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FreematicsCell.cpp
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/*************************************************************************
* Freematics Hub Client implementations for various communication devices
* Distributed under BSD license
* Visit https://freematics.com for more information
* (C)2012-2019 Developed by Stanley Huang <stanley@freematics.com.au>
* Improved by Anthony Ford to add SIM7600 functionality
*************************************************************************/
#include "FreematicsCell.h"
#include "esp_system.h"
#include "driver/uart.h"
#include "soc/uart_struct.h"
// V. 1.5.5.0
int dumpLine(char* buffer, int len)
{
int bytesToDump = len >> 1;
for (int i = 0; i < len; i++) {
// find out first line end and discard the first line
if (buffer[i] == '\r' || buffer[i] == '\n') {
// go through all following \r or \n if any
while (++i < len && (buffer[i] == '\r' || buffer[i] == '\n'));
bytesToDump = i;
break;
}
}
memmove(buffer, buffer + bytesToDump, len - bytesToDump);
return bytesToDump;
}
bool FreematicsBee::xbBegin(unsigned long baudrate, int pinRx, int pinTx)
{
uart_config_t uart_config = {
.baud_rate = (int)baudrate,
.data_bits = UART_DATA_8_BITS,
.parity = UART_PARITY_DISABLE,
.stop_bits = UART_STOP_BITS_1,
.flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
.rx_flow_ctrl_thresh = 122,
};
#if VERBOSE_XBEE
Serial.print("Bee Rx:");
Serial.print(pinRx);
Serial.print(" Tx:");
Serial.println(pinTx);
#endif
//Configure UART parameters
uart_param_config(BEE_UART_NUM, &uart_config);
//Set UART pins
uart_set_pin(BEE_UART_NUM, pinTx, pinRx, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);
//Install UART driver
uart_driver_install(BEE_UART_NUM, UART_BUF_SIZE, 0, 0, NULL, 0);
#ifdef PIN_BEE_PWR
pinMode(PIN_BEE_PWR, OUTPUT);
digitalWrite(PIN_BEE_PWR, LOW);
#endif
return true;
}
void FreematicsBee::xbEnd()
{
uart_driver_delete(BEE_UART_NUM);
digitalWrite(PIN_BEE_PWR, LOW);
}
void FreematicsBee::xbWrite(const char* cmd)
{
uart_write_bytes(BEE_UART_NUM, cmd, strlen(cmd));
#if VERBOSE_XBEE
Serial.print("=== SENT@");
Serial.print(millis());
Serial.println(" ===");
Serial.println(cmd);
Serial.println("==================");
#endif
}
void FreematicsBee::xbWrite(const char* data, int len)
{
uart_write_bytes(BEE_UART_NUM, data, len);
}
int FreematicsBee::xbRead(char* buffer, int bufsize, unsigned int timeout)
{
int recv = 0;
uint32_t t = millis();
do {
uint8_t c;
int len = uart_read_bytes(BEE_UART_NUM, &c, 1, 0);
if (len == 1) {
if (c >= 0xA && c <= 0x7E) {
buffer[recv++] = c;
}
} else if (recv > 0) {
break;
}
} while (recv < bufsize && millis() - t < timeout);
return recv;
}
int FreematicsBee::xbReceive(char* buffer, int bufsize, unsigned int timeout, const char** expected, byte expectedCount)
{
int bytesRecv = 0;
uint32_t t = millis();
do {
if (bytesRecv >= bufsize - 16) {
bytesRecv -= dumpLine(buffer, bytesRecv);
}
int n = xbRead(buffer + bytesRecv, bufsize - bytesRecv - 1, 50);
if (n > 0) {
#if VERBOSE_XBEE
Serial.print("=== RECV@");
Serial.print(millis());
Serial.println(" ===");
