CoAP Device Server Client

Dependencies:   EthernetInterface mbed-rtos mbed nsdl_lib

Fork of COAPmbed by th.iotkit2.ch

Constrained Application Protocol (Coap) ist ein Software-Protokoll welches für Internet der Dinge Geräte zugeschnitten ist.

COAP ist auf den meisten Geräten, die UDP Unterstützen, lauffähig.

Ein COAP fähiges Gerät publiziert seine Sensoren und Aktoren in einem Resource Directory oder stellt selber ein solches zur Verfügung.

Mittels Resource Discovery können die vorhandenen Sensoren und Aktoren mit ihren Attributen abgefragt werden.

Zeile 29: Node Name aendern und folgende Adresse aufrufen: http://nsp.cloudapp.net:8083/, User/PW = demo

main.cpp

Committer:
dan
Date:
2013-10-21
Revision:
6:442775856f5f
Parent:
4:15690450a797
Child:
7:6b068978be9a

File content as of revision 6:442775856f5f:

#include "mbed.h"
#include "EthernetInterface.h"
#include "C12832_lcd.h"
#include "nsdl_support.h"
#include "dbg.h"
// Include various resources
#include "temperature.h"
#include "light.h"
#include "gps.h"
#include "relay.h"

static C12832_LCD lcd;
Serial pc(USBTX, USBRX); // tx, rx

// ****************************************************************************
// Configuration section

// Ethernet configuration
/* Define this to enable DHCP, otherwise manual address configuration is used */
#define DHCP

/* Manual IP configurations, if DHCP not defined */
#define IP      "10.45.0.206"
#define MASK    "255.255.255.0"
#define GW      "10.45.0.1"

// NSP configuration
/* Change this IP address to that of your NanoService Platform installation */
static const char* NSP_ADDRESS = "217.140.101.20"; /* demo NSP, web interface at http://nanoservice-demo.mbed.org*/ 
static const int NSP_PORT = 5683;
char endpoint_name[16] = "mbed-demo-";
uint8_t ep_type[] = {"mbed_device"};
uint8_t lifetime_ptr[] = {"1200"};

// ****************************************************************************
// Ethernet initialization

EthernetInterface eth;

static void ethernet_init()
{
    char mbed_uid[33]; // for creating unique name for the board

    /* Initialize network */
#ifdef DHCP
    NSDL_DEBUG("DHCP in use\r\n");
    eth.init();
#else
    eth.init(IP, MASK, GW);
#endif
    if(eth.connect(30000) == 0)
        pc.printf("Connect OK\n\r");

    mbed_interface_uid(mbed_uid);
    mbed_uid[32] = '\0';
    memcpy(&endpoint_name[10], &mbed_uid[27], 6);

    lcd.locate(0,11);
    lcd.printf("IP:%s", eth.getIPAddress());

    NSDL_DEBUG("IP Address:%s ", eth.getIPAddress());
}

// ****************************************************************************
// NSP initialization

UDPSocket server;
Endpoint nsp;

static void nsp_init()
{
    server.init();
    server.bind(NSP_PORT);

    nsp.set_address(NSP_ADDRESS, NSP_PORT);
    
    NSDL_DEBUG("name: %s", endpoint_name);
    NSDL_DEBUG("NSP=%s - port %d\n", NSP_ADDRESS, NSP_PORT);

    lcd.locate(0,22);
    lcd.printf("EP name:%s\n", endpoint_name);
}

// ****************************************************************************
// Resource creation

static int create_resources()
{
    sn_nsdl_resource_info_s *resource_ptr = NULL;
    sn_nsdl_ep_parameters_s *endpoint_ptr = NULL;
    
    NSDL_DEBUG("Creating resources");

    /* Create resources */
    resource_ptr = (sn_nsdl_resource_info_s*)nsdl_alloc(sizeof(sn_nsdl_resource_info_s));
    if(!resource_ptr)
        return 0;
    memset(resource_ptr, 0, sizeof(sn_nsdl_resource_info_s));

    resource_ptr->resource_parameters_ptr = (sn_nsdl_resource_parameters_s*)nsdl_alloc(sizeof(sn_nsdl_resource_parameters_s));
    if(!resource_ptr->resource_parameters_ptr)
    {
        nsdl_free(resource_ptr);
        return 0;
    }
    memset(resource_ptr->resource_parameters_ptr, 0, sizeof(sn_nsdl_resource_parameters_s));

    // Static resources
    nsdl_create_static_resource(resource_ptr, sizeof("dev/mfg")-1, (uint8_t*) "dev/mfg", 0, 0,  (uint8_t*) "Sensinode", sizeof("Sensinode")-1);
    nsdl_create_static_resource(resource_ptr, sizeof("dev/mdl")-1, (uint8_t*) "dev/mdl", 0, 0,  (uint8_t*) "NSDL-C mbed device", sizeof("NSDL-C mbed device")-1);

    // Dynamic resources
    create_temperature_resource(resource_ptr);
    create_light_resource(resource_ptr);
    create_gps_resource(resource_ptr);
    create_relay_resource(resource_ptr);

        /* Register with NSP */
    endpoint_ptr = nsdl_init_register_endpoint(endpoint_ptr, (uint8_t*)endpoint_name, ep_type, lifetime_ptr);
    if(sn_nsdl_register_endpoint(endpoint_ptr) != 0)
        pc.printf("NSP registering failed\r\n");
    else
        pc.printf("NSP registering OK\r\n");
    nsdl_clean_register_endpoint(&endpoint_ptr);

    nsdl_free(resource_ptr->resource_parameters_ptr);
    nsdl_free(resource_ptr);
    return 1;
}

// ****************************************************************************
// Program entry point

int main()
{
    lcd.cls();
    lcd.locate(0,0);
    lcd.printf("mbed NanoService demo");
    NSDL_DEBUG("mbed NanoService Example App 0.1\n");
    
    // Initialize Ethernet interface first
    ethernet_init();
    
    // Initialize NSP node
    nsp_init();
    
    // Initialize NSDL stack
    nsdl_init();
    
    // Create NSDL resources
    create_resources();
    
    // Run the NSDL event loop (never returns)
    nsdl_event_loop();
}