca0 103 }
slicht_instructor 0:6e97f9a6aca0 104 while(flag)
slicht_instructor 0:6e97f9a6aca0 105 {
slicht_instructor 0:6e97f9a6aca0 106 BLE.printf("### I am alive\r\n");
slicht_instructor 0:6e97f9a6aca0 107 BLE.printf("### Please enter the log file name you want\r\n");
slicht_instructor 0:6e97f9a6aca0 108 if(BLE.readable())
slicht_instructor 0:6e97f9a6aca0 109 {
slicht_instructor 0:6e97f9a6aca0 110 BLE.scanf("%s",buffer);
slicht_instructor 0:6e97f9a6aca0 111 sprintf(fname,"/sd/mydir/%s.txt",buffer); //make file name
slicht_instructor 0:6e97f9a6aca0 112
slicht_instructor 0:6e97f9a6aca0 113 flag = 0; //set the flag to 0 to break the while
slicht_instructor 0:6e97f9a6aca0 114 }
slicht_instructor 0:6e97f9a6aca0 115 wait(1);
slicht_instructor 0:6e97f9a6aca0 116 }
slicht_instructor 0:6e97f9a6aca0 117 //print name
slicht_instructor 0:6e97f9a6aca0 118 BLE.printf("### name received\r\n");
slicht_instructor 0:6e97f9a6aca0 119 BLE.printf("### file name and directory is: \r\n %s\r\n",fname); //file name and location
slicht_instructor 0:6e97f9a6aca0 120 //open file test
slicht_instructor 0:6e97f9a6aca0 121 mkdir("/sd/mydir",0777); //keep 0777, this is magic #
slicht_instructor 0:6e97f9a6aca0 122 fp = fopen(fname, "a");
slicht_instructor 0:6e97f9a6aca0 123 if(fp == NULL){
slicht_instructor 0:6e97f9a6aca0 124 BLE.printf("Could not open file for write\n");
slicht_instructor 0:6e97f9a6aca0 125 }
slicht_instructor 0:6e97f9a6aca0 126 else
slicht_instructor 0:6e97f9a6aca0 127 {
slicht_instructor 0:6e97f9a6aca0 128 BLE.printf("##file open good \n"); //open file and tell if open
slicht_instructor 0:6e97f9a6aca0 129 fprintf(fp, "Hello\r\n");
slicht_instructor 0:6e97f9a6aca0 130 fclose(fp);
slicht_instructor 0:6e97f9a6aca0 131 }
slicht_instructor 0:6e97f9a6aca0 132
slicht_instructor 0:6e97f9a6aca0 133 BLE.printf("### The main program will start in 10 seconds\r\n");
slicht_instructor 0:6e97f9a6aca0 134 wait(5);
slicht_instructor 0:6e97f9a6aca0 135 }
slicht_instructor 0:6e97f9a6aca0 136
slicht_instructor 0:6e97f9a6aca0 137 ///-----------log functions---------------------///
slicht_instructor 0:6e97f9a6aca0 138 void log_data()
slicht_instructor 0:6e97f9a6aca0 139 {
slicht_instructor 0:6e97f9a6aca0 140 //log system time t.read()
slicht_instructor 0:6e97f9a6aca0 141 // log imu data, log science data
slicht_instructor 0:6e97f9a6aca0 142 // log pulse width
slicht_instructor 0:6e97f9a6aca0 143 // log pressure sensor data.
slicht_instructor 0:6e97f9a6aca0 144 //science sensor: temp.temp(), light.light()
slicht_instructor 0:6e97f9a6aca0 145 //IMU sensor
slicht_instructor 0:6e97f9a6aca0 146
slicht_instructor 0:6e97f9a6aca0 147 }
slicht_instructor 0:6e97f9a6aca0 148
slicht_instructor 0:6e97f9a6aca0 149 ///-----------acceleromter related functions---------------------///
slicht_instructor 0:6e97f9a6aca0 150 void accel_update()
slicht_instructor 0:6e97f9a6aca0 151 {
slicht_instructor 0:6e97f9a6aca0 152 accelData[0] = accel.readX();
slicht_instructor 0:6e97f9a6aca0 153 accelData[1] = accel.readY();
slicht_instructor 0:6e97f9a6aca0 154 accelData[2] = accel.readZ();
slicht_instructor 0:6e97f9a6aca0 155 }
slicht_instructor 0:6e97f9a6aca0 156
slicht_instructor 0:6e97f9a6aca0 157 ///-----------Control related functions---------------------///
slicht_instructor 0:6e97f9a6aca0 158 ////Thruster on control, pw->pulse width in milli-second//
slicht_instructor 0:6e97f9a6aca0 159 //// pw range between 1 to 1.5//
slicht_instructor 0:6e97f9a6aca0 160 //// on_time-> thruster on time.
slicht_instructor 0:6e97f9a6aca0 161 void thrust_on(float pw, float on_time) //input is pulse width
slicht_instructor 0:6e97f9a6aca0 162 {
slicht_instructor 0:6e97f9a6aca0 163 float pw_max=2.0;
slicht_instructor 0:6e97f9a6aca0 164 if(pw>pw_max)
slicht_instructor 0:6e97f9a6aca0 165 {
slicht_instructor 0:6e97f9a6aca0 166 pw=pw_max; //hard limitation
slicht_instructor 0:6e97f9a6aca0 167 }
slicht_instructor 0:6e97f9a6aca0 168 Timer tt;
slicht_instructor 0:6e97f9a6aca0 169 tt.reset();
slicht_instructor 0:6e97f9a6aca0 170 tt.start();
slicht_instructor 0:6e97f9a6aca0 171 // lets set the pulse width
slicht_instructor 0:6e97f9a6aca0 172 //thruster.period(20.0/1000.00); // 20 ms period
slicht_instructor 0:6e97f9a6aca0 173 thruster.pulsewidth(pw/1000.00);
slicht_instructor 0:6e97f9a6aca0 174 thruster2.pulsewidth(pw/1000.00);
slicht_instructor 0:6e97f9a6aca0 175 //PWM will be kept until time out
slicht_instructor 0:6e97f9a6aca0 176 while(tt.read()<=on_time)
slicht_instructor 0:6e97f9a6aca0 177 {
slicht_instructor 0:6e97f9a6aca0 178 }
slicht_instructor 0:6e97f9a6aca0 179 //stop the timer
slicht_instructor 0:6e97f9a6aca0 180 tt.stop();
slicht_instructor 0:6e97f9a6aca0 181 //turn off the thruster
slicht_instructor 0:6e97f9a6aca0 182 thruster.pulsewidth(1.0/1000.00);
slicht_instructor 0:6e97f9a6aca0 183 thruster2.pulsewidth(1.0/1000.00);
slicht_instructor 0:6e97f9a6aca0 184
slicht_instructor 0:6e97f9a6aca0 185 }
slicht_instructor 0:6e97f9a6aca0 186