buffer[bytesRecv + n] = 0;
Serial.print(buffer + bytesRecv);
Serial.println("==================");
#endif
bytesRecv += n;
buffer[bytesRecv] = 0;
for (byte i = 0; i < expectedCount; i++) {
// match expected string(s)
if (expected[i] && strstr(buffer, expected[i])) return i + 1;
}
} else if (n == -1) {
// an erroneous reading
#if VERBOSE_XBEE
Serial.print("RECV ERROR");
#endif
break;
}
} while (millis() - t < timeout);
buffer[bytesRecv] = 0;
return 0;
}
void FreematicsBee::xbPurge()
{
uart_flush(BEE_UART_NUM);
}
void FreematicsBee::xbTogglePower(int pinPowerKey)
{
#ifdef PIN_BEE_PWR
digitalWrite(pinPowerKey, HIGH);
delay(100);
#if VERBOSE_XBEE
Serial.println("xBee power pin set to low");
#endif
digitalWrite(pinPowerKey, LOW);
delay(1010);
#if VERBOSE_XBEE
Serial.println("xBee power pin set to high");
#endif
digitalWrite(pinPowerKey, HIGH);
#endif
delay(100);
digitalWrite(pinPowerKey, LOW);
}
String HTTPClient::genHeader(HTTP_METHOD method, const char* path, bool keepAlive, const char* payload, int payloadSize)
{
String header;
// generate a simplest HTTP header
header = method == METHOD_GET ? "GET " : "POST ";
header += path;
header += " HTTP/1.1\r\nConnection: ";
header += keepAlive ? "keep-alive" : "close";
header += "\r\nHost: ";
header += m_host;
if (method != METHOD_GET) {
header += "\r\nContent-length: ";
header += String(payloadSize);
}
header += "\r\n\r\n";
return header;
}
/*******************************************************************************
Implementation for SIM800 (SIM800 AT command-set)
*******************************************************************************/
bool ClientSIM800::begin()
{
for (byte n = 0; n < 10; n++) {
// try turning on module
xbTogglePower();
// discard any stale data
delay(2000);
xbPurge();
for (byte m = 0; m < 3; m++) {
if (sendCommand("AT\r")) {
return true;
}
}
}
return false;
}
void ClientSIM800::end()
{
sendCommand("AT+CPOWD=1\r");
}
bool ClientSIM800::setup(const char* apn, bool gps, unsigned int timeout)
{
uint32_t t = millis();
bool success = false;
sendCommand("ATE0\r");
do {
success = sendCommand("AT+CREG?\r", 3000, "+CREG: 0,1") != 0;
} while (!success && millis() - t < timeout);
if (!success) return false;
do {
success = sendCommand("AT+CGATT?\r", 3000, "+CGATT: 1");
} while (!success && millis() - t < timeout);
sprintf(m_buffer, "AT+CSTT=\"%s\"\r", apn);
if (!sendCommand(m_buffer)) {
return false;
}
sendCommand("AT+CIICR\r");
return success;
}
String ClientSIM800::getIP()
{
for (uint32_t t = millis(); millis() - t < 60000; ) {
if (sendCommand("AT+CIFSR\r", 3000, ".")) {
char *p;
for (p = m_buffer; *p && !isdigit(*p); p++);
char *q = strchr(p, '\r');
if (q) *q = 0;
return p;
}
}
return "";
}
int ClientSIM800::getSignal()
{
if (sendCommand("AT+CSQ\r", 500)) {
char *p = strchr(m_buffer, ':');
if (p) {
int csq = atoi(p + 2);
if (csq == 0)
return -115;
else if (csq == 1)
return -111;
else if (csq != 99)
return csq * 2 - 114;
}
}
return 0;
}
String ClientSIM800::getOperatorName()
{
// display operator name
if (sendCommand("AT+COPS?\r") == 1) {
char *p = strstr(m_buffer, ",\"");
if (p) {
p += 2;
char *s = strchr(p, '\"');
if (s) *s = 0;
