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Adafruit_FONA.cpp
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Adafruit_FONA.cpp
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/***************************************************
This is a library for our Adafruit FONA Cellular Module
Designed specifically to work with the Adafruit FONA
----> http://www.adafruit.com/products/1946
----> http://www.adafruit.com/products/1963
These displays use TTL Serial to communicate, 2 pins are required to
interface
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
BSD license, all text above must be included in any redistribution
****************************************************/
// next line per http://postwarrior.com/arduino-ethershield-error-prog_char-does-not-name-a-type/
#include "Adafruit_FONA.h"
Adafruit_FONA::Adafruit_FONA(int8_t rst)
{
_rstpin = rst;
apn = F("FONAnet");
apnusername = 0;
apnpassword = 0;
mySerial = 0;
httpsredirect = false;
useragent = F("FONA");
ok_reply = F("OK");
}
uint8_t Adafruit_FONA::type(void) {
return _type;
}
boolean Adafruit_FONA::begin(Stream &port) {
mySerial = &port;
pinMode(_rstpin, OUTPUT);
digitalWrite(_rstpin, HIGH);
delay(10);
digitalWrite(_rstpin, LOW);
delay(100);
digitalWrite(_rstpin, HIGH);
DEBUG_PRINTLN(F("Attempting to open comm with ATs"));
// give 7 seconds to reboot
int16_t timeout = 7000;
while (timeout > 0) {
while (mySerial->available()) mySerial->read();
if (sendCheckReply(F("AT"), ok_reply))
break;
while (mySerial->available()) mySerial->read();
if (sendCheckReply(F("AT"), F("AT")))
break;
delay(500);
timeout-=500;
}
if (timeout <= 0) {
#ifdef ADAFRUIT_FONA_DEBUG
DEBUG_PRINTLN(F("Timeout: No response to AT... last ditch attempt."));
#endif
sendCheckReply(F("AT"), ok_reply);
delay(100);
sendCheckReply(F("AT"), ok_reply);
delay(100);
sendCheckReply(F("AT"), ok_reply);
delay(100);
}
// turn off Echo!
sendCheckReply(F("ATE0"), ok_reply);
delay(100);
if (! sendCheckReply(F("ATE0"), ok_reply)) {
return false;
}
// turn on hangupitude
sendCheckReply(F("AT+CVHU=0"), ok_reply);
delay(100);
flushInput();
DEBUG_PRINT(F("\t---> ")); DEBUG_PRINTLN("ATI");
mySerial->println("ATI");
readline(500, true);
DEBUG_PRINT (F("\t<--- ")); DEBUG_PRINTLN(replybuffer);
if (prog_char_strstr(replybuffer, (prog_char *)F("SIM808 R14")) != 0) {
_type = FONA808_V2;
} else if (prog_char_strstr(replybuffer, (prog_char *)F("SIM808 R13")) != 0) {
_type = FONA808_V1;
} else if (prog_char_strstr(replybuffer, (prog_char *)F("SIM800 R13")) != 0) {
_type = FONA800L;
} else if (prog_char_strstr(replybuffer, (prog_char *)F("SIMCOM_SIM5320A")) != 0) {
_type = FONA3G_A;
} else if (prog_char_strstr(replybuffer, (prog_char *)F("SIMCOM_SIM5320E")) != 0) {
_type = FONA3G_E;
}
if (_type == FONA800L) {
// determine if L or H
DEBUG_PRINT(F("\t---> ")); DEBUG_PRINTLN("AT+GMM");
mySerial->println("AT+GMM");
readline(500, true);
DEBUG_PRINT (F("\t<--- ")); DEBUG_PRINTLN(replybuffer);
if (prog_char_strstr(replybuffer, (prog_char *)F("SIM800H")) != 0) {
_type = FONA800H;
}
}
#if defined(FONA_PREF_SMS_STORAGE)
sendCheckReply(F("AT+CPMS=\"" FONA_PREF_SMS_STORAGE "\""), ok_reply);
#endif
return true;
}
/********* Serial port ********************************************/
boolean Adafruit_FONA::setBaudrate(uint16_t baud) {
return sendCheckReply(F("AT+IPREX="), baud, ok_reply);
}
/********* Real Time Clock ********************************************/
boolean Adafruit_FONA::readRTC(uint8_t *year, uint8_t *month, uint8_t *date, uint8_t *hr, uint8_t *min, uint8_t *sec) {
uint16_t v;
sendParseReply(F("AT+CCLK?"), F("+CCLK: "), &v, '/', 0);
*year = v;
DEBUG_PRINTLN(*year);
}
boolean Adafruit_FONA::enableRTC(uint8_t i) {
