Thomas Pettet / Mbed 2 deprecated Smart_Wall_Outlet

Demo code for a Wi-Fi controlled wall outlet that monitors light intensity, temperature, and motion and can control which plugs are supplied with power based off of user preference.

Dependencies:   BH1750 DHT11_Lib mbed

Fork of ECE4180_Lab4_ESP8266_IoT_Outlets by Deron Mai

main.cpp@2:d4c6bc0f2dc4, 2015-02-19 (annotated)

Committer:
star297
Date:
Thu Feb 19 23:47:54 2015 +0000
Revision:
2:d4c6bc0f2dc4
Parent:
1:71ed1afbf344
Child:
3:f7febfa77784
WEB page update, added pwm speaker

Who changed what in which revision?

UserRevisionLine numberNew contents of line
star297 0:e2a155f50119 1 // ESP8266 Static page WEB server to control Mbed
star297 0:e2a155f50119 2
star297 0:e2a155f50119 3 #include "mbed.h"
star297 0:e2a155f50119 4 #include "DS18B20.h"
star297 0:e2a155f50119 5
star297 0:e2a155f50119 6 Serial pc(USBTX, USBRX);
star297 0:e2a155f50119 7 Serial esp(PTE0, PTE1); // tx, rx
star297 0:e2a155f50119 8
star297 2:d4c6bc0f2dc4 9 DS18B20 thermom(A0, DS18B20::RES_12_BIT);
star297 2:d4c6bc0f2dc4 10
star297 0:e2a155f50119 11 // Standard Mbed LED definitions
star297 0:e2a155f50119 12 DigitalOut led1(LED_RED); // (PTB18)
star297 0:e2a155f50119 13 DigitalOut led2(LED_GREEN); // (PTB19)
star297 0:e2a155f50119 14 DigitalOut led3(LED_BLUE); // (PTD1)
star297 0:e2a155f50119 15
star297 0:e2a155f50119 16 // Digital Out and In pins, can be configured to any suitable pin depending on Platform
star297 2:d4c6bc0f2dc4 17 DigitalOut Out1(D7);
star297 2:d4c6bc0f2dc4 18 DigitalOut Out2(D8);
star297 2:d4c6bc0f2dc4 19 DigitalOut Out3(D4);
star297 0:e2a155f50119 20
star297 2:d4c6bc0f2dc4 21 DigitalIn In1(A2);
star297 2:d4c6bc0f2dc4 22 DigitalIn In2(A3);
star297 2:d4c6bc0f2dc4 23 DigitalIn In3(A4);
star297 0:e2a155f50119 24
star297 2:d4c6bc0f2dc4 25 PwmOut speaker(D5);
star297 2:d4c6bc0f2dc4 26 AnalogIn BATin(A1);
star297 0:e2a155f50119 27
star297 0:e2a155f50119 28 Timer t1;
star297 1:71ed1afbf344 29 Timer t2;
star297 1:71ed1afbf344 30
star297 1:71ed1afbf344 31 struct tm t;
star297 0:e2a155f50119 32
star297 2:d4c6bc0f2dc4 33 int buflen, DataRX, count, getcount, ended, servreq, timeout;
star297 2:d4c6bc0f2dc4 34 int bufl, ipdLen, linkID, weberror, webcounter;
star297 0:e2a155f50119 35 float temperature, AdcIn, Ht;
star297 0:e2a155f50119 36 float R1=100000, R2=10000; // resistor values to give a 10:1 reduction of measured AnalogIn voltage
star297 0:e2a155f50119 37 char Vcc[10];
star297 0:e2a155f50119 38 char Temp[10];
star297 0:e2a155f50119 39 char temp[10];
star297 2:d4c6bc0f2dc4 40 char webcount[8];
star297 2:d4c6bc0f2dc4 41 char lasthit[60];
star297 0:e2a155f50119 42 char timebuf[30];
