This is a full demo that connects to mbed Device Server. It is used with a I2C Grove Color sensor, so it should be compatible on all platforms that support Ethernet.
Dependencies: ColorDetectorV2 EthernetInterface mbed-rtos mbed nsdl
Fork of nespresso_endpoint by
mbed Software Configuration
The default mbed Device Server (NSP or mDS) configuration is used by an instance of the web app (Barista) here: http://barista-test.cloudapp.net:4005.
In main.cpp, find the following lines:
// **************************************************************************** // Configuration section // I2C Settings #define COLOR_SENSOR_SCL I2C_SCL #define COLOR_SENSOR_SDA I2C_SDA // Ethernet configuration /* Define this to enable DHCP, otherwise manual address configuration is used */ #define DHCP /* Manual IP configurations, if DHCP not defined */ #define IP "0.0.0.0" #define MASK "255.255.255.0" #define GW "0.0.0.0" // NSP configuration /* Change this IP address to that of your mbed Device Server installation if you're not using mbed Connector */ static const char* NSP_ADDRESS = "api.connector.mbed.org"; static const int NSP_PORT = 5683; char endpoint_name[] = "nespresso-machine-ethernet"; uint8_t ep_type[] = {"nespresso-endpoint"}; char nsp_domain[] = "56645321f5e24c49908e42f4d71b9ccb"; uint8_t lifetime_ptr[] = {"1200"}; // ****************************************************************************
Edit COLOR_SENSOR_SCL
and COLOR_SENSOR_SDA
to the appropriate I2C pins on your mbed platform.
You should not edit the DHCP/static IP settings if you are not using a static IP address. If you are using a static IP address, provide the appropriate information and remove the following line:
#define DHCP
Change endpoint_name
to uniquely identify your Nespresso endpoint.
If you are using mbed Connector, change the nsp_domain
string to your domain.
If you are using your own installation of mDS, you should change NSP_ADDRESS
to the url of your mDS installation, NSP_PORT
if you're using a non default port on mDS for CoAP, and nsp_domain
to a valid domain on your mDS instance ("domain" is the default mDS domain).
nsdl_support.cpp@15:73e84ac7fb2d, 2015-07-16 (annotated)
- Committer:
- bridadan
- Date:
- Thu Jul 16 18:32:49 2015 +0000
- Revision:
- 15:73e84ac7fb2d
- Parent:
- 13:867a5ab8d474
Updating ColorDetectorV2 (default to 3.3v)
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bridadan | 0:0782597771bc | 1 | // NSDL library support functions |
bridadan | 0:0782597771bc | 2 | |
bridadan | 0:0782597771bc | 3 | #include "mbed.h" |
bridadan | 0:0782597771bc | 4 | #include "nsdl_support.h" |
bridadan | 0:0782597771bc | 5 | #include "mbed.h" |
bridadan | 0:0782597771bc | 6 | #include "rtos.h" |
bridadan | 0:0782597771bc | 7 | #include "EthernetInterface.h" |
bridadan | 0:0782597771bc | 8 | |
bridadan | 0:0782597771bc | 9 | extern Serial pc; |
bridadan | 0:0782597771bc | 10 | extern EthernetInterface eth; |
bridadan | 0:0782597771bc | 11 | extern Endpoint nsp; |
bridadan | 0:0782597771bc | 12 | extern UDPSocket server; |
bridadan | 12:11577a49e50f | 13 | extern char endpoint_name[]; |
bridadan | 9:202680169650 | 14 | extern char nsp_domain[]; |
bridadan | 0:0782597771bc | 15 | extern uint8_t ep_type[]; |
bridadan | 0:0782597771bc | 16 | extern uint8_t lifetime_ptr[]; |
bridadan | 0:0782597771bc | 17 | |
bridadan | 0:0782597771bc | 18 | // Registration update variables |
bridadan | 0:0782597771bc | 19 | sn_nsdl_ep_parameters_s *endpoint_ptr = NULL; |
bridadan | 0:0782597771bc | 20 | Ticker registration_updater; |
bridadan | 0:0782597771bc | 21 | bool update_registration = false; |
bridadan | 0:0782597771bc | 22 | |