if (! sendCheckReply(F("AT+CLTS="), i, ok_reply))
return false;
return sendCheckReply(F("AT&W"), ok_reply);
}
/********* BATTERY & ADC ********************************************/
/* returns value in mV (uint16_t) */
boolean Adafruit_FONA::getBattVoltage(uint16_t *v) {
return sendParseReply(F("AT+CBC"), F("+CBC: "), v, ',', 2);
}
/* returns value in mV (uint16_t) */
boolean Adafruit_FONA_3G::getBattVoltage(uint16_t *v) {
float f;
boolean b = sendParseReply(F("AT+CBC"), F("+CBC: "), &f, ',', 2);
*v = f*1000;
return b;
}
/* returns the percentage charge of battery as reported by sim800 */
boolean Adafruit_FONA::getBattPercent(uint16_t *p) {
return sendParseReply(F("AT+CBC"), F("+CBC: "), p, ',', 1);
}
boolean Adafruit_FONA::getADCVoltage(uint16_t *v) {
return sendParseReply(F("AT+CADC?"), F("+CADC: 1,"), v);
}
/********* SIM ***********************************************************/
uint8_t Adafruit_FONA::unlockSIM(char *pin)
{
char sendbuff[14] = "AT+CPIN=";
sendbuff[8] = pin[0];
sendbuff[9] = pin[1];
sendbuff[10] = pin[2];
sendbuff[11] = pin[3];
sendbuff[12] = '\0';
return sendCheckReply(sendbuff, ok_reply);
}
uint8_t Adafruit_FONA::getSIMCCID(char *ccid) {
getReply(F("AT+CCID"));
// up to 28 chars for reply, 20 char total ccid
if (replybuffer[0] == '+') {
// fona 3g?
strncpy(ccid, replybuffer+8, 20);
} else {
// fona 800 or 800
strncpy(ccid, replybuffer, 20);
}
ccid[20] = 0;
readline(); // eat 'OK'
return strlen(ccid);
}
/********* IMEI **********************************************************/
uint8_t Adafruit_FONA::getIMEI(char *imei) {
getReply(F("AT+GSN"));
// up to 15 chars
strncpy(imei, replybuffer, 15);
imei[15] = 0;
readline(); // eat 'OK'
return strlen(imei);
}
/********* NETWORK *******************************************************/
uint8_t Adafruit_FONA::getNetworkStatus(void) {
uint16_t status;
if (! sendParseReply(F("AT+CREG?"), F("+CREG: "), &status, ',', 1)) return 0;
return status;
}
uint8_t Adafruit_FONA::getRSSI(void) {
uint16_t reply;
if (! sendParseReply(F("AT+CSQ"), F("+CSQ: "), &reply) ) return 0;
return reply;
}
/********* AUDIO *******************************************************/
boolean Adafruit_FONA::setAudio(uint8_t a) {
// 0 is headset, 1 is external audio
if (a > 1) return false;
return sendCheckReply(F("AT+CHFA="), a, ok_reply);
}
uint8_t Adafruit_FONA::getVolume(void) {
uint16_t reply;
if (! sendParseReply(F("AT+CLVL?"), F("+CLVL: "), &reply) ) return 0;
return reply;
}
boolean Adafruit_FONA::setVolume(uint8_t i) {
return sendCheckReply(F("AT+CLVL="), i, ok_reply);
}
boolean Adafruit_FONA::playDTMF(char dtmf) {
char str[4];
str[0] = '\"';
str[1] = dtmf;
str[2] = '\"';
str[3] = 0;
return sendCheckReply(F("AT+CLDTMF=3,"), str, ok_reply);
}
boolean Adafruit_FONA::playToolkitTone(uint8_t t, uint16_t len) {
return sendCheckReply(F("AT+STTONE=1,"), t, len, ok_reply);
}
boolean Adafruit_FONA_3G::playToolkitTone(uint8_t t, uint16_t len) {
if (! sendCheckReply(F("AT+CPTONE="), t, ok_reply))
return false;
delay(len);
return sendCheckReply(F("AT+CPTONE=0"), ok_reply);
}
boolean Adafruit_FONA::setMicVolume(uint8_t a, uint8_t level) {
// 0 is headset, 1 is external audio
if (a > 1) return false;
return sendCheckReply(F("AT+CMIC="), a, level, ok_reply);
}
/********* FM RADIO *******************************************************/
boolean Adafruit_FONA::FMradio(boolean onoff, uint8_t a) {
if (! onoff) {
return sendCheckReply(F("AT+FMCLOSE"), ok_reply);
}
// 0 is headset, 1 is external audio
if (a > 1) return false;
return sendCheckReply(F("AT+FMOPEN="), a, ok_reply);
}
boolean Adafruit_FONA::tuneFMradio(uint16_t station) {
// Fail if FM station is outside allowed range.