star297 0:e2a155f50119 43 char type[16];
star297 0:e2a155f50119 44 char type1[16];
star297 0:e2a155f50119 45 char channel[2];
star297 0:e2a155f50119 46 char snd[256];
star297 0:e2a155f50119 47 char webdata[1024]; // This may need to be bigger depending on WEB browser used
star297 2:d4c6bc0f2dc4 48 char buf[4096]; // Currently using 1407 characters, Increase this if more web page data added
star297 0:e2a155f50119 49
star297 0:e2a155f50119 50 void SendCMD(),getreply(),ReadWebData(),startserver(),sendpage(),SendWEB(),sendcheck();
star297 2:d4c6bc0f2dc4 51 void gettime(),gettemp(),getbattery(),setRTC(),beep();
star297 0:e2a155f50119 52
star297 1:71ed1afbf344 53 // manual set RTC values
star297 2:d4c6bc0f2dc4 54 int minute =13; // 0-59
star297 2:d4c6bc0f2dc4 55 int hour =15; // 2-23
star297 2:d4c6bc0f2dc4 56 int dayofmonth =19; // 1-31
star297 1:71ed1afbf344 57 int month =2; // 1-12
star297 1:71ed1afbf344 58 int year =15; // last 2 digits
star297 2:d4c6bc0f2dc4 59
star297 2:d4c6bc0f2dc4 60 int port =90; // set server port
star297 1:71ed1afbf344 61
star297 0:e2a155f50119 62 // Serial Interrupt read ESP data
star297 0:e2a155f50119 63 void callback() {
star297 0:e2a155f50119 64 while (esp.readable()) {buf[count] = esp.getc();count++;}
star297 0:e2a155f50119 65 if(strlen(buf)>buflen){DataRX=1;}
star297 0:e2a155f50119 66 }
star297 0:e2a155f50119 67
star297 0:e2a155f50119 68 int main() {
star297 0:e2a155f50119 69 led1=1,led2=1,led3=1;
star297 0:e2a155f50119 70 pc.baud(115200);
star297 0:e2a155f50119 71 esp.baud(115200); // ESP8266 baudrate.
star297 1:71ed1afbf344 72 if (time(NULL) < 1420070400) {setRTC();}
star297 2:d4c6bc0f2dc4 73 beep();
star297 0:e2a155f50119 74 startserver();
star297 0:e2a155f50119 75
star297 0:e2a155f50119 76 while(1){
star297 0:e2a155f50119 77
star297 0:e2a155f50119 78 if(DataRX==1){
star297 0:e2a155f50119 79 ReadWebData();
star297 2:d4c6bc0f2dc4 80 beep();
star297 0:e2a155f50119 81 if (servreq == 1 && weberror == 0){sendpage();}
star297 0:e2a155f50119 82 pc.printf(" IPD Data:\r\n\n Link ID = %d,\r\n IPD Header Length = %d \r\n IPD Type = %s\r\n", linkID, ipdLen, type);
star297 0:e2a155f50119 83 pc.printf("\n\n HTTP Packet: \n\n%s\n", webdata);
star297 0:e2a155f50119 84 pc.printf(" Web Characters sent : %d\n\n", bufl);
star297 0:e2a155f50119 85 pc.printf(" -------------------------------------\n\n");
star297 0:e2a155f50119 86 esp.attach(&callback);
star297 2:d4c6bc0f2dc4 87 strcpy(lasthit, timebuf);
star297 0:e2a155f50119 88 servreq=0;
star297 2:d4c6bc0f2dc4 89 }
star297 2:d4c6bc0f2dc4 90 if(t2.read()>900){startserver();} // restart server every 15 minutes after no activity in case of ESP lock out.
