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Dependencies:   WebSocketClient WiflyInterface mbed messages

Fork of IoT_Ex by Damien Frost

source/iQ_globals.cpp@0:c5607b31fb07, 2016-10-04 (annotated)

Committer:
defrost
Date:
Tue Oct 04 11:34:47 2016 +0000
Revision:
0:c5607b31fb07
- Initial Commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
defrost 0:c5607b31fb07 1 // ******************
defrost 0:c5607b31fb07 2 // * iQ_globals.cpp *
defrost 0:c5607b31fb07 3 // ******************
defrost 0:c5607b31fb07 4 //
defrost 0:c5607b31fb07 5 // Created: 2015/03/19
defrost 0:c5607b31fb07 6 // By: Damien Frost
defrost 0:c5607b31fb07 7
defrost 0:c5607b31fb07 8 #include "mbed.h"
defrost 0:c5607b31fb07 9 #include "iQ_globals.h"
defrost 0:c5607b31fb07 10
defrost 0:c5607b31fb07 11 //#define DEBUG
defrost 0:c5607b31fb07 12 #define INFOMESSAGES
defrost 0:c5607b31fb07 13 #define WARNMESSAGES
defrost 0:c5607b31fb07 14 #define ERRMESSAGES
defrost 0:c5607b31fb07 15 #define FUNCNAME "GBL"
defrost 0:c5607b31fb07 16 #include "messages.h"
defrost 0:c5607b31fb07 17
defrost 0:c5607b31fb07 18 char* wifissid = "SC";
defrost 0:c5607b31fb07 19 char* wifipassword = "smartcellshield";
defrost 0:c5607b31fb07 20
defrost 0:c5607b31fb07 21 Serial pc(USBTX, USBRX);
defrost 0:c5607b31fb07 22 InterruptIn UIBut1(USER_BUTTON);
defrost 0:c5607b31fb07 23 Timer DisplayTimer;
defrost 0:c5607b31fb07 24
defrost 0:c5607b31fb07 25 WiflyInterface eth(D8, D2, D6, LED1, wifissid, wifipassword, WPA2);
defrost 0:c5607b31fb07 26
defrost 0:c5607b31fb07 27 int ReconnectAttempts = 0;
defrost 0:c5607b31fb07 28 int SendCounter = 0;
defrost 0:c5607b31fb07 29 extern int IoT_ID = 0;
defrost 0:c5607b31fb07 30
defrost 0:c5607b31fb07 31 Websocket ws;
defrost 0:c5607b31fb07 32
defrost 0:c5607b31fb07 33
defrost 0:c5607b31fb07 34 int SetupNetwork(int Tries){
defrost 0:c5607b31fb07 35 // Initialize the interface.
defrost 0:c5607b31fb07 36 // If no param is passed to init() then DHCP will be used on connect()
defrost 0:c5607b31fb07 37 int s = eth.init();
defrost 0:c5607b31fb07 38 int attempts = 1;
defrost 0:c5607b31fb07 39
defrost 0:c5607b31fb07 40 wait(1);
defrost 0:c5607b31fb07 41 if (s != NULL) {
defrost 0:c5607b31fb07 42 ERR("Could not initialise. Halting!");
defrost 0:c5607b31fb07 43 exit(0);
defrost 0:c5607b31fb07 44 }
defrost 0:c5607b31fb07 45
defrost 0:c5607b31fb07 46 INFO("Connecting to: %s", wifissid);
defrost 0:c5607b31fb07 47 DBG("Getting IP address...");
defrost 0:c5607b31fb07 48
defrost 0:c5607b31fb07 49 while (1) {
defrost 0:c5607b31fb07 50 // Connect to network:
defrost 0:c5607b31fb07 51 s = eth.connect();
defrost 0:c5607b31fb07 52 // If connection fails, retry for 5 attempts:
defrost 0:c5607b31fb07 53 if (s == false || s < 0) {
defrost 0:c5607b31fb07 54 INFO("Could not connect to network. Retrying!");
