Revision 0:93cc592ffdb5, committed 2014-10-20

Comitter:

michaeljkoster

Date:

Mon Oct 20 02:04:20 2014 +0000

Child:

1:76ab3521eb51

Commit message:

Example Resources for LED Bar, Gas Sensor, and Light (Illuminance) Sensor

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/EthernetInterface.lib	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/users/michaeljkoster/code/EthernetInterface/#6ca542f6c58d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/IAP.lib	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/users/sam_grove/code/IAP/#f794a51897b8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LED_Bar.lib	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/teams/Seeed/code/LED_Bar/#edcb13b58b4f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dbg.h	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,17 @@
+#ifndef DEBUG_H
+#define DEBUG_H
+
+#include "nsdl_support.h"
+#include "mbed.h"
+
+//Debug is disabled by default
+#define DEBUG 1
+
+#if (DEBUG)
+extern Serial pc;
+#define NSDL_DEBUG(x, ...) pc.printf("[NSDL_DEBUG: %s:%d]" x "\r\n", __FILE__, __LINE__, ##__VA_ARGS__);
+#else
+#define NSDL_DEBUG(x, ...)
+#endif
+
+#endif
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,179 @@
+#include "mbed.h"
+#include "EthernetInterface.h"
+#include "nsdl_support.h"
+#include "dbg.h"
+#include "IAP.h"
+
+// Include resources
+#include "LEDbar.h"
+#include "IPSO_illuminance.h"
+#include "gas_sensor.h"
+
+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      "10.0.0.199"
+#define MASK    "255.255.255.0"
+#define GW      "10.0.0.1"
+
+extern "C" void mbed_mac_address(char *mac)
+{
+    static char buf[64] = {0};
+    IAP iap;
+    int32_t *block = iap.read_serial();
+    uint32_t serial_number[5] = {0};
+    
+    memset(buf, 0, sizeof(buf));
+    serial_number[0] = *(block);
+    serial_number[1] = *(block+1);
+    // we only want bottom 16 bits of word1 (MAC bits 32-47)
+    // and bit 9 forced to 1, bit 8 forced to 0
+    // Locally administered MAC, reduced conflicts
+    // http://en.wikipedia.org/wiki/MAC_address
+    //serial_number[0] |= 0x00000200;
+    //serial_number[0] &= 0x0000FEFF;
+    memcpy(mac, (uint8_t*) &serial_number[0], 6);
+    mac[0] |= 0x02;
+    mac[0] &= 0xFE;
+    mac[5] |= 0x02;
+    mac[5] &= 0xFE;
+     
+    // snprintf(buf, 16, "%4X%08X", serial_number[0], serial_number[1]);
+}  
+
+ 
+// NSP configuration
+/* Change this IP address to that of your NanoService Platform installation */
+static const char* NSP_ADDRESS = "23.102.162.118"; // coen296.cloudapp.net
+//static const char* NSP_ADDRESS = "192.168.1.200"; // local mDS server
+static const int NSP_PORT = 5683;
+char endpoint_name[24] = "mbedDEMO-";
+uint8_t ep_type[] = {"DEMO"};
+uint8_t lifetime_ptr[] = {"60"};
+
+// ****************************************************************************
+// Ethernet initialization
+
+EthernetInterface eth;
+static void ethernet_init()
+{
+    
+    /* Initialize network */
+#ifdef DHCP
+    NSDL_DEBUG("DHCP in use\r\n");
+    eth.init();
+    NSDL_DEBUG("eth.init\r\n");
+#else
+    eth.init(IP, MASK, GW);
+    NSDL_DEBUG("eth.init\r\n");
+#endif
+    if(eth.connect(30000) == 0)
+        pc.printf("Connect OK\n\r");
+
+    NSDL_DEBUG("IP Address:%s ", eth.getIPAddress());
+}
+
+// ****************************************************************************
+// NSP initialization
+
+UDPSocket server;
+Endpoint nsp;
+
+char macbytes[6] = {0};
+char MAC[20];
+
+static void nsp_init()
+{
+    server.init();
+    server.bind(NSP_PORT);
+
+    nsp.set_address(NSP_ADDRESS, NSP_PORT);
+    
+    mbed_mac_address(macbytes);
+    
+    sprintf(MAC, "%02X%02X%02X%02X%02X%02X", macbytes[0], macbytes[1], macbytes[2], macbytes[3], macbytes[4], macbytes[5]);
+    pc.printf("MAC: %s\r\n", MAC);
+    
+    strncat(endpoint_name, MAC, 12);
+    
+    NSDL_DEBUG("name: %s", endpoint_name);
+    NSDL_DEBUG("NSP=%s - port %d\n", NSP_ADDRESS, NSP_PORT);
+
+}
+
+// ****************************************************************************
+// 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("3/0/0")-1, (uint8_t*) "3/0/0", 0, 0,  (uint8_t*) "mbedDEMO", sizeof("mbedDEMO")-1);
+    nsdl_create_static_resource(resource_ptr, sizeof("3/0/1")-1, (uint8_t*) "3/0/1", 0, 0,  (uint8_t*) "DEMO", sizeof("DEMO")-1);
+
+    // Dynamic resources
+    create_LEDbar_resource(resource_ptr);
+    create_IPSO_illuminance_resource(resource_ptr);
+    create_gas_sensor_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()
+{
+
+    NSDL_DEBUG("Hello mDS Demo Endpoint Application\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();
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos.lib	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed-rtos/#631c0f1008c3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/552587b429a1
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nsdl_lib.lib	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/teams/Sensinode/code/nsdl_lib/#388450b1e776