star297 0:e2a155f50119 91 }
star297 0:e2a155f50119 92 }
star297 0:e2a155f50119 93 // Static WEB page
star297 0:e2a155f50119 94 void sendpage()
star297 0:e2a155f50119 95 {
star297 2:d4c6bc0f2dc4 96 gettemp();getbattery();gettime();
star297 0:e2a155f50119 97 memset(buf, '\0', sizeof(buf));
star297 2:d4c6bc0f2dc4 98
star297 2:d4c6bc0f2dc4 99 // WEB page data
star297 2:d4c6bc0f2dc4 100 strcpy(buf, "<!DOCTYPE html>");
star297 2:d4c6bc0f2dc4 101 strcat(buf, "<html><head><title>ESP8266 Mbed</title></head>");
star297 2:d4c6bc0f2dc4 102 strcat(buf, "<body>");
star297 2:d4c6bc0f2dc4 103 strcat(buf, "<div style=\"text-align:center; background-color:#F4F4F4; color:#00AEDB;\"><h1>ESP8266 Mbed Web Controller</h1>");
star297 2:d4c6bc0f2dc4 104 strcat(buf, "Hit Count - ");
star297 2:d4c6bc0f2dc4 105 strcat(buf, webcount);
star297 2:d4c6bc0f2dc4 106 strcat(buf, "<br>Last Hit - ");
star297 2:d4c6bc0f2dc4 107 strcat(buf, lasthit);
star297 2:d4c6bc0f2dc4 108 strcat(buf, "</div><br /><hr>");
star297 0:e2a155f50119 109 strcat(buf, "<h3>Mbed RTC Time - ");
star297 0:e2a155f50119 110 strcat(buf, timebuf);
star297 0:e2a155f50119 111 strcat(buf, "</h3>\r\n");
star297 2:d4c6bc0f2dc4 112 strcat(buf, "<p><form method=\"POST\"><strong> Temperature: <input type=\"text\" size=6 value=\"");
star297 0:e2a155f50119 113 strcat(buf, Temp);
star297 0:e2a155f50119 114 strcat(buf, "\"> <sup>O</sup>C <form method=\"POST\"> <strong> Battery: <input type=\"text\" size=4 value=\"");
star297 0:e2a155f50119 115 strcat(buf, Vcc);
star297 0:e2a155f50119 116 strcat(buf, "\"> </sup>V");
star297 0:e2a155f50119 117 if(led1==1){strcat(buf, "<p><input type=\"radio\" name=\"led1\" value=\"0\" checked> Red LED off");
star297 0:e2a155f50119 118 strcat(buf, "<br><input type=\"radio\" name=\"led1\" value=\"1\" > Red LED on");}
star297 0:e2a155f50119 119 else{strcat(buf, "<p><input type=\"radio\" name=\"led1\" value=\"0\" > Red LED off");
star297 0:e2a155f50119 120 strcat(buf, "<br><input type=\"radio\" name=\"led1\" value=\"1\" checked> Red LED on");}
star297 0:e2a155f50119 121 if(Out1==0){strcat(buf, "<p><input type=\"radio\" name=\"Out1\" value=\"0\" checked> Digital Out 1 off");
star297 0:e2a155f50119 122 strcat(buf, "<br><input type=\"radio\" name=\"Out1\" value=\"1\" > Digital Out 1 on");}
star297 0:e2a155f50119 123 else{strcat(buf, "<p><input type=\"radio\" name=\"Out1\" value=\"0\" > Digital Out 1 off");
star297 0:e2a155f50119 124 strcat(buf, "<br><input type=\"radio\" name=\"Out1\" value=\"1\" checked> Digital Out 1 on");}
star297 0:e2a155f50119 125 if(Out2==0){strcat(buf, "<p><input type=\"radio\" name=\"Out2\" value=\"0\" checked> Digital Out 2 off");
star297 0:e2a155f50119 126 strcat(buf, "<br><input type=\"radio\" name=\"Out2\" value=\"1\" > Digital Out 2 on");}
star297 0:e2a155f50119 127 else{strcat(buf, "<p><input type=\"radio\" name=\"Out2\" value=\"0\" > Digital Out 2 off");
star297 0:e2a155f50119 128 strcat(buf, "<br><input type=\"radio\" name=\"Out2\" value=\"1\" checked> Digital Out 2 on");}