bridadan | 0:0782597771bc | 23 | // NSDL loop variables |
bridadan | 0:0782597771bc | 24 | sn_nsdl_addr_s received_packet_address; |
bridadan | 0:0782597771bc | 25 | uint8_t received_address[4]; |
bridadan | 0:0782597771bc | 26 | char buffer[1024]; |
bridadan | 0:0782597771bc | 27 | Endpoint from; |
bridadan | 0:0782597771bc | 28 | |
bridadan | 0:0782597771bc | 29 | /* The number of seconds between NSP registration messages */ |
bridadan | 0:0782597771bc | 30 | #define RD_UPDATE_PERIOD 60 |
bridadan | 0:0782597771bc | 31 | |
bridadan | 0:0782597771bc | 32 | void *nsdl_alloc(uint16_t size) |
bridadan | 0:0782597771bc | 33 | { |
bridadan | 0:0782597771bc | 34 | return malloc(size); |
bridadan | 0:0782597771bc | 35 | } |
bridadan | 0:0782597771bc | 36 | |
bridadan | 0:0782597771bc | 37 | void nsdl_free(void* ptr_to_free) |
bridadan | 0:0782597771bc | 38 | { |
bridadan | 0:0782597771bc | 39 | free(ptr_to_free); |
bridadan | 0:0782597771bc | 40 | } |
bridadan | 0:0782597771bc | 41 | |
bridadan | 0:0782597771bc | 42 | /* |
bridadan | 0:0782597771bc | 43 | * Create a static resoure |
bridadan | 0:0782597771bc | 44 | * Only get is allowed |
bridadan | 0:0782597771bc | 45 | */ |
bridadan | 0:0782597771bc | 46 | 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) |
bridadan | 0:0782597771bc | 47 | { |
bridadan | 0:0782597771bc | 48 | resource_structure->access = SN_GRS_GET_ALLOWED; |
bridadan | 0:0782597771bc | 49 | resource_structure->mode = SN_GRS_STATIC; |
bridadan | 0:0782597771bc | 50 | resource_structure->pathlen = pt_len; |
bridadan | 0:0782597771bc | 51 | resource_structure->path = pt; |
bridadan | 0:0782597771bc | 52 | resource_structure->resource_parameters_ptr->resource_type_len = rpp_len; |
bridadan | 0:0782597771bc | 53 | resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr; |
bridadan | 0:0782597771bc | 54 | resource_structure->resource = rsc; |
bridadan | 0:0782597771bc | 55 | resource_structure->resourcelen = rsc_len; |
bridadan | 0:0782597771bc | 56 | sn_nsdl_create_resource(resource_structure); |
bridadan | 0:0782597771bc | 57 | } |
bridadan | 0:0782597771bc | 58 | |
bridadan | 0:0782597771bc | 59 | 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) |
bridadan | 0:0782597771bc | 60 | { |
bridadan | 0:0782597771bc | 61 | resource_structure->access = (sn_grs_resource_acl_e)access_right; |
bridadan | 0:0782597771bc | 62 | resource_structure->resource = 0; |
bridadan | 0:0782597771bc | 63 | resource_structure->resourcelen = 0; |
bridadan | 0:0782597771bc | 64 | resource_structure->sn_grs_dyn_res_callback = callback_ptr; |
bridadan | 0:0782597771bc | 65 | resource_structure->mode = SN_GRS_DYNAMIC; |
bridadan | 0:0782597771bc | 66 | resource_structure->pathlen = pt_len; |
bridadan | 0:0782597771bc | 67 | resource_structure->path = pt; |
bridadan | 0:0782597771bc | 68 | resource_structure->resource_parameters_ptr->resource_type_len = rpp_len; |
bridadan | 0:0782597771bc | 69 | resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr; |
bridadan | 0:0782597771bc | 70 | resource_structure->resource_parameters_ptr->observable = is_observable; |
bridadan | 0:0782597771bc | 71 | sn_nsdl_create_resource(resource_structure); |
bridadan | 0:0782597771bc | 72 | } |
bridadan | 0:0782597771bc | 73 | |
bridadan | 0:0782597771bc | 74 | 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) |
bridadan | 0:0782597771bc | 75 | { |
bridadan | 9:202680169650 | 76 | printf("NSP_DOMAIN: %s\r\n", nsp_domain); |
bridadan | 0:0782597771bc | 77 | if (NULL == endpoint_structure) |
bridadan | 0:0782597771bc | 78 | { |
bridadan | 0:0782597771bc | 79 | endpoint_structure = (sn_nsdl_ep_parameters_s*)nsdl_alloc(sizeof(sn_nsdl_ep_parameters_s)); |