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nsdl_support.cpp	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,202 @@
+// NSDL library support functions
+
+#include "mbed.h"
+#include "nsdl_support.h"
+#include "mbed.h"
+#include "rtos.h"
+#include "EthernetInterface.h"
+#include "UDPSocket.h"
+#include "Endpoint.h"
+
+/*    __heapvalid((__heapprt)fprintf,stdout, 1);\*/
+#define MEM_VALID(x) \
+    int s##x=0;\
+    int *h##x = new int [1];\
+    std::printf("[stack]0x%08x\t[heap]0x%08x\t[memory avail]%d bytes \tLine: %d %s\r\n", &s##x, h##x, &s##x-h##x, __LINE__, __FILE__);\
+    if (h##x > &s##x)\
+    printf("collision\n");\
+    else\
+    delete [] h##x;\
+    __nop()
+
+extern Serial pc;
+extern Endpoint nsp;
+extern UDPSocket server;
+extern char endpoint_name[24];
+extern uint8_t ep_type[];
+extern uint8_t lifetime_ptr[];
+char null_ep_name[] = "";
+uint8_t null_ep_type[] = "";
+uint8_t null_lifetime_ptr[] = "60";
+bool nsdl_reg_update_needed = false;
+
+/* The number of seconds between NSP registration messages */
+#define RD_UPDATE_PERIOD  30
+
+void *nsdl_alloc(uint16_t size)
+{
+    void *buf = malloc(size);
+//    printf("alloc\r\n");
+//    MEM_VALID(0);
+    return buf;
+}
+
+void nsdl_free(void* ptr_to_free)
+{
+    free(ptr_to_free);
+//    printf("de-alloc\r\n");
+//    MEM_VALID(0);
+}
+
+/*
+ * Create a static resoure
+ * Only get is allowed
+ */
+void nsdl_create_static_resource(sn_nsdl_resource_info_s *resource_structure, uint16_t pt_len, uint8_t *pt, uint16_t rpp_len, uint8_t *rpp_ptr, uint8_t *rsc, uint16_t rsc_len)
+{
+    resource_structure->access = SN_GRS_GET_ALLOWED;
+    resource_structure->mode = SN_GRS_STATIC;
+    resource_structure->pathlen = pt_len;
+    resource_structure->path = pt;
+    resource_structure->resource_parameters_ptr->resource_type_len = rpp_len;
+    resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr;
+    resource_structure->resource = rsc;
+    resource_structure->resourcelen = rsc_len;
+    sn_nsdl_create_resource(resource_structure);
+}
+
+void nsdl_create_dynamic_resource(sn_nsdl_resource_info_s *resource_structure, uint16_t pt_len, uint8_t *pt, uint16_t rpp_len, uint8_t *rpp_ptr, uint8_t is_observable, sn_grs_dyn_res_callback_t callback_ptr, int access_right)
+{
+    resource_structure->access = (sn_grs_resource_acl_e)access_right;
+    resource_structure->resource = 0;
+    resource_structure->resourcelen = 0;
+    resource_structure->sn_grs_dyn_res_callback = callback_ptr;
+    resource_structure->mode = SN_GRS_DYNAMIC;
+    resource_structure->pathlen = pt_len;
+    resource_structure->path = pt;
+    resource_structure->resource_parameters_ptr->resource_type_len = rpp_len;