star297 0:e2a155f50119 129 if(Out3==0){strcat(buf, "<p><input type=\"radio\" name=\"Out3\" value=\"0\" checked> Digital Out 3 off");
star297 0:e2a155f50119 130 strcat(buf, "<br><input type=\"radio\" name=\"Out3\" value=\"1\" > Digital Out 3 on");}
star297 0:e2a155f50119 131 else{strcat(buf, "<p><input type=\"radio\" name=\"Out3\" value=\"0\" > Digital Out 3 off");
star297 0:e2a155f50119 132 strcat(buf, "<br><input type=\"radio\" name=\"Out3\" value=\"1\" checked> Digital Out 3 on");}
star297 0:e2a155f50119 133 if(In1==0){strcat(buf, "<p><input type=\"radio\" name=\"In1\" value=\"0\" > Digital In 1");}
star297 0:e2a155f50119 134 else{strcat(buf, "<p><input type=\"radio\" name=\"In1\" value=\"1\" checked> Digital In 1");}
star297 0:e2a155f50119 135 if(In2==0){strcat(buf, "<br><input type=\"radio\" name=\"In2\" value=\"0\" > Digital In 2");}
star297 0:e2a155f50119 136 else{strcat(buf, "<br><input type=\"radio\" name=\"In2\" value=\"1\" checked> Digital In 2");}
star297 0:e2a155f50119 137 if(In3==0){strcat(buf, "<br><input type=\"radio\" name=\"In3\" value=\"0\" > Digital In 3");}
star297 2:d4c6bc0f2dc4 138 else{strcat(buf, "<br><input type=\"radio\" name=\"In3\" value=\"1\" checked> Digital In 3");}
star297 2:d4c6bc0f2dc4 139 strcat(buf, "</strong><p><input type=\"submit\" value=\"send-refresh\" style=\"background: #3498db;");
star297 2:d4c6bc0f2dc4 140 strcat(buf, "background-image:-webkit-linear-gradient(top, #3498db, #2980b9);");
star297 2:d4c6bc0f2dc4 141 strcat(buf, "background-image:linear-gradient(to bottom, #3498db, #2980b9);");
star297 2:d4c6bc0f2dc4 142 strcat(buf, "-webkit-border-radius:12;border-radius: 12px;font-family: Arial;color:#ffffff;font-size:20px;padding:");
star297 2:d4c6bc0f2dc4 143 strcat(buf, "10px 20px 10px 20px; border:solid #103c57 3px;text-decoration: none;");
star297 2:d4c6bc0f2dc4 144 strcat(buf, "background: #3cb0fd;");
star297 2:d4c6bc0f2dc4 145 strcat(buf, "background-image:-webkit-linear-gradient(top,#3cb0fd,#1a5f8a);");
star297 2:d4c6bc0f2dc4 146 strcat(buf, "background-image:linear-gradient(to bottom,#3cb0fd,#1a5f8a);");
star297 2:d4c6bc0f2dc4 147 strcat(buf, "text-decoration:none;\"></form></span>");
star297 0:e2a155f50119 148 strcat(buf, "<p/><h2>How to use:</h2><ul>");
star297 0:e2a155f50119 149 strcat(buf, "<li>Select the Radio buttons to control the digital out pins.</li>");
star297 2:d4c6bc0f2dc4 150 strcat(buf, "<li>Click 'Send-Refresh' to send.</li>");
star297 2:d4c6bc0f2dc4 151 strcat(buf, "<li>Use the 'Send-Refresh' button to refresh the data.</li>");
star297 0:e2a155f50119 152 strcat(buf, "</ul>");
star297 2:d4c6bc0f2dc4 153 strcat(buf, "</body></html>");
star297 0:e2a155f50119 154 // end of WEB page data
star297 0:e2a155f50119 155 bufl = strlen(buf); // get total page buffer length
star297 0:e2a155f50119 156 sprintf(snd,"AT+CIPSEND=%s,%d\r\n", channel, bufl); // send IPD link channel and buffer character length.