bridadan | 0:0782597771bc | 80 | } |
bridadan | 0:0782597771bc | 81 | if (endpoint_structure) |
bridadan | 6:9e3f6270fcb0 | 82 | { |
bridadan | 0:0782597771bc | 83 | memset(endpoint_structure, 0, sizeof(sn_nsdl_ep_parameters_s)); |
bridadan | 0:0782597771bc | 84 | endpoint_structure->endpoint_name_ptr = name; |
bridadan | 0:0782597771bc | 85 | endpoint_structure->endpoint_name_len = strlen((char*)name); |
bridadan | 9:202680169650 | 86 | endpoint_structure->domain_name_ptr = (uint8_t*)nsp_domain; |
bridadan | 9:202680169650 | 87 | endpoint_structure->domain_name_len = strlen((char*)nsp_domain); |
bridadan | 0:0782597771bc | 88 | endpoint_structure->type_ptr = typename_ptr; |
bridadan | 0:0782597771bc | 89 | endpoint_structure->type_len = strlen((char*)typename_ptr); |
bridadan | 0:0782597771bc | 90 | endpoint_structure->lifetime_ptr = lifetime_ptr; |
bridadan | 0:0782597771bc | 91 | endpoint_structure->lifetime_len = strlen((char*)lifetime_ptr); |
bridadan | 0:0782597771bc | 92 | } |
bridadan | 0:0782597771bc | 93 | return endpoint_structure; |
bridadan | 0:0782597771bc | 94 | } |
bridadan | 0:0782597771bc | 95 | |
bridadan | 0:0782597771bc | 96 | void nsdl_clean_register_endpoint(sn_nsdl_ep_parameters_s **endpoint_structure) |
bridadan | 0:0782597771bc | 97 | { |
bridadan | 0:0782597771bc | 98 | if (*endpoint_structure) |
bridadan | 0:0782597771bc | 99 | { |
bridadan | 0:0782597771bc | 100 | nsdl_free(*endpoint_structure); |
bridadan | 0:0782597771bc | 101 | *endpoint_structure = NULL; |
bridadan | 0:0782597771bc | 102 | } |
bridadan | 0:0782597771bc | 103 | } |
bridadan | 0:0782597771bc | 104 | |
bridadan | 0:0782597771bc | 105 | static uint8_t tx_cb(sn_nsdl_capab_e protocol, uint8_t *data_ptr, uint16_t data_len, sn_nsdl_addr_s *address_ptr) |
bridadan | 0:0782597771bc | 106 | { |
bridadan | 0:0782597771bc | 107 | pc.printf("TX callback!\n\rSending %d bytes\r\n", data_len); |
bridadan | 0:0782597771bc | 108 | |
bridadan | 0:0782597771bc | 109 | if(server.sendTo(nsp, (char*)data_ptr, data_len) != data_len) |
bridadan | 0:0782597771bc | 110 | pc.printf("sending failed\n\r"); |
bridadan | 0:0782597771bc | 111 | |
bridadan | 0:0782597771bc | 112 | return 1; |
bridadan | 0:0782597771bc | 113 | } |
bridadan | 0:0782597771bc | 114 | |
bridadan | 0:0782597771bc | 115 | static uint8_t rx_cb(sn_coap_hdr_s *coap_packet_ptr, sn_nsdl_addr_s *address_ptr) |
bridadan | 0:0782597771bc | 116 | { |
bridadan | 0:0782597771bc | 117 | pc.printf("RX callback!\r\n"); |
bridadan | 0:0782597771bc | 118 | return 0; |
bridadan | 0:0782597771bc | 119 | } |
bridadan | 0:0782597771bc | 120 | |
bridadan | 0:0782597771bc | 121 | void registration_ticker_func() { |
bridadan | 0:0782597771bc | 122 | update_registration = true; |
bridadan | 0:0782597771bc | 123 | } |
bridadan | 0:0782597771bc | 124 | |
bridadan | 6:9e3f6270fcb0 | 125 | bool register_endpoint(bool init) { |
bridadan | 6:9e3f6270fcb0 | 126 | bool endpoint_registered; |
bridadan | 6:9e3f6270fcb0 | 127 | sn_nsdl_ep_parameters_s *endpoint_ptr = NULL; |
bridadan | 6:9e3f6270fcb0 | 128 | if (init) { |
bridadan | 6:9e3f6270fcb0 | 129 | endpoint_ptr = nsdl_init_register_endpoint(endpoint_ptr, (uint8_t*)endpoint_name, ep_type, lifetime_ptr); |
bridadan | 6:9e3f6270fcb0 | 130 | if(sn_nsdl_register_endpoint(endpoint_ptr) != 0) { |
bridadan | 6:9e3f6270fcb0 | 131 | pc.printf("NSP initial registration failed\r\n"); |
bridadan | 6:9e3f6270fcb0 | 132 | endpoint_registered = false; |
bridadan | 6:9e3f6270fcb0 | 133 | } |
bridadan | 6:9e3f6270fcb0 | 134 | else { |
bridadan | 6:9e3f6270fcb0 | 135 | pc.printf("NSP initial registration OK\r\n"); |