return p;
}
}
return "";
}
bool ClientSIM800::checkSIM()
{
return (sendCommand("AT+CPIN?\r") && strstr(m_buffer, "READY"));
}
String ClientSIM800::queryIP(const char* host)
{
sprintf(m_buffer, "AT+CDNSGIP=\"%s\"\r", host);
if (sendCommand(m_buffer, 10000)) {
char *p = strstr(m_buffer, host);
if (p) {
p = strstr(p, ",\"");
if (p) {
char *ip = p + 2;
p = strchr(ip, '\"');
if (p) *p = 0;
return ip;
}
}
}
return "";
}
bool ClientSIM800::sendCommand(const char* cmd, unsigned int timeout, const char* expected)
{
if (cmd) {
xbWrite(cmd);
}
m_buffer[0] = 0;
byte ret = xbReceive(m_buffer, sizeof(m_buffer), timeout, &expected, 1);
if (ret) {
return true;
} else {
return false;
}
}
bool ClientSIM800::getLocation(NET_LOCATION* loc)
{
if (sendCommand("AT+CIPGSMLOC=1,1\r", 3000)) do {
char *p;
if (!(p = strchr(m_buffer, ':'))) break;
if (!(p = strchr(p, ','))) break;
loc->lng = atof(++p);
if (!(p = strchr(p, ','))) break;
loc->lat = atof(++p);
if (!(p = strchr(p, ','))) break;
loc->year = atoi(++p) - 2000;
if (!(p = strchr(p, '/'))) break;
loc->month = atoi(++p);
if (!(p = strchr(p, '/'))) break;
loc->day = atoi(++p);
if (!(p = strchr(p, ','))) break;
loc->hour = atoi(++p);
if (!(p = strchr(p, ':'))) break;
loc->minute = atoi(++p);
if (!(p = strchr(p, ':'))) break;
loc->second = atoi(++p);
return true;
} while(0);
return false;
}
bool UDPClientSIM800::open(const char* host, uint16_t port)
{
//sendCommand("AT+CLPORT=\"UDP\",8000\r");
sendCommand("AT+CIPSRIP=1\r");
//sendCommand("AT+CIPUDPMODE=1\r");
sprintf(m_buffer, "AT+CIPSTART=\"UDP\",\"%s\",\"%u\"\r", host, port);
return sendCommand(m_buffer, 3000);
}
void UDPClientSIM800::close()
{
sendCommand("AT+CIPCLOSE\r");
}
bool UDPClientSIM800::send(const char* data, unsigned int len)
{
sprintf(m_buffer, "AT+CIPSEND=%u\r", len);
if (sendCommand(m_buffer, 200, ">")) {
xbWrite(data, len);
xbWrite("\r", 1);
if (sendCommand(0, 5000, "\r\nSEND OK")) {
return true;
}
}
return false;
}
char* UDPClientSIM800::receive(int* pbytes, unsigned int timeout)
{
char *data = checkIncoming(pbytes);
if (data) return data;
if (sendCommand("AT+CIPUDPMODE?\r", timeout, "RECV FROM:")) {
return checkIncoming(pbytes);
}
return 0;
}
char* UDPClientSIM800::checkIncoming(int* pbytes)
{
char *p = strstr(m_buffer, "RECV FROM:");
if (p) {
*p = '-'; // mark this datagram as checked
p = strchr(p, '\n');
if (p) {
if (pbytes) *pbytes = strlen(p);
return p + 1;
}
}
return 0;
}
bool HTTPClientSIM800::open(const char* host, uint16_t port)
{
if (!host) {
close();
return sendCommand("AT+HTTPINIT\r");
}
m_host = host;
m_port = port;
m_state = HTTP_CONNECTED;
return true;
}
bool HTTPClientSIM800::send(HTTP_METHOD method, const char* path, bool keepAlive, const char* payload, int payloadSize)
{
sendCommand("AT+HTTPPARA = \"CID\",1\r");
sprintf(m_buffer, "AT+HTTPPARA=\"URL\",\"%s:%u%s\"\r", m_host.c_str(), m_port, path);
if (!sendCommand(m_buffer)) {
} else if (method == METHOD_GET) {
if (sendCommand("AT+HTTPACTION=0\r", HTTP_CONN_TIMEOUT)) {
m_state = HTTP_SENT;
return true;
}
} else {
sprintf(m_buffer, "AT+HTTPDATA=%u,10000\r", payloadSize);
if (sendCommand(m_buffer)) {