star297 0:e2a155f50119 157 SendCMD();
star297 0:e2a155f50119 158 wait_ms(100);
star297 0:e2a155f50119 159 SendWEB(); // send web page
star297 2:d4c6bc0f2dc4 160 memset(buf, '\0', sizeof(buf));
star297 0:e2a155f50119 161 sendcheck();
star297 0:e2a155f50119 162 }
star297 0:e2a155f50119 163
star297 0:e2a155f50119 164 // wait for ESP "SEND OK" reply, then close IP to load web page, if lock out, system fully restarts
star297 0:e2a155f50119 165 void sendcheck()
star297 0:e2a155f50119 166 {
star297 0:e2a155f50119 167 timeout=200;
star297 1:71ed1afbf344 168 weberror=1;t2.reset();t2.start();
star297 1:71ed1afbf344 169 while(weberror==1 && t2.read() <10){
star297 0:e2a155f50119 170 getreply();
star297 0:e2a155f50119 171 if (strstr(buf, "SEND OK") != NULL) {weberror=0;} // wait for valid SEND OK
star297 0:e2a155f50119 172 }
star297 2:d4c6bc0f2dc4 173 t2.reset();
star297 0:e2a155f50119 174 if(weberror==1){
star297 0:e2a155f50119 175 pc.printf("\n\n\n ++++++++++ WEB Connect Error, restarting ... ++++++++++\n\n");
star297 0:e2a155f50119 176 NVIC_SystemReset();}
star297 0:e2a155f50119 177 strcpy(snd, "AT+CIPCLOSE=0\r\n");
star297 0:e2a155f50119 178 SendCMD();
star297 0:e2a155f50119 179 }
star297 0:e2a155f50119 180
star297 0:e2a155f50119 181 // Reads and processes GET and POST web data
star297 0:e2a155f50119 182 void ReadWebData()
star297 0:e2a155f50119 183 {
star297 0:e2a155f50119 184 wait_ms(200);
star297 0:e2a155f50119 185 led3=0;
star297 0:e2a155f50119 186 count=0;DataRX=0;weberror=0;
star297 0:e2a155f50119 187 esp.attach(NULL);
star297 0:e2a155f50119 188 int x = strcspn (buf,"+");
star297 0:e2a155f50119 189 if(x){
star297 0:e2a155f50119 190 strcpy(webdata, buf + x);weberror=0;
star297 0:e2a155f50119 191 int numMatched = sscanf(webdata,"+IPD,%d,%d:%s", &linkID, &ipdLen, type);
star297 0:e2a155f50119 192 if( strstr(webdata, "led1=1") != NULL ) {led1=0;}
star297 0:e2a155f50119 193 if( strstr(webdata, "led1=0") != NULL ) {led1=1;}
star297 0:e2a155f50119 194 if( strstr(webdata, "Out1=1") != NULL ) {Out1=1;}
star297 0:e2a155f50119 195 if( strstr(webdata, "Out1=0") != NULL ) {Out1=0;}
star297 0:e2a155f50119 196 if( strstr(webdata, "Out2=1") != NULL ) {Out2=1;}
star297 0:e2a155f50119 197 if( strstr(webdata, "Out2=0") != NULL ) {Out2=0;}
star297 0:e2a155f50119 198 if( strstr(webdata, "Out3=1") != NULL ) {Out3=1;}
star297 0:e2a155f50119 199 if( strstr(webdata, "Out3=0") != NULL ) {Out3=0;}
star297 0:e2a155f50119 200 sprintf(channel, "%d",linkID);
star297 0:e2a155f50119 201 if (strstr(webdata, "GET") != NULL) {servreq=1;}
star297 0:e2a155f50119 202 if (strstr(webdata, "POST") != NULL) {servreq=1;}
star297 2:d4c6bc0f2dc4 203 webcounter++;
star297 2:d4c6bc0f2dc4 204 sprintf(webcount, "%d",webcounter);
star297 0:e2a155f50119 205 }
star297 2:d4c6bc0f2dc4 206 else {strcpy(webdata, buf);weberror=1;}
star297 0:e2a155f50119 207 led3=1;
star297 0:e2a155f50119 208 }
star297 0:e2a155f50119 209 // Starts and restarts webserver if errors detected.
