Diff: main.cpp

Revision:

0:db53174490c3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Feb 23 11:12:00 2012 +0000
@@ -0,0 +1,86 @@
+#include "mbed.h"
+#include "Websocket.h"
+#define MEAN_VALUE_MIC 32500
+
+Serial pc(USBTX, USBRX);
+Timer tmr;
+
+Websocket ws("ws://sockets.mbed.org/ws/sensors/wo");
+
+AnalogIn light_pin(p19);
+AnalogIn mic_pin(p18);
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+void notify(int a, int b, int c) {
+    led1 = a;
+    led2 = b;
+    led3 = c;
+}
+
+int main() {
+    notify(1, 0, 0);
+    
+    //unsigned short light;
+    char json_str[100];
+    int press;
+    double temp;
+    int light;
+    unsigned short mic_mean;
+    unsigned short mic = 0;
+
+    char recv[128];
+    while (1) {
+
+        while (!ws.connect()) {
+            pc.printf("cannot connect websocket, retrying in one second\r\n");
+            wait(1.0);
+        }
+        notify(0, 0, 1);
+
+        pc.printf("Connected\r\n");
+
+        tmr.start();
+        while (1) {
+
+            if (tmr.read() > 0.5) {
+
+                //pressure
+                //press = scp1000.readPressure();
+                press = 10;
+
+                //temperature
+                //temp = scp1000.readTemperature();
+                temp = 10.1;
+
+                //light
+                light = light_pin.read_u16()/480;
+
+                //microphone
+                mic_mean = 0;
+                for (double i = 0; i < 200; i++) {
+                    mic = mic_pin.read_u16();
+                    mic = (mic > MEAN_VALUE_MIC) ? mic : MEAN_VALUE_MIC + (MEAN_VALUE_MIC - mic);
+                    mic_mean = (mic_mean*i + mic)/(i+1);
+                }
+                pc.putc('!');
+                
+                sprintf(json_str, "{\"id\":\"eth_env\",\"p\":\"%d\",\"t\":\"%d\",\"l\":\"%d\",\"m\":\"%d\"}", (int)press, (int)temp, (int)(140 - light), mic_mean);
+                ws.send(json_str);
+                
+                led4 = !led4;
+                
+                if (ws.read(recv)) {
+                    pc.printf(".");
+                    pc.printf("recv: %s\r\n", recv);
+                }
+
+                tmr.start();
+            }
+
+            Net::poll();
+        }
+    }
+}
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