if ((station < 870) || (station > 1090))
return false;
return sendCheckReply(F("AT+FMFREQ="), station, ok_reply);
}
boolean Adafruit_FONA::setFMVolume(uint8_t i) {
// Fail if volume is outside allowed range (0-6).
if (i > 6) {
return false;
}
// Send FM volume command and verify response.
return sendCheckReply(F("AT+FMVOLUME="), i, ok_reply);
}
int8_t Adafruit_FONA::getFMVolume() {
uint16_t level;
if (! sendParseReply(F("AT+FMVOLUME?"), F("+FMVOLUME: "), &level) ) return 0;
return level;
}
int8_t Adafruit_FONA::getFMSignalLevel(uint16_t station) {
// Fail if FM station is outside allowed range.
if ((station < 875) || (station > 1080)) {
return -1;
}
// Send FM signal level query command.
// Note, need to explicitly send timeout so right overload is chosen.
getReply(F("AT+FMSIGNAL="), station, FONA_DEFAULT_TIMEOUT_MS);
// Check response starts with expected value.
char *p = prog_char_strstr(replybuffer, PSTR("+FMSIGNAL: "));
if (p == 0) return -1;
p+=11;
// Find second colon to get start of signal quality.
p = strchr(p, ':');
if (p == 0) return -1;
p+=1;
// Parse signal quality.
int8_t level = atoi(p);
readline(); // eat the "OK"
return level;
}
/********* PWM/BUZZER **************************************************/
boolean Adafruit_FONA::setPWM(uint16_t period, uint8_t duty) {
if (period > 2000) return false;
if (duty > 100) return false;
return sendCheckReply(F("AT+SPWM=0,"), period, duty, ok_reply);
}
/********* CALL PHONES **************************************************/
boolean Adafruit_FONA::callPhone(char *number) {
char sendbuff[35] = "ATD";
strncpy(sendbuff+3, number, min(30, strlen(number)));
uint8_t x = strlen(sendbuff);
sendbuff[x] = ';';
sendbuff[x+1] = 0;
//DEBUG_PRINTLN(sendbuff);
return sendCheckReply(sendbuff, ok_reply);
}
uint8_t Adafruit_FONA::getCallStatus(void) {
uint16_t phoneStatus;
if (! sendParseReply(F("AT+CPAS"), F("+CPAS: "), &phoneStatus))
return FONA_CALL_FAILED; // 1, since 0 is actually a known, good reply
return phoneStatus; // 0 ready, 2 unkown, 3 ringing, 4 call in progress
}
boolean Adafruit_FONA::hangUp(void) {
return sendCheckReply(F("ATH0"), ok_reply);
}
boolean Adafruit_FONA_3G::hangUp(void) {
getReply(F("ATH"));
return (prog_char_strstr(replybuffer, (prog_char *)F("VOICE CALL: END")) != 0);
}
boolean Adafruit_FONA::pickUp(void) {
return sendCheckReply(F("ATA"), ok_reply);
}
boolean Adafruit_FONA_3G::pickUp(void) {
return sendCheckReply(F("ATA"), F("VOICE CALL: BEGIN"));
}
void Adafruit_FONA::onIncomingCall() {
DEBUG_PRINT(F("> ")); DEBUG_PRINTLN(F("Incoming call..."));
Adafruit_FONA::_incomingCall = true;
}
boolean Adafruit_FONA::_incomingCall = false;
boolean Adafruit_FONA::callerIdNotification(boolean enable, uint8_t interrupt) {
if(enable){
attachInterrupt(interrupt, onIncomingCall, FALLING);
return sendCheckReply(F("AT+CLIP=1"), ok_reply);
}
detachInterrupt(interrupt);
return sendCheckReply(F("AT+CLIP=0"), ok_reply);
}
boolean Adafruit_FONA::incomingCallNumber(char* phonenum) {
//+CLIP: "<incoming phone number>",145,"",0,"",0