star297 0:e2a155f50119 210 void startserver()
star297 0:e2a155f50119 211 {
star297 0:e2a155f50119 212 esp.attach(NULL);
star297 0:e2a155f50119 213 wait(1);
star297 1:71ed1afbf344 214 gettime();
star297 1:71ed1afbf344 215 pc.printf("\n\n RTC time %s\r\n\n",timebuf);
star297 1:71ed1afbf344 216 pc.printf("++++++++++ Resetting ESP ++++++++++\r\n");
star297 0:e2a155f50119 217 strcpy(snd,"AT+RST\r\n");
star297 0:e2a155f50119 218 SendCMD();
star297 2:d4c6bc0f2dc4 219 timeout=2000;getcount=336;
star297 1:71ed1afbf344 220 getreply();
star297 1:71ed1afbf344 221 if (strstr(buf, "ready") != NULL) {
star297 1:71ed1afbf344 222 pc.printf("\n++++++++++ Starting Server ++++++++++\r\n");
star297 1:71ed1afbf344 223 strcpy(snd, "AT+CIPMUX=1\r\n"); // set multiple connections.
star297 1:71ed1afbf344 224 SendCMD();
star297 2:d4c6bc0f2dc4 225 timeout=500;getcount=10;
star297 2:d4c6bc0f2dc4 226 getreply();
star297 2:d4c6bc0f2dc4 227 strcpy(snd, "AT+CIPSERVER=1,90\r\n");
star297 2:d4c6bc0f2dc4 228 //sprintf(snd,"AT+CIPSERVER=1,%d\r\n", port);
star297 1:71ed1afbf344 229 SendCMD();
star297 2:d4c6bc0f2dc4 230 timeout=500;getcount=10;
star297 2:d4c6bc0f2dc4 231 getreply();
star297 1:71ed1afbf344 232 pc.printf("\n Getting Server IP \r\n");
star297 1:71ed1afbf344 233 strcpy(snd, "AT+CIFSR\r\n");
star297 2:d4c6bc0f2dc4 234 timeout=1000;getcount=50;
star297 1:71ed1afbf344 235 while(weberror==0){
star297 1:71ed1afbf344 236 SendCMD();getreply();
star297 1:71ed1afbf344 237 if (strstr(buf, "0.0.0.0") == NULL) {weberror=1;} // wait for valid IP
star297 1:71ed1afbf344 238 }
star297 1:71ed1afbf344 239 pc.printf("\n Enter WEB address in your browser \r\n\n");
star297 1:71ed1afbf344 240 buf[strlen(buf) - 8] = '\0';
star297 1:71ed1afbf344 241 char* IP = buf + 5;
star297 2:d4c6bc0f2dc4 242 sprintf(snd," http://%s:%d", IP, port);
star297 1:71ed1afbf344 243 pc.printf(snd);
star297 1:71ed1afbf344 244 while (esp.readable()){esp.getc();}
star297 1:71ed1afbf344 245 buflen=200;count=0;
star297 1:71ed1afbf344 246 memset(buf, '\0', sizeof(buf));
star297 1:71ed1afbf344 247 led2=0;wait(2);led2=1;
star297 1:71ed1afbf344 248 pc.printf("\n\n++++++++++ Ready ++++++++++\r\n\n");
star297 1:71ed1afbf344 249 esp.attach(&callback);
star297 0:e2a155f50119 250 }
star297 1:71ed1afbf344 251 else{
star297 1:71ed1afbf344 252 pc.printf("\n++++++++++ ESP8266 error, check power/connections ++++++++++\r\n");
star297 1:71ed1afbf344 253 while(1){}
star297 2:d4c6bc0f2dc4 254 }
star297 2:d4c6bc0f2dc4 255 t2.reset();t2.start();beep();
star297 0:e2a155f50119 256 }
star297 0:e2a155f50119 257 // ESP Command data send
star297 0:e2a155f50119 258 void SendCMD()
star297 0:e2a155f50119 259 {
star297 0:e2a155f50119 260 esp.printf("%s", snd);
star297 0:e2a155f50119 261 }
star297 0:e2a155f50119 262 // Large WEB buffer data send
star297 0:e2a155f50119 263 void SendWEB()
star297 0:e2a155f50119 264 {
