william jenkins
Using a websocket to control a ShiftBrite LED and a digital compass
Dependencies: EthernetInterface HMC6352 WebSocketClient mbed-rtos mbed
Revision 0:a670e19e5f6a, committed 2013-10-17
- Comitter:
- wjenkins7
- Date:
- Thu Oct 17 20:02:56 2013 +0000
- Commit message:
- web socket example code
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/EthernetInterface.lib Thu Oct 17 20:02:56 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/EthernetInterface/#cba86db5ab96
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HMC6352.lib Thu Oct 17 20:02:56 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/aberk/code/HMC6352/#83c0cb554099
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/WebSocketClient.lib Thu Oct 17 20:02:56 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/samux/code/WebSocketClient/#4567996414a5
--- /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);
+
+ }
+ }
+
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos.lib Thu Oct 17 20:02:56 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed-rtos/#ee87e782d34f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Oct 17 20:02:56 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/a9913a65894f \ No newline at end of file