Simple HTTP GET and POST with ESP8266.
Dependencies: ESP8266Interface HTTPClient-SSL WebSocketClient mbed-rtos mbed
Fork of ESP8266_HTTP_HelloWorld by
resources/light.cpp
- Committer:
- michaeljkoster
- Date:
- 2014-12-24
- Revision:
- 0:6a891da014a3
File content as of revision 0:6a891da014a3:
// Light resource implementation #include "mbed.h" #include "nsdl_support.h" #include "light.h" #include "PololuLedStrip.h" PololuLedStrip ledStrip(D2); //#define LED_COUNT 60 #define LED_COUNT 120 rgb_color colors[LED_COUNT]; #define LIGHT_RES_ID "11100/0/5900" extern Serial pc; char led_color[] = {"00000000"}; void set_led_color(char *color_string) { static uint8_t red, green, blue, index ; int color_int ; sscanf(color_string, "%X", &color_int); index = color_int & 255; blue = color_int >> 8 & 255; green = color_int >> 16 & 255; red = color_int >> 24 & 255; if(index > 0 and index <= LED_COUNT) { colors[index-1] = (rgb_color) {red,green,blue} ; ledStrip.write(colors, LED_COUNT); } else if(index == 0) { for(int i = 0; i < LED_COUNT; i++) { colors[i] = (rgb_color) {red,green,blue} ; ledStrip.write(colors, LED_COUNT); wait_ms(10); } } else if(index == 255) { for( int i = LED_COUNT-1; i > 0; i-- ) { colors[i] = colors [i-1]; } colors[0] = (rgb_color) {red,green,blue} ; ledStrip.write(colors, LED_COUNT); } } /* Only GET and PUT method allowed */ static uint8_t light_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(led_color); coap_res_ptr->payload_ptr = (uint8_t*)led_color; 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 == 8) { memcpy(led_color, (char *)received_coap_ptr->payload_ptr, received_coap_ptr->payload_len); led_color[received_coap_ptr->payload_len] = '\0'; pc.printf("PUT: %s\r\n",led_color); //call LED strup update function here set_led_color(led_color); 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_light_resource(sn_nsdl_resource_info_s *resource_ptr) { nsdl_create_dynamic_resource(resource_ptr, sizeof(LIGHT_RES_ID)-1, (uint8_t*)LIGHT_RES_ID, 0, 0, 0, &light_resource_cb, (SN_GRS_GET_ALLOWED | SN_GRS_PUT_ALLOWED)); set_led_color("10000000"); set_led_color("00100000"); set_led_color("00001000"); set_led_color("00000000"); return 0; }