Bruce Yang / Mbed 2 deprecated Moko_mbed

Moko_mbed

Dependencies:   DigitDisplay EthernetInterface WebSocketClient mbed-rtos mbed

Digit Display -> DigitDisplay display(P4_29, P4_28); #Uart Temperature -> AnalogIn ain(P0_23); #A0

main.cpp@0:e84b2d4ab961, 2015-05-03 (annotated)

Committer:
bruceyang
Date:
Sun May 03 06:19:47 2015 +0000
Revision:
0:e84b2d4ab961
Temp,LED,Websocket

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bruceyang 0:e84b2d4ab961 1 #include "mbed.h"
bruceyang 0:e84b2d4ab961 2 #include "EthernetInterface.h"
bruceyang 0:e84b2d4ab961 3 #include "Websocket.h"
bruceyang 0:e84b2d4ab961 4 #include "DigitDisplay.h"
bruceyang 0:e84b2d4ab961 5
bruceyang 0:e84b2d4ab961 6 DigitalOut myled(LED2);
bruceyang 0:e84b2d4ab961 7 EthernetInterface eth;
bruceyang 0:e84b2d4ab961 8 DigitDisplay display(P4_29, P4_28);
bruceyang 0:e84b2d4ab961 9 AnalogIn ain(P0_23);
bruceyang 0:e84b2d4ab961 10
bruceyang 0:e84b2d4ab961 11 int a;
bruceyang 0:e84b2d4ab961 12 float temperature;
bruceyang 0:e84b2d4ab961 13 int B=3975; //B value of the thermistor
bruceyang 0:e84b2d4ab961 14 float resistance;
bruceyang 0:e84b2d4ab961 15
bruceyang 0:e84b2d4ab961 16 int main()
bruceyang 0:e84b2d4ab961 17 {
bruceyang 0:e84b2d4ab961 18 char data[256];
bruceyang 0:e84b2d4ab961 19 eth.init();
bruceyang 0:e84b2d4ab961 20 eth.connect();
bruceyang 0:e84b2d4ab961 21 Websocket ws("ws://wot.city/object/554588e158e328ae620000ab/send");
bruceyang 0:e84b2d4ab961 22 ws.connect();
bruceyang 0:e84b2d4ab961 23 while(1) {
bruceyang 0:e84b2d4ab961 24 // multiply ain by 675 if the Grove shield is set to 5V or 1023 if set to 3.3V
bruceyang 0:e84b2d4ab961 25 a=ain*675;
bruceyang 0:e84b2d4ab961 26 resistance=(float)(1023-a)*10000/a; //get the resistance of the sensor;
bruceyang 0:e84b2d4ab961 27 temperature=1/(log(resistance/10000)/B+1/298.15)-273.15; //convert to temperature via datasheet ;
bruceyang 0:e84b2d4ab961 28 myled = 1;
bruceyang 0:e84b2d4ab961 29 wait(0.8);
bruceyang 0:e84b2d4ab961 30 myled = 0;
bruceyang 0:e84b2d4ab961 31 wait(0.8);
bruceyang 0:e84b2d4ab961 32 display.write(temperature);
bruceyang 0:e84b2d4ab961 33 sprintf( data , "{ \"temperature\": %f }",temperature);
bruceyang 0:e84b2d4ab961 34 ws.send(data);
bruceyang 0:e84b2d4ab961 35 }
bruceyang 0:e84b2d4ab961 36 }