+    resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr;
+    resource_structure->resource_parameters_ptr->observable = is_observable;
+    sn_nsdl_create_resource(resource_structure);
+}
+
+sn_nsdl_ep_parameters_s* nsdl_init_register_endpoint(sn_nsdl_ep_parameters_s *endpoint_structure, uint8_t* name, uint8_t* typename_ptr, uint8_t *lifetime_ptr)
+{
+    if (NULL == endpoint_structure)
+    {   
+        endpoint_structure = (sn_nsdl_ep_parameters_s*)nsdl_alloc(sizeof(sn_nsdl_ep_parameters_s));
+    }
+    if (endpoint_structure)
+    {
+        memset(endpoint_structure, 0, sizeof(sn_nsdl_ep_parameters_s));
+        endpoint_structure->endpoint_name_ptr = name;
+        endpoint_structure->endpoint_name_len = strlen((char*)name);
+        endpoint_structure->type_ptr = typename_ptr;
+        endpoint_structure->type_len =  strlen((char*)typename_ptr);
+        endpoint_structure->lifetime_ptr = lifetime_ptr;
+        endpoint_structure->lifetime_len =  strlen((char*)lifetime_ptr); 
+    }
+    return endpoint_structure;
+}
+
+void nsdl_clean_register_endpoint(sn_nsdl_ep_parameters_s **endpoint_structure)
+{
+    if (*endpoint_structure)
+    {
+        nsdl_free(*endpoint_structure);
+        *endpoint_structure = NULL;
+    }
+}
+
+static uint8_t tx_cb(sn_nsdl_capab_e protocol, uint8_t *data_ptr, uint16_t data_len, sn_nsdl_addr_s *address_ptr)
+{
+    pc.printf("TX callback!\n\rSending %d bytes\r\n", data_len);
+
+    if(server.sendTo(nsp, (char*)data_ptr, data_len) != data_len)
+        pc.printf("sending failed\n\r");
+
+    return 1;
+}
+
+static uint8_t rx_cb(sn_coap_hdr_s *coap_packet_ptr, sn_nsdl_addr_s *address_ptr)
+{
+    pc.printf("RX callback!\r\n");
+    pc.printf("msg_code: %d \r\n", coap_packet_ptr->msg_code);
+    pc.printf("Payload length: %d bytes\r\n", coap_packet_ptr->payload_len);
+    int i;
+    pc.printf("Payload:'");
+    for (i=0; i < coap_packet_ptr->payload_len; i++)
+        pc.printf("%c", *(coap_packet_ptr->payload_ptr + i));
+    pc.printf("' \r\n");
+    if (coap_packet_ptr->options_list_ptr && coap_packet_ptr->options_list_ptr->location_path_ptr)
+    {
+        pc.printf("Location: /");
+        int i;
+        for (i=0; i < coap_packet_ptr->options_list_ptr->location_path_len; i++) pc.printf("%c", (char)(coap_packet_ptr->options_list_ptr->location_path_ptr[i]));
+        pc.printf(" \r\n");
+    }
+    //sn_coap_packet_debug(coap_packet_ptr);
+    return 0;
+}
+
+static void registration_update_thread(void const *args)
+{
+    sn_nsdl_ep_parameters_s *endpoint_ptr = NULL;
+
+    while(true)
+    {
+        wait(RD_UPDATE_PERIOD);
+        endpoint_ptr = nsdl_init_register_endpoint(endpoint_ptr, (uint8_t*)null_ep_name, null_ep_type, null_lifetime_ptr);