if(!Adafruit_FONA::_incomingCall)
return false;
readline();
while(!prog_char_strcmp(replybuffer, (prog_char*)F("RING")) == 0) {
flushInput();
readline();
}
readline(); //reads incoming phone number line
parseReply(F("+CLIP: \""), phonenum, '"');
DEBUG_PRINT(F("Phone Number: "));
DEBUG_PRINTLN(replybuffer);
Adafruit_FONA::_incomingCall = false;
return true;
}
/********* SMS **********************************************************/
uint8_t Adafruit_FONA::getSMSInterrupt(void) {
uint16_t reply;
if (! sendParseReply(F("AT+CFGRI?"), F("+CFGRI: "), &reply) ) return 0;
return reply;
}
boolean Adafruit_FONA::setSMSInterrupt(uint8_t i) {
return sendCheckReply(F("AT+CFGRI="), i, ok_reply);
}
int8_t Adafruit_FONA::getNumSMS(void) {
uint16_t numsms;
// get into text mode
if (! sendCheckReply(F("AT+CMGF=1"), ok_reply)) return -1;
// ask how many sms are stored
if (sendParseReply(F("AT+CPMS?"), F("\"SM\","), &numsms))
return numsms;
if (sendParseReply(F("AT+CPMS?"), F("\"SM_P\","), &numsms))
return numsms;
return -1;
}
// Reading SMS's is a bit involved so we don't use helpers that may cause delays or debug
// printouts!
boolean Adafruit_FONA::readSMS(uint8_t i, char *smsbuff,
uint16_t maxlen, uint16_t *readlen) {
// text mode
if (! sendCheckReply(F("AT+CMGF=1"), ok_reply)) return false;
// show all text mode parameters
if (! sendCheckReply(F("AT+CSDH=1"), ok_reply)) return false;
// parse out the SMS len
uint16_t thesmslen = 0;
DEBUG_PRINT(F("AT+CMGR="));
DEBUG_PRINTLN(i);
//getReply(F("AT+CMGR="), i, 1000); // do not print debug!
mySerial->print(F("AT+CMGR="));
mySerial->println(i);
readline(1000); // timeout
//DEBUG_PRINT(F("Reply: ")); DEBUG_PRINTLN(replybuffer);
// parse it out...
DEBUG_PRINTLN(replybuffer);
if (! parseReply(F("+CMGR:"), &thesmslen, ',', 11)) {
*readlen = 0;
return false;
}
readRaw(thesmslen);
flushInput();
uint16_t thelen = min(maxlen, strlen(replybuffer));
strncpy(smsbuff, replybuffer, thelen);
smsbuff[thelen] = 0; // end the string
DEBUG_PRINTLN(replybuffer);
*readlen = thelen;
return true;
}
// Retrieve the sender of the specified SMS message and copy it as a string to
// the sender buffer. Up to senderlen characters of the sender will be copied
// and a null terminator will be added if less than senderlen charactesr are
// copied to the result. Returns true if a result was successfully retrieved,
// otherwise false.
boolean Adafruit_FONA::getSMSSender(uint8_t i, char *sender, int senderlen) {
// Ensure text mode and all text mode parameters are sent.
if (! sendCheckReply(F("AT+CMGF=1"), ok_reply)) return false;
if (! sendCheckReply(F("AT+CSDH=1"), ok_reply)) return false;
DEBUG_PRINT(F("AT+CMGR="));
DEBUG_PRINTLN(i);
// Send command to retrieve SMS message and parse a line of response.
mySerial->print(F("AT+CMGR="));
mySerial->println(i);
readline(1000);
DEBUG_PRINTLN(replybuffer);
// Parse the second field in the response.
boolean result = parseReplyQuoted(F("+CMGR:"), sender, senderlen, ',', 1);
// Drop any remaining data from the response.