star297 0:e2a155f50119 265 int i=0;
star297 0:e2a155f50119 266 if(esp.writeable()) {
star297 0:e2a155f50119 267 while(buf[i]!='\0') {esp.putc(buf[i]);i++;}
star297 0:e2a155f50119 268 }
star297 0:e2a155f50119 269 }
star297 0:e2a155f50119 270 // Get Cammand and ESP status replies
star297 0:e2a155f50119 271 void getreply()
star297 0:e2a155f50119 272 {
star297 0:e2a155f50119 273 memset(buf, '\0', sizeof(buf));
star297 2:d4c6bc0f2dc4 274 t1.reset(); t1.start();
star297 0:e2a155f50119 275 ended=0;count=0;
star297 2:d4c6bc0f2dc4 276 while(t1.read_ms()< timeout && count < getcount) {
star297 0:e2a155f50119 277 if(esp.readable()) {
star297 0:e2a155f50119 278 buf[count] = esp.getc();count++;
star297 0:e2a155f50119 279 }
star297 2:d4c6bc0f2dc4 280 }
star297 2:d4c6bc0f2dc4 281 t1.stop();
star297 0:e2a155f50119 282 }
star297 0:e2a155f50119 283 // Analog in example
star297 0:e2a155f50119 284 void getbattery()
star297 0:e2a155f50119 285 {
star297 0:e2a155f50119 286 AdcIn=BATin.read();
star297 2:d4c6bc0f2dc4 287 Ht = (AdcIn*3.328f*(R1+R2)/R2); // set the numeric to the exact MCU analog reference voltage for greater accuracy
star297 0:e2a155f50119 288 sprintf(Vcc,"%2.3f",Ht);
star297 0:e2a155f50119 289 }
star297 0:e2a155f50119 290 // Temperature example
star297 0:e2a155f50119 291 void gettemp()
star297 2:d4c6bc0f2dc4 292 {
star297 0:e2a155f50119 293 temperature=thermom.GetTemperature(); // comment this out if no sensor connected
star297 0:e2a155f50119 294 //temperature = 21.357; // include for dummy value
star297 0:e2a155f50119 295 sprintf(Temp,"%3.3f",temperature);
star297 0:e2a155f50119 296 }
star297 0:e2a155f50119 297 // Get RTC time
star297 0:e2a155f50119 298 void gettime()
star297 0:e2a155f50119 299 {
star297 0:e2a155f50119 300 time_t seconds = time(NULL);
star297 0:e2a155f50119 301 strftime(timebuf,50,"%H:%M:%S %a %d %b %y", localtime(&seconds));
star297 0:e2a155f50119 302 }
star297 0:e2a155f50119 303
star297 2:d4c6bc0f2dc4 304 void beep()
star297 2:d4c6bc0f2dc4 305 {
star297 2:d4c6bc0f2dc4 306 speaker.period(1.0/2000); // 2000hz period
star297 2:d4c6bc0f2dc4 307 speaker = 0.5; //50% duty cycle - max volume
star297 2:d4c6bc0f2dc4 308 wait_ms(60);
star297 2:d4c6bc0f2dc4 309 speaker=0.0; // turn off audio
star297 2:d4c6bc0f2dc4 310 }
star297 2:d4c6bc0f2dc4 311
star297 1:71ed1afbf344 312 void setRTC()
star297 1:71ed1afbf344 313 {
star297 1:71ed1afbf344 314 t.tm_sec = (0); // 0-59
star297 1:71ed1afbf344 315 t.tm_min = (minute); // 0-59
star297 1:71ed1afbf344 316 t.tm_hour = (hour); // 0-23
star297 1:71ed1afbf344 317 t.tm_mday = (dayofmonth); // 1-31
star297 1:71ed1afbf344 318 t.tm_mon = (month-1); // 0-11 "0" = Jan, -1 added for Mbed RCT clock format
star297 1:71ed1afbf344 319 t.tm_year = ((year)+100); // year since 1900, current DCF year + 100 + 1900 = correct year
star297 1:71ed1afbf344 320 set_time(mktime(&t)); // set RTC clock
star297 1:71ed1afbf344 321 }