+        if(sn_nsdl_update_registration(endpoint_ptr) != 0)            
+            pc.printf("NSP re-registering failed\r\n");
+        else
+            pc.printf("NSP re-registering OK\r\n");
+        nsdl_clean_register_endpoint(&endpoint_ptr);
+    }
+}
+
+void nsdl_init()
+{
+    uint8_t nsp_addr[4];
+    sn_nsdl_mem_s memory_cbs;
+
+    /* Initialize libNsdl */
+    memory_cbs.sn_nsdl_alloc = &nsdl_alloc;
+    memory_cbs.sn_nsdl_free = &nsdl_free;
+    if(sn_nsdl_init(&tx_cb, &rx_cb, &memory_cbs) == -1)
+        pc.printf("libNsdl init failed\r\n");
+    else
+        pc.printf("libNsdl init done\r\n");
+
+    /* Set nsp address for library */
+    set_NSP_address(nsp_addr, 5683, SN_NSDL_ADDRESS_TYPE_IPV4);
+}   
+
+void nsdl_event_loop()
+{
+    Thread registration_thread(registration_update_thread);
+
+    sn_nsdl_addr_s received_packet_address;
+    uint8_t received_address[4];
+    char buffer[1024];
+    Endpoint from;
+
+    memset(&received_packet_address, 0, sizeof(sn_nsdl_addr_s));
+    received_packet_address.addr_ptr = received_address;
+
+    while(1)
+    {
+        int n = server.receiveFrom(from, buffer, sizeof(buffer));
+        if (n < 0)
+        {
+            pc.printf("Socket error\n\r");
+        }
+        else if (n > 0)
+        {   
+            pc.printf("Received %d bytes\r\n", n);
+            sn_nsdl_process_coap((uint8_t*)buffer, n, &received_packet_address);
+        }
+    }
+}
+
+            
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nsdl_support.h	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,24 @@
+// Support functions for the NSDL library
+
+#ifndef NSDL_SUPPORT_H
+#define NSDL_SUPPORT_H
+
+#include "mbed.h"
+#include <stdint.h>
+#include "sn_nsdl.h"
+#include "sn_coap_header.h"
+#include "sn_coap_protocol.h"
+#include "sn_nsdl_lib.h"
+
+typedef uint8_t (*sn_grs_dyn_res_callback_t)(sn_coap_hdr_s *, sn_nsdl_addr_s *, sn_proto_info_s *);
+
+extern "C" void *nsdl_alloc(uint16_t size);
+extern "C" void nsdl_free(void* ptr_to_free);
+void nsdl_create_static_resource(sn_nsdl_resource_info_s *resource_structure, uint16_t pt_len, uint8_t *pt, uint16_t rpp_len, uint8_t *rpp_ptr, uint8_t *rsc, uint16_t rsc_len);
+void nsdl_create_dynamic_resource(sn_nsdl_resource_info_s *resource_structure, uint16_t pt_len, uint8_t *pt, uint16_t rpp_len, uint8_t *rpp_ptr, uint8_t is_observable, sn_grs_dyn_res_callback_t callback_ptr, int access_right);
+sn_nsdl_ep_parameters_s* nsdl_init_register_endpoint(sn_nsdl_ep_parameters_s *endpoint_structure, uint8_t* name, uint8_t* ypename_ptr, uint8_t *lifetime_ptr);
+void nsdl_clean_register_endpoint(sn_nsdl_ep_parameters_s **endpoint_structure);
+void nsdl_init();
+void nsdl_event_loop();
+
+#endif // NSDL_SUPPORT_H