defrost 0:c5607b31fb07 55 attempts++;
defrost 0:c5607b31fb07 56 wait(1);
defrost 0:c5607b31fb07 57 } else {
defrost 0:c5607b31fb07 58
defrost 0:c5607b31fb07 59 break;
defrost 0:c5607b31fb07 60 }
defrost 0:c5607b31fb07 61 if(attempts > Tries){
defrost 0:c5607b31fb07 62 ERR("Network connection failed after %d attempts", Tries);
defrost 0:c5607b31fb07 63 return 0;
defrost 0:c5607b31fb07 64 }
defrost 0:c5607b31fb07 65 }
defrost 0:c5607b31fb07 66 INFO("Connected to: %s", wifissid);
defrost 0:c5607b31fb07 67 INFO("Got IP address: %s", eth.getIPAddress());
defrost 0:c5607b31fb07 68 IotStatus.SetFlag(SF_WIRELESSCONNECTED);
defrost 0:c5607b31fb07 69 return 1;
defrost 0:c5607b31fb07 70
defrost 0:c5607b31fb07 71 }
defrost 0:c5607b31fb07 72
defrost 0:c5607b31fb07 73 void SendNetworkData(void){
defrost 0:c5607b31fb07 74 char msg_buffer[CHARMSGBUFF];
defrost 0:c5607b31fb07 75 int intresult;
defrost 0:c5607b31fb07 76
defrost 0:c5607b31fb07 77 if(IotStatus.CheckFlag(SF_SERVERCONNECTED)){
defrost 0:c5607b31fb07 78 sprintf(msg_buffer, "%d,%d", IoT_ID, SendCounter);
defrost 0:c5607b31fb07 79 INFO("Sending: %s", msg_buffer); // When this line is commented out, the mbed never tries to reconnect to the server after one try. SUPER. Keeping this here also uses precious CPU time
defrost 0:c5607b31fb07 80 intresult = ws.send(msg_buffer);
defrost 0:c5607b31fb07 81 }else{
defrost 0:c5607b31fb07 82 intresult = -1;
defrost 0:c5607b31fb07 83 }
defrost 0:c5607b31fb07 84 DBG("intresult: %d", intresult);
defrost 0:c5607b31fb07 85
defrost 0:c5607b31fb07 86 if(intresult < 0){
defrost 0:c5607b31fb07 87 // Clear a status flag:
defrost 0:c5607b31fb07 88 IotStatus.ClearFlag(SF_SERVERCONNECTED);
defrost 0:c5607b31fb07 89 // Check to see if the wireless is still connected:
defrost 0:c5607b31fb07 90 DBG("Checking network status...");
defrost 0:c5607b31fb07 91 if(eth.checkNetworkStatus() != 3){
defrost 0:c5607b31fb07 92 IotStatus.ClearFlag(SF_WIRELESSCONNECTED);
defrost 0:c5607b31fb07 93 // Connect to the wireless network:
defrost 0:c5607b31fb07 94 if(IotStatus.CheckFlag(SF_AUTOCONNECT)){
defrost 0:c5607b31fb07 95 INFO("Reconnecting to Network...");
defrost 0:c5607b31fb07 96 if(SetupNetwork(1)>0){
defrost 0:c5607b31fb07 97 IotStatus.SetFlag(SF_WIRELESSCONNECTED);
defrost 0:c5607b31fb07 98 INFO("Connected to Network.");
defrost 0:c5607b31fb07 99 }else{
defrost 0:c5607b31fb07 100 WARN("Could not re-connect to the wireless network.");
defrost 0:c5607b31fb07 101 }
defrost 0:c5607b31fb07 102 }
defrost 0:c5607b31fb07 103 }else{
defrost 0:c5607b31fb07 104 DBG("Network connected.");
defrost 0:c5607b31fb07 105 }
defrost 0:c5607b31fb07 106
defrost 0:c5607b31fb07 107 if(IotStatus.CheckFlag(SF_AUTOCONNECT) && IotStatus.CheckFlag(SF_WIRELESSCONNECTED)){
defrost 0:c5607b31fb07 108 // Server connection was closed, try to reconnect:
