wifi example for ASC platform, sending data to OneNet Cloud
Dependents: 8-0_OneNet_IoT_demo
wifi_example.cpp@0:cbe8a0553d45, 2017-03-29 (annotated)
- Committer:
- TaylorGy
- Date:
- Wed Mar 29 03:08:46 2017 +0000
- Revision:
- 0:cbe8a0553d45
wifi example by using Grove_UART_wifi module(based on ESP8266), send data in EDP form
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
TaylorGy | 0:cbe8a0553d45 | 1 | /************************************************************/ |
TaylorGy | 0:cbe8a0553d45 | 2 | /* (C) 2016 Beijing ARM Accelerator Technology Co., Ltd. */ |
TaylorGy | 0:cbe8a0553d45 | 3 | /* Description: Wifi Client by using Grove_wifi module. */ |
TaylorGy | 0:cbe8a0553d45 | 4 | /* Author: ss.pan */ |
TaylorGy | 0:cbe8a0553d45 | 5 | /* Version: 1.01 */ |
TaylorGy | 0:cbe8a0553d45 | 6 | /* Date: 2017-03-28 */ |
TaylorGy | 0:cbe8a0553d45 | 7 | /************************************************************/ |
TaylorGy | 0:cbe8a0553d45 | 8 | |
TaylorGy | 0:cbe8a0553d45 | 9 | #include "wifi_example.h" |
TaylorGy | 0:cbe8a0553d45 | 10 | |
TaylorGy | 0:cbe8a0553d45 | 11 | ESP8266 wifi(PA_9,PA_10); |
TaylorGy | 0:cbe8a0553d45 | 12 | Serial pc(SERIAL_TX, SERIAL_RX); |
TaylorGy | 0:cbe8a0553d45 | 13 | |
TaylorGy | 0:cbe8a0553d45 | 14 | EdpPacket* send_pack; |
TaylorGy | 0:cbe8a0553d45 | 15 | char send_buf[MAX_SEND_BUF_LEN]; |
TaylorGy | 0:cbe8a0553d45 | 16 | |
TaylorGy | 0:cbe8a0553d45 | 17 | /** |
TaylorGy | 0:cbe8a0553d45 | 18 | * @brief initial ESP8266,and connect to wifi ap |
TaylorGy | 0:cbe8a0553d45 | 19 | **/ |
TaylorGy | 0:cbe8a0553d45 | 20 | void connectInit(void) |
TaylorGy | 0:cbe8a0553d45 | 21 | { |
TaylorGy | 0:cbe8a0553d45 | 22 | bool ret; |
TaylorGy | 0:cbe8a0553d45 | 23 | pc.printf("starting......\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 24 | wifi.reset(); |
TaylorGy | 0:cbe8a0553d45 | 25 | wait_ms(500); |
TaylorGy | 0:cbe8a0553d45 | 26 | ret = wifi.startup(1); //start as client mode |
TaylorGy | 0:cbe8a0553d45 | 27 | wait_ms(200); |
TaylorGy | 0:cbe8a0553d45 | 28 | if(ret != true) { |
TaylorGy | 0:cbe8a0553d45 | 29 | pc.printf("startup failed\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 30 | ret = true; |
TaylorGy | 0:cbe8a0553d45 | 31 | } else { |
TaylorGy | 0:cbe8a0553d45 | 32 | pc.printf("set as client mode\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 33 | } |
TaylorGy | 0:cbe8a0553d45 | 34 | wifi.connect(APNAME,APPASSWD); //conenet to a existed wifi ap |
TaylorGy | 0:cbe8a0553d45 | 35 | wait_ms(200); |
TaylorGy | 0:cbe8a0553d45 | 36 | ret = wifi.isConnected(); //check whether connect successed |
TaylorGy | 0:cbe8a0553d45 | 37 | if(ret != true) { |
TaylorGy | 0:cbe8a0553d45 | 38 | pc.printf("connect failed\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 39 | ret = true; |
TaylorGy | 0:cbe8a0553d45 | 40 | } else { |
TaylorGy | 0:cbe8a0553d45 | 41 | pc.printf("now connected!\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 42 | } |
TaylorGy | 0:cbe8a0553d45 | 43 | pc.printf("the ip address is : %s\r\n",wifi.getIPAddress()); //send ip address to pc |
TaylorGy | 0:cbe8a0553d45 | 44 | ret = wifi.open("TCP", TCPNUM, TCPADD, TCPPORT); //connte to a TCP socket |
TaylorGy | 0:cbe8a0553d45 | 45 | wait_ms(200); |
TaylorGy | 0:cbe8a0553d45 | 46 | checkSocketStatus(); |
TaylorGy | 0:cbe8a0553d45 | 47 | } |
TaylorGy | 0:cbe8a0553d45 | 48 | |
TaylorGy | 0:cbe8a0553d45 | 49 | /** |
TaylorGy | 0:cbe8a0553d45 | 50 | * @brief checek socket status by calling a rebuilded function ESP8266::isOpen() |
TaylorGy | 0:cbe8a0553d45 | 51 | **/ |
