Diff: main.cpp

Revision:

0:f10415100c39

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Feb 11 04:31:13 2019 +0000
@@ -0,0 +1,337 @@
+#include "mbed.h"
+#include "uLCD_4DGL.h"
+#include "AnalogIn.h"
+
+#include "Speaker.h"
+#include "PinDetect.h"
+
+#include "SDFileSystem.h"
+#include <string>
+
+#include "MMA8452.h"
+
+uLCD_4DGL uLCD(p9, p10, p11);          // used in all parts
+
+Speaker mySpeaker(p21);                // used in parts 4 and 6
+
+SDFileSystem sd(p5, p6, p7, p8, "sd"); // used in part 5
+
+Serial pc(USBTX,USBRX);                // used in part 6
+
+DigitalOut myled1(LED1);
+DigitalOut myled2(LED2);
+DigitalOut myled3(LED3);
+DigitalOut myled4(LED4);
+
+PinDetect pb1(p16);
+PinDetect pb2(p17);
+PinDetect pb3(p18);
+PinDetect selector(p14);
+
+int currentPart = 1; // global placeholder
+
+void part1() // What's up mbed!
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 1:\n  What's up mbed!\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    uLCD.printf("\nWhat's up mbed!\n");
+}
+
+void part2() // Bouncing Ball
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 2:\n  Bouncing Balls\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    
+    uLCD.display_control(PORTRAIT);
+    uLCD.cls();
+    uLCD.printf("Bouncing Ball");
+    uLCD.baudrate(BAUD_3000000); //jack up baud rate to max for fast display
+    wait(1.0);
+    
+    //Set up initial conditions
+    float fx=50.0,fy=21.0,vx=0.4,vy=0.3;
+    int x=50,y=21,radius=4;
+    uLCD.background_color(BLACK);
+    uLCD.cls();
+    
+    //draw borders
+    uLCD.line(0, 0, 127, 0, WHITE);
+    uLCD.line(127, 0, 127, 127, WHITE);
+    uLCD.line(127, 127, 0, 127, WHITE);
+    uLCD.line(0, 127, 0, 0, WHITE);
+    
+    for (int i=0; i<1500; i++)
+    {
+        //draw ball
+        uLCD.circle(x, y, radius, RED);
+        //bounce off edge walls and slow down a bit
+        if ((x<=radius+1) || (x>=126-radius)) vx = -.95*vx;
+        if ((y<=radius+1) || (y>=126-radius)) vy = -.95*vy;
+        //erase old ball location
+        uLCD.filled_circle(x, y, radius, BLACK);
+        //calculate new ball position
+        fx=fx+vx;
+        fy=fy+vy;
+        x=(int)fx;
+        y=(int)fy;
+    } //end for loop
+}
+
+void part3() // Digital Thermometer
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 3:\n  Digital\n  Thermometer\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    
+    class TMP36
+    {
+        public:
+            TMP36(PinName pin);
+            TMP36();
+            float read();
+        private:
+            AnalogIn _pin;
+    };
+
+    TMP36::TMP36(PinName pin) : _pin(pin) {} //This is an initializer list … pass pin to AnalogIn constructor
+    float TMP36::read()
+    {
+        //convert sensor reading to C
+        return ((_pin.read() * 3.3) - 0.500) * 100.0;
+        // _pin.read() returns normalized voltage value as float
+    }
+
+    //instantiate new class to set p15 to analog input
+    //to read and convert TMP36 sensor's voltage output
+    TMP36 myTMP36(p15);
+
+    float tempC, tempF;
+    while(1)
+    {
+        tempC = myTMP36.read();
+        // convert to F
+        tempF = (9.0 * tempC) / 5.0 + 32.0;
+        // print current temp
+        uLCD.cls();
+        uLCD.printf("\n%5.2f C\n%5.2f F\n\n", tempC, tempF);
+        wait(0.5);
+    }
+}
+
+void part4() // Jazzy Tunes
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 4:\n  Jazzy Tunes\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    
+    void pb1_hit_callback (void)
+    {
+        myled1 = !myled1;
+        mySpeaker.PlayNote(200.0,0.25,0.1);
+    }
+    //------------------------------------------------------------------------------
+    // Callback routine is interrupt activated by a debounced pb2 hit
+    // That is … this code runs with interrupt is generated by second button press
+    void pb2_hit_callback (void)
+    {
+        myled2 = !myled2;
+        mySpeaker.PlayNote(400.0,0.25,0.1);
+    }
+    //------------------------------------------------------------------------------
+    // Callback routine is interrupt activated by a debounced pb3 hit
+    // That is … this code runs with interrupt is generated by third button press
+    void pb3_hit_callback (void)
+    {
+        myled3 = !myled3;
+        mySpeaker.PlayNote(800.0,0.25,0.1);
+    }