bridadan | 6:9e3f6270fcb0 | 136 | endpoint_registered = true; |
bridadan | 6:9e3f6270fcb0 | 137 | } |
bridadan | 6:9e3f6270fcb0 | 138 | } |
bridadan | 6:9e3f6270fcb0 | 139 | else { |
bridadan | 6:9e3f6270fcb0 | 140 | endpoint_ptr = nsdl_init_register_endpoint(endpoint_ptr, NULL, NULL, NULL); |
bridadan | 6:9e3f6270fcb0 | 141 | if(sn_nsdl_update_registration(endpoint_ptr) != 0) { |
bridadan | 6:9e3f6270fcb0 | 142 | pc.printf("NSP re-registration failed\r\n"); |
bridadan | 6:9e3f6270fcb0 | 143 | endpoint_registered = false; |
bridadan | 6:9e3f6270fcb0 | 144 | } |
bridadan | 6:9e3f6270fcb0 | 145 | else { |
bridadan | 6:9e3f6270fcb0 | 146 | pc.printf("NSP re-registration OK\r\n"); |
bridadan | 6:9e3f6270fcb0 | 147 | endpoint_registered = true; |
bridadan | 6:9e3f6270fcb0 | 148 | } |
bridadan | 6:9e3f6270fcb0 | 149 | } |
bridadan | 0:0782597771bc | 150 | nsdl_clean_register_endpoint(&endpoint_ptr); |
bridadan | 6:9e3f6270fcb0 | 151 | |
bridadan | 6:9e3f6270fcb0 | 152 | return endpoint_registered; |
bridadan | 0:0782597771bc | 153 | } |
bridadan | 0:0782597771bc | 154 | void nsdl_init() |
bridadan | 0:0782597771bc | 155 | { |
bridadan | 0:0782597771bc | 156 | uint8_t nsp_addr[4]; |
bridadan | 0:0782597771bc | 157 | sn_nsdl_mem_s memory_cbs; |
bridadan | 0:0782597771bc | 158 | |
bridadan | 0:0782597771bc | 159 | /* Initialize libNsdl */ |
bridadan | 0:0782597771bc | 160 | memory_cbs.sn_nsdl_alloc = &nsdl_alloc; |
bridadan | 0:0782597771bc | 161 | memory_cbs.sn_nsdl_free = &nsdl_free; |
bridadan | 0:0782597771bc | 162 | if(sn_nsdl_init(&tx_cb, &rx_cb, &memory_cbs) == -1) |
bridadan | 0:0782597771bc | 163 | pc.printf("libNsdl init failed\r\n"); |
bridadan | 0:0782597771bc | 164 | else |
bridadan | 0:0782597771bc | 165 | pc.printf("libNsdl init done\r\n"); |
bridadan | 0:0782597771bc | 166 | |
bridadan | 0:0782597771bc | 167 | /* Set nsp address for library */ |
bridadan | 0:0782597771bc | 168 | set_NSP_address(nsp_addr, 5683, SN_NSDL_ADDRESS_TYPE_IPV4); |
bridadan | 0:0782597771bc | 169 | } |
bridadan | 0:0782597771bc | 170 | |
bridadan | 0:0782597771bc | 171 | void nsdl_event_loop_init() { |
bridadan | 13:867a5ab8d474 | 172 | server.set_blocking(false, 0); |
bridadan | 0:0782597771bc | 173 | memset(&received_packet_address, 0, sizeof(sn_nsdl_addr_s)); |
bridadan | 0:0782597771bc | 174 | received_packet_address.addr_ptr = received_address; |
bridadan | 0:0782597771bc | 175 | |
bridadan | 0:0782597771bc | 176 | registration_updater.attach(®istration_ticker_func, RD_UPDATE_PERIOD); |
bridadan | 0:0782597771bc | 177 | } |
bridadan | 0:0782597771bc | 178 | |
bridadan | 0:0782597771bc | 179 | void nsdl_event_loop_run_once() |
bridadan | 0:0782597771bc | 180 | { |
bridadan | 0:0782597771bc | 181 | if (update_registration) { |
bridadan | 0:0782597771bc | 182 | update_registration = false; |
bridadan | 6:9e3f6270fcb0 | 183 | if (!register_endpoint(false)) { |
bridadan | 6:9e3f6270fcb0 | 184 | register_endpoint(true); |
bridadan | 6:9e3f6270fcb0 | 185 | } |
bridadan | 0:0782597771bc | 186 | } |
bridadan | 0:0782597771bc | 187 | |
bridadan | 0:0782597771bc | 188 | int n = server.receiveFrom(from, buffer, sizeof(buffer)); |
bridadan | 0:0782597771bc | 189 | |
bridadan | 0:0782597771bc | 190 | if (n < 0) |
bridadan | 0:0782597771bc | 191 | { |
bridadan | 0:0782597771bc | 192 | pc.printf("Socket error\n\r"); |
bridadan | 0:0782597771bc | 193 | } |
bridadan | 0:0782597771bc | 194 | else |
bridadan | 0:0782597771bc | 195 | { |
bridadan | 0:0782597771bc | 196 | sn_nsdl_process_coap((uint8_t*)buffer, n, &received_packet_address); |
bridadan | 0:0782597771bc | 197 | } |
bridadan | 12:11577a49e50f | 198 | } |