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/resources/IPSO_illuminance.cpp	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,62 @@
+// IPSO Illuminance sensor resource implementation
+
+#include "mbed.h"
+#include "nsdl_support.h"
+
+#define ILLUM_RES_ID    "3301/0/5700"
+#define ILLUM_RES_RT    "urn:X-ipso:illuminance"
+
+extern Serial pc;
+uint8_t illum_max_age = 0; 
+uint8_t illum_content_type = 50;
+
+AnalogIn illumSensor(A1);
+int illum_percent;
+char illumPctString[5];
+
+/* Only GET method allowed */
+static uint8_t illuminance_resource_cb(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto)
+{
+    sn_coap_hdr_s *coap_res_ptr = 0;
+    illum_percent = illumSensor.read() * 100;
+    sprintf(illumPctString,"%d", illum_percent);
+    pc.printf("illum callback\r\n");
+    pc.printf("illum percent %s\r\n", illumPctString);
+
+    if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_GET)
+    {
+        coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CONTENT);
+
+        coap_res_ptr->payload_len = strlen(illumPctString);
+        coap_res_ptr->payload_ptr = (uint8_t*)illumPctString;
+        
+        coap_res_ptr->content_type_ptr = &illum_content_type;
+        coap_res_ptr->content_type_len = sizeof(illum_content_type);
+        
+        coap_res_ptr->options_list_ptr = (sn_coap_options_list_s*)nsdl_alloc(sizeof(sn_coap_options_list_s));
+        if(!coap_res_ptr->options_list_ptr)
+            {
+            pc.printf("cant alloc option list for max-age\r\n");
+            coap_res_ptr->options_list_ptr = NULL; //FIXME report error and recover
+            }
+        memset(coap_res_ptr->options_list_ptr, 0, sizeof(sn_coap_options_list_s));
+        coap_res_ptr->options_list_ptr->max_age_ptr = &illum_max_age;
+        coap_res_ptr->options_list_ptr->max_age_len = sizeof(illum_max_age);
+
+        sn_nsdl_send_coap_message(address, coap_res_ptr);
+        nsdl_free(coap_res_ptr->options_list_ptr);
+        coap_res_ptr->options_list_ptr = NULL;
+        coap_res_ptr->content_type_ptr = NULL;// parser_release below tries to free this memory
+
+    }
+
+    sn_coap_parser_release_allocated_coap_msg_mem(coap_res_ptr);
+
+    return 0;
+}
+
+int create_IPSO_illuminance_resource(sn_nsdl_resource_info_s *resource_ptr)
+{
+    nsdl_create_dynamic_resource(resource_ptr, sizeof(ILLUM_RES_ID)-1, (uint8_t*)ILLUM_RES_ID, sizeof(ILLUM_RES_RT)-1, (uint8_t*)ILLUM_RES_RT, 0, &illuminance_resource_cb, (SN_GRS_GET_ALLOWED));
+    return 0;
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/resources/IPSO_illuminance.h	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,10 @@
+// IPSO Illuminance Sensor implementation
+
+#ifndef IPSO_ILLUM_H
+#define IPSO_ILLUM_H
+
+#include "nsdl_support.h"
+
+int create_IPSO_illuminance_resource(sn_nsdl_resource_info_s *resource_ptr);
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/resources/LEDbar.cpp	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,69 @@
+// Light resource implementation
+
+#include "mbed.h"
+#include "nsdl_support.h"
+#include "LEDbar.h"
+#include "LED_Bar.h"
+
+#define LEDBAR_RES_ID    "11101/0/5901"
+#define LEDBAR_RES_RT    "urn:X-mbed:LEDbar"
+
+extern Serial pc;
+char leds[] = {"0000000000"}; //GGGGGGGGYR
+
+LED_Bar bar(D6, D5);
+
+void set_leds(char *leds)
+{
+int i;
+    for (i=0; i<=9; i++) {
+        if(leds[i] == '1')
+            bar.setSingleLed((9-i),1);
+        else if(leds[i] == '0')
+            bar.setSingleLed((9-i),0);    
+        }    
+}
+
+
+/* Only GET and PUT method allowed */
+static uint8_t LEDbar_resource_cb(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto)
+{
+    sn_coap_hdr_s *coap_res_ptr = 0;
+
+    //pc.printf("LED Strip callback\r\n");
+
+    if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_GET)
+    {
+        coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CONTENT);
+
+        coap_res_ptr->payload_len = strlen(leds);
+        coap_res_ptr->payload_ptr = (uint8_t*)leds;
+        sn_nsdl_send_coap_message(address, coap_res_ptr);
+    }