defrost 0:c5607b31fb07 109 INFO("Reconnecting to Websocket Server on ws://%s:%d/ws...", SERVER_IP, WS_PORT);
defrost 0:c5607b31fb07 110 if(!ws.connect()){
defrost 0:c5607b31fb07 111 WARN("Could not connect to the server again...");
defrost 0:c5607b31fb07 112 IotStatus.ClearFlag(SF_SERVERCONNECTED);
defrost 0:c5607b31fb07 113 ReconnectAttempts++;
defrost 0:c5607b31fb07 114 if(ReconnectAttempts > 4){
defrost 0:c5607b31fb07 115 INFO("Failed after %d reconnect attempts. Resetting the Wifi Shield...", ReconnectAttempts);
defrost 0:c5607b31fb07 116 SetupNetwork(1);
defrost 0:c5607b31fb07 117 ReconnectAttempts = 0;
defrost 0:c5607b31fb07 118 }
defrost 0:c5607b31fb07 119 }else{
defrost 0:c5607b31fb07 120 INFO("Connected to ws://%s:%d/ws", SERVER_IP, WS_PORT);
defrost 0:c5607b31fb07 121 // Set a status flag:
defrost 0:c5607b31fb07 122 IotStatus.SetFlag(SF_SERVERCONNECTED);
defrost 0:c5607b31fb07 123 }
defrost 0:c5607b31fb07 124 }
defrost 0:c5607b31fb07 125 }
defrost 0:c5607b31fb07 126
defrost 0:c5607b31fb07 127 return;
defrost 0:c5607b31fb07 128 }
defrost 0:c5607b31fb07 129
defrost 0:c5607b31fb07 130 void ReceiveNetworkData(unsigned int * wifi_cmd, unsigned int * var, float * value){
defrost 0:c5607b31fb07 131 char msg_buffer[CHARMSGBUFF];
defrost 0:c5607b31fb07 132 char msg_buffer2[CHARMSGBUFF];
defrost 0:c5607b31fb07 133 // Check for data on the websocket:
defrost 0:c5607b31fb07 134 if(ws.readmsg(msg_buffer)){
defrost 0:c5607b31fb07 135 INFO("Received: %s", msg_buffer);
defrost 0:c5607b31fb07 136 sscanf(msg_buffer, "%d,%s", wifi_cmd, msg_buffer2);
defrost 0:c5607b31fb07 137 if(*wifi_cmd == CHANGEVAR_WIFI_CMD){
defrost 0:c5607b31fb07 138 // Get two more values:
defrost 0:c5607b31fb07 139 sscanf(msg_buffer2, "%d,%f", var, value);
defrost 0:c5607b31fb07 140 }else{
defrost 0:c5607b31fb07 141 // Get one:
defrost 0:c5607b31fb07 142 sscanf(msg_buffer2, "%f", value);
defrost 0:c5607b31fb07 143 }
defrost 0:c5607b31fb07 144 }else{
defrost 0:c5607b31fb07 145 //DBG("Did not receive anything :(\n\r");
defrost 0:c5607b31fb07 146 *wifi_cmd = NO_WIFI_CMD;
defrost 0:c5607b31fb07 147 *var = 0;
defrost 0:c5607b31fb07 148 *value = 0.0f;
defrost 0:c5607b31fb07 149 }
defrost 0:c5607b31fb07 150 return;
defrost 0:c5607b31fb07 151 }
defrost 0:c5607b31fb07 152
defrost 0:c5607b31fb07 153 void ModifyVariable(unsigned int wifi_var, float wifi_data){
defrost 0:c5607b31fb07 154 // modifies something in the SCS Controller:
defrost 0:c5607b31fb07 155 switch(wifi_var){
defrost 0:c5607b31fb07 156 case CV_LED:
defrost 0:c5607b31fb07 157
defrost 0:c5607b31fb07 158 break;
defrost 0:c5607b31fb07 159
defrost 0:c5607b31fb07 160 default:
defrost 0:c5607b31fb07 161 break;
defrost 0:c5607b31fb07 162 }
defrost 0:c5607b31fb07 163 return;
defrost 0:c5607b31fb07 164 }
defrost 0:c5607b31fb07 165
defrost 0:c5607b31fb07 166
defrost 0:c5607b31fb07 167