if (sendCommand("AT+HTTPACTION=1\r", HTTP_CONN_TIMEOUT))
m_state = HTTP_SENT;
return true;
}
}
m_state = HTTP_ERROR;
Serial.println(m_buffer);
return false;
}
void HTTPClientSIM800::close()
{
sendCommand("AT+HTTPTERM\r");
m_state = HTTP_DISCONNECTED;
}
char* HTTPClientSIM800::receive(int* pbytes, unsigned int timeout)
{
char *p = strstr(m_buffer, "+HTTPACTION:");
if (!p) {
if (!sendCommand(0, timeout, "+HTTPACTION")) return 0;
}
if (sendCommand("AT+HTTPREAD\r", 1000)) {
Serial.println(m_buffer);
p = strstr(m_buffer, "+HTTPREAD: ");
if (p) {
p += 11;
int bytes = atoi(p);
p = strchr(p, '\n');
if (p++) {
p[bytes] = 0;
if (pbytes) *pbytes = bytes;
return p;
}
}
}
m_state = HTTP_ERROR;
return 0;
}
/*******************************************************************************
Implementation for SIM5360
*******************************************************************************/
bool ClientSIM5360::begin()
{
for (byte n = 0; n < 3; n++) {
// try turning on module
xbTogglePower();
delay(3000);
// discard any stale data
xbPurge();
for (byte m = 0; m < 5; m++) {
if (sendCommand("AT\r") && sendCommand("ATE0\r") && sendCommand("ATI\r")) {
// retrieve module info
char *p = strstr(m_buffer, "Model:");
if (p) p = strchr(p, '_');
if (p++) {
int i = 0;
while (i < sizeof(m_model) - 1 && p[i] && p[i] != '\r' && p[i] != '\n') {
m_model[i] = p[i];
i++;
}
m_model[i] = 0;
}
p = strstr(m_buffer, "IMEI:");
if (p) strncpy(IMEI, p + 6, sizeof(IMEI) - 1);
return true;
}
}
}
return false;
}
void ClientSIM5360::end()
{
setGPS(false);
sendCommand("AT+CPOF\r");
}
bool ClientSIM5360::setup(const char* apn, unsigned int timeout)
{
uint32_t t = millis();
bool success = false;
//sendCommand("AT+CNMP=13\r"); // GSM only
//sendCommand("AT+CNMP=14\r"); // WCDMA only
do {
do {
success = sendCommand("AT+CPSI?\r", 1000, "Online");
if (strstr(m_buffer, "Off")) {
success = false;
break;
}
if (success) {
if (!strstr(m_buffer, "NO SERVICE"))
break;
success = false;
}
} while (millis() - t < timeout);
if (!success) break;
success = false;
do {
if (sendCommand("AT+CREG?\r", 1000, "+CREG: 0,")) {
char *p = strstr(m_buffer, "+CREG: 0,");
success = (p && (*(p + 9) == '1' || *(p + 9) == '5'));
}
} while (!success && millis() - t < timeout);
if (!success) break;
success = false;
do {
if (sendCommand("AT+CGREG?\r",1000, "+CGREG: 0,")) {
char *p = strstr(m_buffer, "+CGREG: 0,");
success = (p && (*(p + 10) == '1' || *(p + 10) == '5'));
}
} while (!success && millis() - t < timeout);
if (!success) break;
if (apn && *apn) {
sprintf(m_buffer, "AT+CGSOCKCONT=1,\"IP\",\"%s\"\r", apn);
sendCommand(m_buffer);
}
if (!success) break;
//sendCommand("AT+CSOCKAUTH=1,1,\"APN_PASSWORD\",\"APN_USERNAME\"\r");
sendCommand("AT+CSOCKSETPN=1\r");
sendCommand("AT+CIPMODE=0\r");
sendCommand("AT+NETOPEN\r");
} while(0);
if (!success) Serial.println(m_buffer);
return success;
}
bool ClientSIM5360::setGPS(bool on)
{
if (on) {
sendCommand("AT+CVAUXV=61\r");
sendCommand("AT+CVAUXS=1\r");
for (byte n = 0; n < 3; n++) {
if ((sendCommand("AT+CGPS=1,1\r") && sendCommand("AT+CGPSINFO=1\r")) || sendCommand("AT+CGPS?\r", 100, "+CGPS: 1")) {
if (!m_gps) {