+    //------------------------------------------------------------------------------
+
+    //setup push buttons
+    pb1.mode(PullUp);
+    pb2.mode(PullUp);
+    pb3.mode(PullUp);
+    // Delay for initial pullup to take effect
+    wait(.01);
+    // Setup Interrupt callback functions for a pb hit
+    pb1.attach_deasserted(&pb1_hit_callback);
+    pb2.attach_deasserted(&pb2_hit_callback);
+    pb3.attach_deasserted(&pb3_hit_callback);
+    // Start sampling pb inputs using interrupts
+    pb1.setSampleFrequency();
+    pb2.setSampleFrequency();
+    pb3.setSampleFrequency();
+    // pushbuttons now setup and running
+    while(1)
+    {
+        myled4 = !myled4;
+        wait(0.5);
+    }
+}
+
+void part5_1() // Hello Micro SD Card - Writing
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 5.1:\n  Hello Micro SD\n  Card - Writing\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    
+    uLCD.printf("Hello Micro SD\nCard!\n");
+    mkdir("/sd/mydir", 0777);
+    FILE *fp = fopen("/sd/mydir/sdtest.txt", "w");
+    if(fp == NULL) 
+    {
+        uLCD.printf("Error on open \n");
+    }
+    fprintf(fp, "I love ECE2036");
+    fclose(fp);
+}
+
+void part5_2() // Hello Micro SD Card - Reading
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 5.2:\n  Hello Micro SD\n  Card - Reading\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    
+    string inputString;
+    uLCD.printf("Content of sdtest.txt is: \n");
+    FILE *fp = fopen("/sd/mydir/sdtest.txt", "r");
+    if(fp == NULL) 
+    {
+        uLCD.printf("Error on open \n");
+    }
+    else
+    {
+        while (fscanf(fp,"%s", inputString)!= EOF) //reads in a string delineated by white space
+        {
+            uLCD.printf("%s ", inputString.c_str());
+        }
+    }
+    fclose(fp);
+}
+
+void part6() // Triple Axis Accelerometer
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 6:\n  Triple Axis\n  Accelerometer\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    
+    // you can play around with the parameters to see the response
+    int radius = 10;
+    int offsetx = 63;
+    int offsety = 63;
+    double factor = 50;
+    double music_factor = 200;
+    bool MusicOn = false;
+   
+    //set the push buttons that control sounds
+    pb1.mode(PullUp);
+    pb2.mode(PullUp);
+    //I will not use interupts like in jazzy tunes
+ 
+   
+    double x = 0, y = 0, z = 0;
+ 
+    MMA8452 acc(p28, p27, 40000);  //instantiate an acc object! 
+   
+    //set parameters -- use these and don't change
+    acc.setBitDepth(MMA8452::BIT_DEPTH_12);
+    acc.setDynamicRange(MMA8452::DYNAMIC_RANGE_4G);
+    acc.setDataRate(MMA8452::RATE_100);
+   
+   
+    while(1) 
+    {
+        uLCD.circle(-1*y*factor+offsety, -1*x*factor+offsetx, radius, BLACK);
+       
+        if(!acc.isXYZReady()) 
+        {
+            wait(0.01);
+        }
+        else
+        { 
+            acc.readXYZGravity(&x,&y,&z); //notice this is passed by reference use pointers
+      
+            uLCD.circle(-1*y*factor+offsety, -1*x*factor+offsetx, radius, WHITE);
+      
+            if (MusicOn) mySpeaker.PlayNote(440.0+x*music_factor,0.25+0.2*y,0.05);
+      
+            if (pb1 == true) MusicOn = true;
+           
+            if (pb2 == false) MusicOn = false;
+                 
+            // You can uncomment this line to see the values coming off the MMA8452           
+            uLCD.cls();
+            uLCD.printf("\n(%.2f,%.2f,%.2f)  \n", x,y,z);
+      
+        } //end else
+      
+    } //end infinite while loop
+}
+
+void main_callback()
+{
+    switch (currentPart)
+    {
+        case 1: part1();
+                currentPart++;
+                break;
+        case 2: part2();
+                currentPart++;
+                break;
+        case 3: part3();
+                currentPart++;
+                break;
+        case 4: part4();
+                currentPart++;
+                break;
+        case 5: part5_1();
+                part5_2();
+                currentPart++;
+                break;
+        case 6: part6();
+                currentPart = 1;
+                break;
+        
+    }
+}
+
+int main() {
+    selector.mode(PullUp);
+    wait(.01);
+    selector.attach_deasserted(&main_callback);
+    selector.setSampleFrequency();
+    while(1) 
+    {
+        continue;
+    }
+}