flushInput();
return result;
}
boolean Adafruit_FONA::sendSMS(char *smsaddr, char *smsmsg) {
if (! sendCheckReply(F("AT+CMGF=1"), ok_reply)) return false;
char sendcmd[30] = "AT+CMGS=\"";
strncpy(sendcmd+9, smsaddr, 30-9-2); // 9 bytes beginning, 2 bytes for close quote + null
sendcmd[strlen(sendcmd)] = '\"';
if (! sendCheckReply(sendcmd, F("> "))) return false;
DEBUG_PRINT(F("> ")); DEBUG_PRINTLN(smsmsg);
mySerial->println(smsmsg);
mySerial->println();
mySerial->write(0x1A);
DEBUG_PRINTLN("^Z");
if ( (_type == FONA3G_A) || (_type == FONA3G_E) ) {
// Eat two sets of CRLF
readline(200);
//DEBUG_PRINT("Line 1: "); DEBUG_PRINTLN(strlen(replybuffer));
readline(200);
//DEBUG_PRINT("Line 2: "); DEBUG_PRINTLN(strlen(replybuffer));
}
readline(10000); // read the +CMGS reply, wait up to 10 seconds!!!
//DEBUG_PRINT("Line 3: "); DEBUG_PRINTLN(strlen(replybuffer));
if (strstr(replybuffer, "+CMGS") == 0) {
return false;
}
readline(1000); // read OK
//DEBUG_PRINT("* "); DEBUG_PRINTLN(replybuffer);
if (strcmp(replybuffer, "OK") != 0) {
return false;
}
return true;
}
boolean Adafruit_FONA::deleteSMS(uint8_t i) {
if (! sendCheckReply(F("AT+CMGF=1"), ok_reply)) return false;
// read an sms
char sendbuff[12] = "AT+CMGD=000";
sendbuff[8] = (i / 100) + '0';
i %= 100;
sendbuff[9] = (i / 10) + '0';
i %= 10;
sendbuff[10] = i + '0';
return sendCheckReply(sendbuff, ok_reply, 2000);
}
/********* USSD *********************************************************/
boolean Adafruit_FONA::sendUSSD(char *ussdmsg, char *ussdbuff, uint16_t maxlen, uint16_t *readlen) {
if (! sendCheckReply(F("AT+CUSD=1"), ok_reply)) return false;
char sendcmd[30] = "AT+CUSD=1,\"";
strncpy(sendcmd+11, ussdmsg, 30-11-2); // 11 bytes beginning, 2 bytes for close quote + null
sendcmd[strlen(sendcmd)] = '\"';
if (! sendCheckReply(sendcmd, ok_reply)) {
*readlen = 0;
return false;
} else {
readline(10000); // read the +CUSD reply, wait up to 10 seconds!!!
//DEBUG_PRINT("* "); DEBUG_PRINTLN(replybuffer);
char *p = prog_char_strstr(replybuffer, PSTR("+CUSD: "));
if (p == 0) {
*readlen = 0;
return false;
}
p+=7; //+CUSD
// Find " to get start of ussd message.
p = strchr(p, '\"');
if (p == 0) {
*readlen = 0;
return false;
}
p+=1; //"
// Find " to get end of ussd message.
