megan gimple / Mbed 2 deprecated OCE360_Final_Project

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Dependencies:   mbed MMA8452Q MS5837 SDFileSystem SCI_SENSOR

main.cpp@1:e1a2b47c3098, 2021-11-30 (annotated)

Committer:
mgimple
Date:
Tue Nov 30 14:23:15 2021 +0000
Revision:
1:e1a2b47c3098
Parent:
0:6e97f9a6aca0
Child:
2:a3b55216ffbd
..

Who changed what in which revision?

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