TaylorGy | 0:cbe8a0553d45 | 52 | int checkSocketStatus(void) |
TaylorGy | 0:cbe8a0553d45 | 53 | { |
TaylorGy | 0:cbe8a0553d45 | 54 | int res; |
TaylorGy | 0:cbe8a0553d45 | 55 | res = wifi.isOpen(); |
TaylorGy | 0:cbe8a0553d45 | 56 | switch(res) { |
TaylorGy | 0:cbe8a0553d45 | 57 | case 0: { |
TaylorGy | 0:cbe8a0553d45 | 58 | pc.printf("socket conneceted successfully\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 59 | return res; |
TaylorGy | 0:cbe8a0553d45 | 60 | } |
TaylorGy | 0:cbe8a0553d45 | 61 | case -1: { |
TaylorGy | 0:cbe8a0553d45 | 62 | pc.printf("unknown error\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 63 | return res; |
TaylorGy | 0:cbe8a0553d45 | 64 | } |
TaylorGy | 0:cbe8a0553d45 | 65 | case -2: { |
TaylorGy | 0:cbe8a0553d45 | 66 | pc.printf("connected to ap, get an ip address\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 67 | return res; |
TaylorGy | 0:cbe8a0553d45 | 68 | } |
TaylorGy | 0:cbe8a0553d45 | 69 | case -4: { |
TaylorGy | 0:cbe8a0553d45 | 70 | pc.printf("lost connection\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 71 | return res; |
TaylorGy | 0:cbe8a0553d45 | 72 | } |
TaylorGy | 0:cbe8a0553d45 | 73 | case -5: { |
TaylorGy | 0:cbe8a0553d45 | 74 | pc.printf("unconnected to ap\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 75 | return res; |
TaylorGy | 0:cbe8a0553d45 | 76 | } |
TaylorGy | 0:cbe8a0553d45 | 77 | default: { |
TaylorGy | 0:cbe8a0553d45 | 78 | pc.printf("unknown error:%d\r\n",res); |
TaylorGy | 0:cbe8a0553d45 | 79 | break; |
TaylorGy | 0:cbe8a0553d45 | 80 | } |
TaylorGy | 0:cbe8a0553d45 | 81 | } |
TaylorGy | 0:cbe8a0553d45 | 82 | return; |
TaylorGy | 0:cbe8a0553d45 | 83 | } |
TaylorGy | 0:cbe8a0553d45 | 84 | |
TaylorGy | 0:cbe8a0553d45 | 85 | |
TaylorGy | 0:cbe8a0553d45 | 86 | /** |
TaylorGy | 0:cbe8a0553d45 | 87 | * @brief send cJSON type data |
TaylorGy | 0:cbe8a0553d45 | 88 | **/ |
TaylorGy | 0:cbe8a0553d45 | 89 | void sendJsonDat(char* dataName, float data) |
TaylorGy | 0:cbe8a0553d45 | 90 | { |
TaylorGy | 0:cbe8a0553d45 | 91 | bool ret; |
TaylorGy | 0:cbe8a0553d45 | 92 | cJSON *json_data = cJSON_CreateObject(); //create a new json data |
TaylorGy | 0:cbe8a0553d45 | 93 | cJSON_AddNumberToObject(json_data, dataName, data); //pack data into json package |
TaylorGy | 0:cbe8a0553d45 | 94 | |
TaylorGy | 0:cbe8a0553d45 | 95 | send_pack = PacketSavedataJson(DEVICEID, json_data, 3); //pack send data into EDP package |
TaylorGy | 0:cbe8a0553d45 | 96 | pc.printf("now sending JSON from data to OneNet\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 97 | ret = wifi.send(0,(const char*)send_pack->_data,send_pack->_write_pos); //send packge to OneNet Cloud |
TaylorGy | 0:cbe8a0553d45 | 98 | if(ret != true) { //check whether send successfully |
TaylorGy | 0:cbe8a0553d45 | 99 | pc.printf("failed to send Json data\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 100 | ret = true; |
TaylorGy | 0:cbe8a0553d45 | 101 | DeleteBuffer(&send_pack); //delete send_packge, unless may cause memory leak |
TaylorGy | 0:cbe8a0553d45 | 102 | } else { |
TaylorGy | 0:cbe8a0553d45 | 103 | pc.printf("Json data sended\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 104 | DeleteBuffer(&send_pack); //delete send_packge, unless may cause memory leak |
TaylorGy | 0:cbe8a0553d45 | 105 | } |
TaylorGy | 0:cbe8a0553d45 | 106 | cJSON_Delete(json_data); //delete json_data, unless may cause memory leak |
TaylorGy | 0:cbe8a0553d45 | 107 | wait_ms(500); |
TaylorGy | 0:cbe8a0553d45 | 108 | } |