+    else if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_PUT)
+    {
+        //pc.printf("PUT: %d bytes\r\n", received_coap_ptr->payload_len);
+        if(received_coap_ptr->payload_len == 10)
+        {
+            memcpy(leds, (char *)received_coap_ptr->payload_ptr, received_coap_ptr->payload_len);
+
+            leds[received_coap_ptr->payload_len] = '\0';
+            pc.printf("PUT: %s\r\n",leds);
+
+            //call LED strup update function here
+            set_leds(leds);
+
+            coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CHANGED);
+            sn_nsdl_send_coap_message(address, coap_res_ptr);
+        }
+    }
+
+    sn_coap_parser_release_allocated_coap_msg_mem(coap_res_ptr);
+    return 0;
+}
+
+int create_LEDbar_resource(sn_nsdl_resource_info_s *resource_ptr)
+{
+    nsdl_create_dynamic_resource(resource_ptr, sizeof(LEDBAR_RES_ID)-1, (uint8_t*)LEDBAR_RES_ID, sizeof(LEDBAR_RES_RT)-1, (uint8_t*)LEDBAR_RES_RT, 0, &LEDbar_resource_cb, (SN_GRS_GET_ALLOWED | SN_GRS_PUT_ALLOWED));
+    return 0;
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/resources/LEDbar.h	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,10 @@
+// Light resource implementation
+
+#ifndef LEDBAR_H
+#define LEDBAR_H
+
+#include "nsdl_support.h"
+
+int create_LEDbar_resource(sn_nsdl_resource_info_s *resource_ptr);
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/resources/gas_sensor.cpp	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,62 @@
+// gas sensor resource implementation
+
+#include "mbed.h"
+#include "nsdl_support.h"
+
+#define GAS_RES_ID    "11102/0/5700"
+#define GAS_RES_RT    "urn:X-mbed:gas-sensor"
+
+extern Serial pc;
+uint8_t gas_max_age = 0; 
+uint8_t gas_content_type = 50;
+
+AnalogIn gasSensor(A0);
+int gas_percent;
+char gasPctString[5];
+
+/* Only GET method allowed */
+static uint8_t gas_sensor_resource_cb(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto)
+{
+    sn_coap_hdr_s *coap_res_ptr = 0;
+    gas_percent = gasSensor.read() * 100;
+    sprintf(gasPctString,"%d", gas_percent);
+    pc.printf("gas callback\r\n");
+    pc.printf("gas percent %s\r\n", gasPctString);
+
+    if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_GET)
+    {
+        coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CONTENT);
+
+        coap_res_ptr->payload_len = strlen(gasPctString);
+        coap_res_ptr->payload_ptr = (uint8_t*)gasPctString;
+        
+        coap_res_ptr->content_type_ptr = &gas_content_type;
+        coap_res_ptr->content_type_len = sizeof(gas_content_type);
+        
+        coap_res_ptr->options_list_ptr = (sn_coap_options_list_s*)nsdl_alloc(sizeof(sn_coap_options_list_s));
+        if(!coap_res_ptr->options_list_ptr)
+            {
+            pc.printf("cant alloc option list for max-age\r\n");
+            coap_res_ptr->options_list_ptr = NULL; //FIXME report error and recover
+            }
+        memset(coap_res_ptr->options_list_ptr, 0, sizeof(sn_coap_options_list_s));
+        coap_res_ptr->options_list_ptr->max_age_ptr = &gas_max_age;
+        coap_res_ptr->options_list_ptr->max_age_len = sizeof(gas_max_age);
+
+        sn_nsdl_send_coap_message(address, coap_res_ptr);
+        nsdl_free(coap_res_ptr->options_list_ptr);
+        coap_res_ptr->options_list_ptr = NULL;
+        coap_res_ptr->content_type_ptr = NULL;// parser_release below tries to free this memory
+
+    }
+
+    sn_coap_parser_release_allocated_coap_msg_mem(coap_res_ptr);
+
+    return 0;
+}
+
+int create_gas_sensor_resource(sn_nsdl_resource_info_s *resource_ptr)
+{
+    nsdl_create_dynamic_resource(resource_ptr, sizeof(GAS_RES_ID)-1, (uint8_t*)GAS_RES_ID, sizeof(GAS_RES_RT)-1, (uint8_t*)GAS_RES_RT, 0, &gas_sensor_resource_cb, (SN_GRS_GET_ALLOWED));
+    return 0;
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/resources/gas_sensor.h	Mon Oct 20 02:04:20 2014 +0000
@@ -0,0 +1,10 @@
+// IPSO Illuminance Sensor implementation
+
+#ifndef GAS_SENSOR_H
+#define GAS_SENSOR_H
+
+#include "nsdl_support.h"
+
+int create_gas_sensor_resource(sn_nsdl_resource_info_s *resource_ptr);
+
+#endif