m_gps = new GPS_DATA;
memset(m_gps, 0, sizeof(GPS_DATA));
}
return true;
}
sendCommand("AT+CGPS=0\r");
}
return false;
} else {
sendCommand("AT+CVAUXS=0\r");
sendCommand("AT+CGPS=0\r");
if (m_gps) {
delete m_gps;
m_gps = 0;
}
return true;
}
}
String ClientSIM5360::getIP()
{
uint32_t t = millis();
do {
if (sendCommand("AT+IPADDR\r", 3000, "\r\nOK\r\n")) {
char *p = strstr(m_buffer, "+IPADDR:");
if (p) {
char *ip = p + 9;
if (*ip != '0') {
char *q = strchr(ip, '\r');
if (q) *q = 0;
return ip;
}
}
}
delay(500);
} while (millis() - t < 15000);
return "";
}
int ClientSIM5360::getSignal()
{
if (sendCommand("AT+CSQ\r", 1000, "OK")) {
char *p = strchr(m_buffer, ':');
if (p) {
int csq = atoi(p + 2);
if (csq != 101) {
return csq * 2 - 113;
}
}
}
return 0;
}
String ClientSIM5360::getSystemMode()
{
if (sendCommand("AT+CPSI?\r")) {
char *p = strstr(m_buffer, "+CPSI: ");
if (p) {
p += 7;
char *s = strchr(p, ',');
if (s) *s = 0;
return p;
}
}
return "";
}
String ClientSIM5360::getOperatorName()
{
if (sendCommand("AT+COPS?\r")) {
char *p = strstr(m_buffer, ",\"");
if (p) {
p += 2;
char *s = strchr(p, '\"');
if (s) *s = 0;
return p;
}
}
return "";
}
String ClientSIM5360::getAvailableOperators()
{
if (sendCommand("AT+COPS=?\r", 5000)) {
/*char *p = strstr(m_buffer, ",\"");
if (p) {
p += 2;
char *s = strchr(p, '\"');
if (s) *s = 0;
return p;
}*/
char *p = strstr(m_buffer, "+COPS: ");
if (p) {
p += 7;
return p;
}
} else if (strstr(m_buffer, "ERROR")) {
return "ERROR";
}
return "";
}
bool ClientSIM5360::setVerizon()
{
bool r = sendCommand("AT+COPS=4,2,\"311480\",7\r", 180000, "OK");
return r;
}
bool ClientSIM5360::checkSIM()
{
bool success;
for (byte n = 0; n < 10 && !(success = sendCommand("AT+CPIN?\r", 500, ": READY")); n++);
return success;
}
String ClientSIM5360::queryIP(const char* host)
{
sprintf(m_buffer, "AT+CDNSGIP=\"%s\"\r", host);
if (sendCommand(m_buffer, 10000)) {
char *p = strstr(m_buffer, host);
if (p) {
p = strstr(p, ",\"");
if (p) {
char *ip = p + 2;
p = strchr(ip, '\"');
if (p) *p = 0;
return ip;
}
}
}
return "";
}
bool ClientSIM5360::sendCommand(const char* cmd, unsigned int timeout, const char* expected)
{
if (cmd) {
xbWrite(cmd);
}
m_buffer[0] = 0;
byte ret = xbReceive(m_buffer, sizeof(m_buffer), timeout, &expected, 1);
if (ret) {
return true;
} else {
return false;
}
}
float ClientSIM5360::parseDegree(const char* s)
{
char *p;
unsigned long left = atol(s);
unsigned long tenk_minutes = (left % 100UL) * 100000UL;
if ((p = strchr(s, '.')))
{
unsigned long mult = 10000;
while (isdigit(*++p))
{
tenk_minutes += mult * (*p - '0');
mult /= 10;
}
}
return (left / 100) + (float)tenk_minutes / 6 / 1000000;
}
void ClientSIM5360::checkGPS()
{
// check and parse GPS data
char *p;
if (m_gps && (p = strstr(m_buffer, "+CGPSINFO:"))) do {
if (!(p = strchr(p, ':'))) break;
if (*(++p) == ',') break;
m_gps->lat = parseDegree(p);
if (!(p = strchr(p, ','))) break;
if (*(++p) == 'S') m_gps->lat = -m_gps->lat;
if (!(p = strchr(p, ','))) break;
m_gps->lng = parseDegree(++p);
if (!(p = strchr(p, ','))) break;
if (*(++p) == 'W') m_gps->lng = -m_gps->lng;
if (!(p = strchr(p, ','))) break;
m_gps->date = atoi(++p);