char *strend = strchr(p, '\"');
uint16_t lentocopy = min(maxlen-1, strend - p);
strncpy(ussdbuff, p, lentocopy+1);
ussdbuff[lentocopy] = 0;
*readlen = lentocopy;
}
return true;
}
/********* TIME **********************************************************/
boolean Adafruit_FONA::enableNetworkTimeSync(boolean onoff) {
if (onoff) {
if (! sendCheckReply(F("AT+CLTS=1"), ok_reply))
return false;
} else {
if (! sendCheckReply(F("AT+CLTS=0"), ok_reply))
return false;
}
flushInput(); // eat any 'Unsolicted Result Code'
return true;
}
boolean Adafruit_FONA::enableNTPTimeSync(boolean onoff, FONAFlashStringPtr ntpserver) {
if (onoff) {
if (! sendCheckReply(F("AT+CNTPCID=1"), ok_reply))
return false;
mySerial->print(F("AT+CNTP=\""));
if (ntpserver != 0) {
mySerial->print(ntpserver);
} else {
mySerial->print(F("pool.ntp.org"));
}
mySerial->println(F("\",0"));
readline(FONA_DEFAULT_TIMEOUT_MS);
if (strcmp(replybuffer, "OK") != 0)
return false;
if (! sendCheckReply(F("AT+CNTP"), ok_reply, 10000))
return false;
uint16_t status;
readline(10000);
if (! parseReply(F("+CNTP:"), &status))
return false;
} else {
if (! sendCheckReply(F("AT+CNTPCID=0"), ok_reply))
return false;
}
return true;
}
boolean Adafruit_FONA::getTime(char *buff, uint16_t maxlen) {
getReply(F("AT+CCLK?"), (uint16_t) 10000);
if (strncmp(replybuffer, "+CCLK: ", 7) != 0)
return false;
char *p = replybuffer+7;
uint16_t lentocopy = min(maxlen-1, strlen(p));
strncpy(buff, p, lentocopy+1);
buff[lentocopy] = 0;
readline(); // eat OK
return true;
}
/********* GPS **********************************************************/
boolean Adafruit_FONA::enableGPS(boolean onoff) {
uint16_t state;
// first check if its already on or off
if (_type == FONA808_V2) {
if (! sendParseReply(F("AT+CGNSPWR?"), F("+CGNSPWR: "), &state) )
return false;
} else {
if (! sendParseReply(F("AT+CGPSPWR?"), F("+CGPSPWR: "), &state))
return false;
}
if (onoff && !state) {
if (_type == FONA808_V2) {
if (! sendCheckReply(F("AT+CGNSPWR=1"), ok_reply)) // try GNS command
return false;
} else {
if (! sendCheckReply(F("AT+CGPSPWR=1"), ok_reply))
return false;
}
} else if (!onoff && state) {
if (_type == FONA808_V2) {
if (! sendCheckReply(F("AT+CGNSPWR=0"), ok_reply)) // try GNS command
return false;
} else {
if (! sendCheckReply(F("AT+CGPSPWR=0"), ok_reply))
return false;
}
}
return true;
}
boolean Adafruit_FONA_3G::enableGPS(boolean onoff) {
uint16_t state;
// first check if its already on or off
if (! Adafruit_FONA::sendParseReply(F("AT+CGPS?"), F("+CGPS: "), &state) )
return false;
if (onoff && !state) {
if (! sendCheckReply(F("AT+CGPS=1"), ok_reply))
return false;
} else if (!onoff && state) {
if (! sendCheckReply(F("AT+CGPS=0"), ok_reply))
return false;
// this takes a little time
readline(2000); // eat '+CGPS: 0'
}
return true;
}
int8_t Adafruit_FONA::GPSstatus(void) {
if (_type == FONA808_V2) {
// 808 V2 uses GNS commands and doesn't have an explicit 2D/3D fix status.
// Instead just look for a fix and if found assume it's a 3D fix.
getReply(F("AT+CGNSINF"));
char *p = prog_char_strstr(replybuffer, (prog_char*)F("+CGNSINF: "));
if (p == 0) return -1;
p+=10;
readline(); // eat 'OK'
if (p[0] == '0') return 0; // GPS is not even on!
p+=2; // Skip to second value, fix status.
//DEBUG_PRINTLN(p);
// Assume if the fix status is '1' then we have a 3D fix, otherwise no fix.
if (p[0] == '1') return 3;
else return 1;
}
if (_type == FONA3G_A || _type == FONA3G_E) {
// FONA 3G doesn't have an explicit 2D/3D fix status.
// Instead just look for a fix and if found assume it's a 3D fix.
getReply(F("AT+CGPSINFO"));
char *p = prog_char_strstr(replybuffer, (prog_char*)F("+CGPSINFO:"));
if (p == 0) return -1;
if (p[10] != ',') return 3; // if you get anything, its 3D fix
return 0;
}
else {
// 808 V1 looks for specific 2D or 3D fix state.
