Diff: main.cpp

Revision:

0:a670e19e5f6a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Oct 17 20:02:56 2013 +0000
@@ -0,0 +1,110 @@
+#include "mbed.h"
+#include "EthernetInterface.h"
+#include "Websocket.h"
+#include "HMC6352.h"
+
+HMC6352 compass(p9, p10);
+Serial pc(USBTX, USBRX);
+SPI spi(p11, p12, p13);
+
+DigitalOut latch(p15);
+DigitalOut enable(p16);
+
+//Function controlling the brightness of shiftbright leds
+void RGB_LED(int redx, int greenx, int bluex)
+{
+    unsigned int low_color=0;
+    unsigned int high_color=0;
+    int red, green, blue;
+    red = ((redx - 48)*25)&0x3FF ;          // subtract 48 from input to read ascii code correctly
+    blue = ((bluex - 48)*25)&0x3FF ;        // scale by a factor of 25 so the LED's are brighter
+    green = ((greenx - 48)*25)&0x3FF ;      // and with 0x3FF so the colors are no more than 10 bits
+    high_color=(blue<<4)|((red&0x3C0)>>6);
+    low_color=(((red&0x3F)<<10)|(green));
+    spi.write(high_color);
+    spi.write(low_color);
+    latch=1;
+    enable=1;
+    latch=0;
+    enable=0;
+    wait(.25);
+}
+
+
+int main()
+{
+    // set the frequency and format of the spi connection to shiftbright
+    spi.format(16,0);
+    spi.frequency(500000);
+
+    char *r, *b, *g;
+    int enable=0;
+    char r1=48,b1=48,g1=48; //Declare the colors zero or off in ascii code
+    char recv[3];
+    
+    // run shiftbright function with zeros to start with shiftbright off
+    RGB_LED((int)r1, (int)g1, (int)b1);
+
+    EthernetInterface eth;
+    eth.init(); //Use DHCP
+    eth.connect(); 
+    //printf("IP Address is %s\n\r", eth.getIPAddress());
+
+    compass.setOpMode(HMC6352_CONTINUOUS, 1, 20);
+
+    Websocket ws("ws://sockets.mbed.org:443/ws/demo/wo");   // set socket connection server address
+    ws.connect();                                               // connect socket server
+    int res = ws.send("MBED Connected");                        // send msg confirming connection
+
+
+
+    while (1) {
+
+        // when the socket recieves information store it in recv
+        if (ws.read(recv)) { 
+
+            // if first character of the msg recieved is C send compass reading to socket
+            if(recv[0] == 'C') {
+                float compass_reading;
+                char reading[20];
+                compass_reading = compass.sample() / 10.0;
+                snprintf(reading, sizeof(reading), "%f", compass_reading);
+                ws.send(reading);
+                ws.send("Heading is:");
+            }
+            
+            // when r is input the character after a space is put as the brightness of the red LED
+            if(recv[0] == 'r') {
+                r= strtok(recv, " ");
+                r= strtok( NULL," ");
+                r1 = *r;
+            }
+
+            // when b is input the character after a space is put as the brightness of the blue LED
+            if(recv[0] == 'b') {
+                b= strtok(recv, " ");
+                b= strtok( NULL," ");
+                b1 = *b;
+            }
+            
+            // when g is input the character after a space is put as the brightness of the green LED
+            if(recv[0] == 'g') {
+                g= strtok(recv, " ");
+                g= strtok( NULL," ");
+                g1 = *g;
+            }
+            
+            // when 0 is input the shiftbright turns all LED's off
+            if(recv[0] == '0') {
+                g1=48;
+                r1=48;
+                b1=48;
+            }
+            
+            // call on the LED function everytime an input comes from the socket
+            RGB_LED((int)r1, (int)g1, (int)b1);
+
+        }
+    }
+
+}
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