if (!(p = strchr(p, ','))) break;
m_gps->time = atof(++p) * 100;
if (!(p = strchr(p, ','))) break;
m_gps->alt = atof(++p);
if (!(p = strchr(p, ','))) break;
m_gps->speed = atof(++p);
if (!(p = strchr(p, ','))) break;
m_gps->heading = atoi(++p);
m_gps->ts = millis();
} while (0);
}
GPS_DATA ClientSIM5360::getGPS()
{
// check and parse GPS data
char *p;
GPS_DATA rt_gps;
if (sendCommand("AT+CGPSINFO\r", 3000) && (p = strstr(m_buffer, "+CGPSINFO:"))) do {
Serial.println(p);
while (rt_gps.time == 0) {
if (!(p = strchr(p, ':'))) break;
if (*(++p) == ',') break;
rt_gps.lat = parseDegree(p);
if (!(p = strchr(p, ','))) break;
if (*(++p) == 'S') rt_gps.lat = -rt_gps.lat;
if (!(p = strchr(p, ','))) break;
rt_gps.lng = parseDegree(++p);
if (!(p = strchr(p, ','))) break;
if (*(++p) == 'W') rt_gps.lng = -rt_gps.lng;
if (!(p = strchr(p, ','))) break;
rt_gps.date = atoi(++p);
if (!(p = strchr(p, ','))) break;
rt_gps.time = atof(++p) * 100;
if (!(p = strchr(p, ','))) break;
rt_gps.alt = atof(++p);
if (!(p = strchr(p, ','))) break;
rt_gps.speed = atof(++p);
if (!(p = strchr(p, ','))) break;
rt_gps.heading = atoi(++p);
rt_gps.ts = millis();
}
if (sendCommand("AT+CGNSSINFO\r", 3000)) {
p = strstr(m_buffer, "+CGNSSINFO:");
p = strchr(p, ':');
uint8_t totalSat = 0;
/*
for (int i = 0; i < 3; i++) {
p = strchr(p, ',');
totalSat += atoi(++p);
}
*/
if (!(p = strchr(p, ','))) break;
rt_gps.gps_sat = atoi(++p);
if (!(p = strchr(p, ','))) break;
rt_gps.glonass_sat = atoi(++p);
if (!(p = strchr(p, ','))) break;
rt_gps.beidou_sat = atoi(++p);
totalSat += rt_gps.gps_sat;
totalSat += rt_gps.glonass_sat;
totalSat += rt_gps.beidou_sat;
rt_gps.sat = totalSat;
for (int i = 0; i < 10; i++) {
++p;
p = strchr(p, ',');
}
if (!strstr(p, ",,")) {
rt_gps.pe = atof(++p);
if (!(p = strchr(p, ','))) break;
rt_gps.he = atof(++p);
if (!(p = strchr(p, ','))) break;
rt_gps.ve = atof(++p);
}
}
} while (0);
return rt_gps;
}
GPS_DATA ClientSIM5360::getGSM()
{
// check and parse GPS data
char *p;
GPS_DATA rt_gps;
if (sendCommand("AT+CGACT=1\r", 3000, "OK") && Serial.println(m_buffer) > 0 && sendCommand("AT+CLBS=4\r", 3000) && (p = strstr(m_buffer, "+CLBS:"))) do {
if (!(p = strchr(p, ':'))) break;
if (*(++p) == ',') break;
rt_gps.stat = atoi(p + 2);
if (!(p = strchr(p, ','))) break;
rt_gps.lat = atof(++p);
if (!(p = strchr(p, ','))) break;
rt_gps.lng = atof(++p);
if (!(p = strchr(p, ','))) break;
rt_gps.pe = atof(++p);
if (!(p = strchr(p, ','))) break; // format date ddmmyy
rt_gps.date = atoi(++p) - 2000; // year
if (!(p = strchr(p, '/'))) break;
rt_gps.date += atoi(++p) * 100; // month
if (!(p = strchr(p, '/'))) break;
rt_gps.date += atoi(++p) * 10000; // day
if (!(p = strchr(p, ','))) break; // format time hhmmss
rt_gps.time = atof(++p) * 10000; // hour
if (!(p = strchr(p, ':'))) break;
rt_gps.time += atof(++p) * 100; // min
if (!(p = strchr(p, ':'))) break;
rt_gps.time += atof(++p); // sec
rt_gps.ts = millis();
sendCommand("AT+CNETSTOP\r", 3000);
return rt_gps;
} while (0);
Serial.println("END");
Serial.println(m_buffer);
}
bool UDPClientSIM5360::open(const char* host, uint16_t port)
{
sendCommand("AT+NETOPEN\r");