getReply(F("AT+CGPSSTATUS?"));
char *p = prog_char_strstr(replybuffer, (prog_char*)F("SSTATUS: Location "));
if (p == 0) return -1;
p+=18;
readline(); // eat 'OK'
//DEBUG_PRINTLN(p);
if (p[0] == 'U') return 0;
if (p[0] == 'N') return 1;
if (p[0] == '2') return 2;
if (p[0] == '3') return 3;
}
// else
return 0;
}
uint8_t Adafruit_FONA::getGPS(uint8_t arg, char *buffer, uint8_t maxbuff) {
int32_t x = arg;
if ( (_type == FONA3G_A) || (_type == FONA3G_E) ) {
getReply(F("AT+CGPSINFO"));
} else if (_type == FONA808_V1) {
getReply(F("AT+CGPSINF="), x);
} else {
getReply(F("AT+CGNSINF"));
}
char *p = prog_char_strstr(replybuffer, (prog_char*)F("SINF"));
if (p == 0) {
buffer[0] = 0;
return 0;
}
p+=6;
uint8_t len = max(maxbuff-1, strlen(p));
strncpy(buffer, p, len);
buffer[len] = 0;
readline(); // eat 'OK'
return len;
}
boolean Adafruit_FONA::getGPS(float *lat, float *lon, float *speed_kph, float *heading, float *altitude) {
char gpsbuffer[120];
// we need at least a 2D fix
if (GPSstatus() < 2)
return false;
// grab the mode 2^5 gps csv from the sim808
uint8_t res_len = getGPS(32, gpsbuffer, 120);
// make sure we have a response
if (res_len == 0)
return false;
if (_type == FONA3G_A || _type == FONA3G_E) {
// Parse 3G respose
// +CGPSINFO:4043.000000,N,07400.000000,W,151015,203802.1,-12.0,0.0,0
// skip beginning
char *tok;
// grab the latitude
char *latp = strtok(gpsbuffer, ",");
if (! latp) return false;
// grab latitude direction
char *latdir = strtok(NULL, ",");
if (! latdir) return false;
// grab longitude
char *longp = strtok(NULL, ",");
if (! longp) return false;
// grab longitude direction
char *longdir = strtok(NULL, ",");
if (! longdir) return false;
// skip date & time
tok = strtok(NULL, ",");
tok = strtok(NULL, ",");
// only grab altitude if needed
if (altitude != NULL) {
// grab altitude
char *altp = strtok(NULL, ",");
if (! altp) return false;
*altitude = atof(altp);
}
// only grab speed if needed
if (speed_kph != NULL) {
// grab the speed in km/h
char *speedp = strtok(NULL, ",");
if (! speedp) return false;
*speed_kph = atof(speedp);
}
// only grab heading if needed
if (heading != NULL) {
// grab the speed in knots
char *coursep = strtok(NULL, ",");
if (! coursep) return false;
*heading = atof(coursep);
}
double latitude = atof(latp);
double longitude = atof(longp);
// convert latitude from minutes to decimal
float degrees = floor(latitude / 100);
double minutes = latitude - (100 * degrees);
minutes /= 60;
degrees += minutes;
// turn direction into + or -
if (latdir[0] == 'S') degrees *= -1;
*lat = degrees;
// convert longitude from minutes to decimal
degrees = floor(longitude / 100);
minutes = longitude - (100 * degrees);
minutes /= 60;
degrees += minutes;
// turn direction into + or -
if (longdir[0] == 'W') degrees *= -1;
*lon = degrees;
} else if (_type == FONA808_V2) {
// Parse 808 V2 response. See table 2-3 from here for format:
// http://www.adafruit.com/datasheets/SIM800%20Series_GNSS_Application%20Note%20V1.00.pdf
// skip GPS run status
char *tok = strtok(gpsbuffer, ",");
if (! tok) return false;
// skip fix status
tok = strtok(NULL, ",");
if (! tok) return false;
// skip date
tok = strtok(NULL, ",");
if (! tok) return false;
// grab the latitude
char *latp = strtok(NULL, ",");
if (! latp) return false;
// grab longitude
char *longp = strtok(NULL, ",");
if (! longp) return false;
*lat = atof(latp);
*lon = atof(longp);
// only grab altitude if needed
if (altitude != NULL) {
// grab altitude
char *altp = strtok(NULL, ",");
if (! altp) return false;
*altitude = atof(altp);
}
// only grab speed if needed
if (speed_kph != NULL) {
// grab the speed in km/h
char *speedp = strtok(NULL, ",");
if (! speedp) return false;
*speed_kph = atof(speedp);
}
// only grab heading if needed
if (heading != NULL) {
// grab the speed in knots
char *coursep = strtok(NULL, ",");
if (! coursep) return false;
*heading = atof(coursep);
}
}
else {
// Parse 808 V1 response.
// skip mode
char *tok = strtok(gpsbuffer, ",");
if (! tok) return false;
// skip date
tok = strtok(NULL, ",");