Emilio Monti
Simple IoT demo over Ethernet using the legacy network libraries
Dependencies: EthernetNetIf mbed DNSResolver
Revision 0:db53174490c3, committed 2012-02-23
- Comitter:
- emilmont
- Date:
- Thu Feb 23 11:12:00 2012 +0000
- Commit message:
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DNSResolver.lib Thu Feb 23 11:12:00 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/hlipka/code/DNSResolver/#097d4993dd1e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/EthernetNetIf.lib Thu Feb 23 11:12:00 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/donatien/code/EthernetNetIf/#bc7df6da7589
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Websocket.lib Thu Feb 23 11:12:00 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/samux/code/Websocket/#f4aac491ea26
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Wifly.lib Thu Feb 23 11:12:00 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/samux/code/Wifly/#56f3c4da1ea8
--- /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();
+ }
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Feb 23 11:12:00 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912