if (host) {
udpIP = queryIP(host);
if (!udpIP.length()) {
udpIP = host;
}
udpPort = port;
}
sprintf(m_buffer, "AT+CIPOPEN=0,\"UDP\",\"%s\",%u,8000\r", udpIP.c_str(), udpPort);
if (!sendCommand(m_buffer, 3000)) {
close();
Serial.println(m_buffer);
return false;
}
return true;
}
void UDPClientSIM5360::close()
{
sendCommand("AT+CIPCLOSE=0\r");
sendCommand("AT+NETCLOSE\r");
}
bool UDPClientSIM5360::send(const char* data, unsigned int len)
{
int n = sprintf(m_buffer, "AT+CIPSEND=0,%u,\"%s\",%u\r", len, udpIP.c_str(), udpPort);
xbWrite(m_buffer, n);
delay(10);
xbWrite(data, len);
if (sendCommand(0, 500)) return true;
return false;
}
char* UDPClientSIM5360::receive(int* pbytes, unsigned int timeout)
{
char *data = checkIncoming(pbytes);
if (data) return data;
if (sendCommand(0, timeout, "+IPD")) {
return checkIncoming(pbytes);
}
return 0;
}
char* UDPClientSIM5360::checkIncoming(int* pbytes)
{
checkGPS();
char *p = strstr(m_buffer, "+IPD");
if (p) {
*p = '-'; // mark this datagram as checked
int len = atoi(p + 4);
if (pbytes) *pbytes = len;
p = strchr(p, '\n');
if (p) {
if (strlen(++p) > len) *(p + len) = 0;
return p;
}
}
return 0;
}
bool HTTPClientSIM5360::open(const char* host, uint16_t port)
{
if (!host) {
close();
for (int i = 0; i < 30; i++) {
sendCommand("AT+CHTTPSSTOP\r");
if (sendCommand("AT+CHTTPSSTART\r")) {
return true;
}
}
return false;
}
sprintf(m_buffer, "AT+CHTTPSOPSE=\"%s\",%u,%u\r", host, port, port == 443 ? 2: 1);
if (sendCommand(m_buffer, HTTP_CONN_TIMEOUT)) {
m_state = HTTP_CONNECTED;
m_host = host;
return true;
}
Serial.println(m_buffer);
m_state = HTTP_ERROR;
return false;
}
void HTTPClientSIM5360::close()
{
sendCommand("AT+CHTTPSCLSE\r", 1000, "+CHTTPSCLSE:");
m_state = HTTP_DISCONNECTED;
}
bool HTTPClientSIM5360::send(HTTP_METHOD method, const char* path, bool keepAlive, const char* payload, int payloadSize)
{
String header = genHeader(method, path, keepAlive, payload, payloadSize);
int len = header.length();
sprintf(m_buffer, "AT+CHTTPSSEND=%u\r", len + payloadSize);
if (!sendCommand(m_buffer, 100, ">")) {
m_state = HTTP_DISCONNECTED;
return false;
}
// send HTTP header
xbWrite(header.c_str());
// send POST payload if any
if (method == METHOD_POST && payload) xbWrite(payload);
if (sendCommand(0, 200)) {
m_state = HTTP_SENT;
return true;
}
//Serial.println(m_buffer);
m_state = HTTP_ERROR;
return false;
}
char* HTTPClientSIM5360::receive(int* pbytes, unsigned int timeout)
{
// start receiving
int received = 0;
char* payload = 0;
// wait for RECV EVENT
if (!sendCommand(0, timeout, "\r\n+CHTTPS: RECV EVENT")) {
checkGPS();
return 0;
}
checkGPS();
/*
+CHTTPSRECV:XX\r\n
[XX bytes from server]\r\n
+CHTTPSRECV: 0\r\n
*/
// TODO: implement for multiple chunks of data
// only deals with first chunk now
sprintf(m_buffer, "AT+CHTTPSRECV=%u\r", sizeof(m_buffer) - 36);
if (sendCommand(m_buffer, timeout, "\r\n+CHTTPSRECV: 0")) {
char *p = strstr(m_buffer, "\r\n+CHTTPSRECV: DATA");
if (p) {
if ((p = strchr(p, ','))) {
received = atoi(p + 1);
char *q = strchr(p, '\n');
payload = q ? (q + 1) : p;
if (m_buffer + sizeof(m_buffer) - payload > received) {
payload[received] = 0;
}
}
}