TaylorGy | 0:cbe8a0553d45 | 109 | |
TaylorGy | 0:cbe8a0553d45 | 110 | /** |
TaylorGy | 0:cbe8a0553d45 | 111 | * @brief send data to OneNet Cloud |
TaylorGy | 0:cbe8a0553d45 | 112 | **/ |
TaylorGy | 0:cbe8a0553d45 | 113 | void sendData(char* dataName, float data) |
TaylorGy | 0:cbe8a0553d45 | 114 | { |
TaylorGy | 0:cbe8a0553d45 | 115 | char text[25] = {0}; |
TaylorGy | 0:cbe8a0553d45 | 116 | bool ret; |
TaylorGy | 0:cbe8a0553d45 | 117 | memset(send_buf,0,MAX_SEND_BUF_LEN); //clean send_buf to ensure no remained buffer |
TaylorGy | 0:cbe8a0553d45 | 118 | |
TaylorGy | 0:cbe8a0553d45 | 119 | strcat(send_buf, ",;"); |
TaylorGy | 0:cbe8a0553d45 | 120 | strcat(send_buf, dataName); |
TaylorGy | 0:cbe8a0553d45 | 121 | strcat(send_buf, ","); |
TaylorGy | 0:cbe8a0553d45 | 122 | sprintf(text,"%8.3f",data); |
TaylorGy | 0:cbe8a0553d45 | 123 | strcat(send_buf, text); |
TaylorGy | 0:cbe8a0553d45 | 124 | strcat(send_buf, ";"); |
TaylorGy | 0:cbe8a0553d45 | 125 | |
TaylorGy | 0:cbe8a0553d45 | 126 | pc.printf("now sending NORMAL data to OneNet\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 127 | send_pack = PacketSavedataSimpleString(DEVICEID, send_buf); //pack data into EDP Package |
TaylorGy | 0:cbe8a0553d45 | 128 | ret = wifi.send(0,(const char*)send_pack->_data,send_pack->_write_pos); //send packge to OneNet Cloud |
TaylorGy | 0:cbe8a0553d45 | 129 | if(ret != true) { //check whether send successfully |
TaylorGy | 0:cbe8a0553d45 | 130 | pc.printf("failed to send normal data\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 131 | ret = true; |
TaylorGy | 0:cbe8a0553d45 | 132 | DeleteBuffer(&send_pack); //delete send_packge, unless may cause memory leak |
TaylorGy | 0:cbe8a0553d45 | 133 | } else { |
TaylorGy | 0:cbe8a0553d45 | 134 | pc.printf("normal data sended\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 135 | DeleteBuffer(&send_pack); //delete send_packge, unless may cause memory leak |
TaylorGy | 0:cbe8a0553d45 | 136 | } |
TaylorGy | 0:cbe8a0553d45 | 137 | wait_ms(500); |
TaylorGy | 0:cbe8a0553d45 | 138 | } |
TaylorGy | 0:cbe8a0553d45 | 139 | |
TaylorGy | 0:cbe8a0553d45 | 140 | /** |
TaylorGy | 0:cbe8a0553d45 | 141 | * @brief make the device link to OneNet Cloud |
TaylorGy | 0:cbe8a0553d45 | 142 | **/ |
TaylorGy | 0:cbe8a0553d45 | 143 | void devLink(const char* devid, const char* auth_key) |
TaylorGy | 0:cbe8a0553d45 | 144 | { |
TaylorGy | 0:cbe8a0553d45 | 145 | bool ret; |
TaylorGy | 0:cbe8a0553d45 | 146 | pc.printf("now linking to OneNet...\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 147 | send_pack = PacketConnect1(devid,auth_key); //pack Device authentication information into EDP package |
TaylorGy | 0:cbe8a0553d45 | 148 | wait_ms(200); |
TaylorGy | 0:cbe8a0553d45 | 149 | ret = wifi.send(0,(const char*)send_pack->_data,send_pack->_write_pos); //send packge to OneNet Cloud |
TaylorGy | 0:cbe8a0553d45 | 150 | wait_ms(500); |
TaylorGy | 0:cbe8a0553d45 | 151 | if(ret != true) { //check whether send successfully |
TaylorGy | 0:cbe8a0553d45 | 152 | pc.printf("failed to link to OneNet\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 153 | ret = true; |
TaylorGy | 0:cbe8a0553d45 | 154 | DeleteBuffer(&send_pack); //delete send_packge, unless may cause memory leak |
TaylorGy | 0:cbe8a0553d45 | 155 | } else { |
TaylorGy | 0:cbe8a0553d45 | 156 | pc.printf("linked to OneNet\r\n"); |
TaylorGy | 0:cbe8a0553d45 | 157 | DeleteBuffer(&send_pack); //delete send_packge, unless may cause memory leak |
TaylorGy | 0:cbe8a0553d45 | 158 | } |
TaylorGy | 0:cbe8a0553d45 | 159 | } |