att hackathon / Mbed 2 deprecated DallasHackathon

mbed application board program with most libraries pulled in to create a feature rich starting point for hackathons

Dependencies:   C12832_lcd EthernetInterface HTTPClient LM75B MMA7660 mbed-rtos mbed

Fork of HTTPClient_HelloWorld by Donatien Garnier

AT&T M2M Mobile App Hackathon

Team's Project Pitch Notes

  • Car location and tracking system (GPS + Wifi + Cellular)
  • Temperature / auto vent control for home and industrial use (cellular + servo)
  • GPS triangulation (sonar + cellular)
  • Emergency Tool (Low cost OnStar / Sync Emergency Assistance)
  • Remote Video Conference: Tele-presense (cellular and buttons. Rest was web services)
  • M2M Billboard (LED + Cellular)
  • Order management (restaurants) - Interrupt driven service. Not polled by wait staff (level sensor and cellular)
  • pool manager (simulated ph and chem readings -> cellular)
  • sprest - learning electronic sprinkler system (simulated moisture and weather readings -> cellular)
  • safe traffic signals: stoprite (lots of statistics, used buttons and toy cars to create a scenario)
  • Ecosense

Keywords Used Frequently During Presentation

  • real-time
  • MQTT
  • Arduino
  • 2lemetry
  • HTML5
  • Big data
  • Server side

Participants

  • ARM mbed
  • 2lemetry
  • MSFT
    • One group hacked on windows phone, rest on android / iphone
    • Most were HTML5 (better looking ones)

Pictures from the Event

main.cpp

Committer:
atthackathon
Date:
2013-09-15
Revision:
7:f50a7529de41
Parent:
5:83c272535884

File content as of revision 7:f50a7529de41:

#include "mbed.h"

// Ethernet
#include "EthernetInterface.h"
#include "HTTPClient.h"
EthernetInterface eth;
HTTPClient http;
#define WEBPAGE_BUF_SIZE 4096
char str[WEBPAGE_BUF_SIZE];

//LCD
#include "C12832_lcd.h"
C12832_LCD lcd;

// joystick pins and LED
BusIn joystick(p15,p12,p13,p16);
DigitalIn enter(p14);
BusOut led(LED1,LED2,LED3,LED4);
Ticker joystick_to_led;
void joystickHandler(void)
{
    led = (enter) ? 0xf : joystick;
}

// Accelerometer
#include "MMA7660.h"
MMA7660 accelerometer(p28, p27);

// RGB LED
PwmOut r(p23);
PwmOut g(p24);
PwmOut b(p25);

// Temp sensor
#include "LM75B.h"
LM75B temp(p28,p27);

//char const *URL = "http://mbed.org/media/uploads/donatien/hello.txt";
//char const *URL = "http://mbed.org/";
char const *URL = "http://www.att.com/";
char const MAC[] = {0x00,0x02,0xF7,0xF0,0x00,0x00};
void mbed_mac_address(char *mac)
{
    memcpy(mac, MAC, sizeof(MAC));
}

int main()
{
    r = g = b = 1.0f;
    joystick_to_led.attach(&joystickHandler, 0.001f);
    lcd.printf ("Bootstrap Complete!\n");

    // Prepare to use DHCP
    if (0 != eth.init()) {
        error("Init Failed\n");
    }
    // Try to get an IPAddress
    if (0 != eth.connect(30000)) {
        error("Connect Failed: Check ethernet connection or try to increase the timeout\n");
    }
    // Now we are part of the network
    printf("IP Address: %s\n", eth.getIPAddress());
    lcd.cls();
    lcd.locate(0,0);
    lcd.printf("TCP/IPv4: %s\n", eth.getIPAddress());
    //GET data
    printf("Trying to fetch page %s\n", URL);
    if(!http.get(URL, str, WEBPAGE_BUF_SIZE)) {
        printf("Page fetched successfully - read %d characters\n", strlen(str));
        printf("Result: %s\n", str);
    } else {
        printf("Error - HTTP return code = %d\n", http.getHTTPResponseCode());
    }
    eth.disconnect();

    while(1) {
        // print the temperature to the LCD
        float tmp_temp = (temp.read() * 1.8f ) + 32.0f;
        lcd.locate(8,10);
        lcd.printf("Temp: %.1fF", tmp_temp);

        // print and display the gyro data
        float x = fabs(accelerometer.x());
        float y = fabs(accelerometer.y());
        float z = fabs(accelerometer.z());
        r = 1.0f - x;
        g = 1.0f - y;
        b = z;
        lcd.locate(8,20);
        lcd.printf("X: %2.1f Y:%2.1f Z:%2.1f\n", x, y, z);

    }
}