ESP8266::ESP8266(PinName tx, PinName rx, PinName reset, const char *ssid, const char *phrase, uint32_t baud) :
wifi(tx, rx), reset_pin(reset), buf_ESP8266(ESP_MBUFFE_MAX)
{
INFO("Initializing ESP8266 object");
memset(&state, 0, sizeof(state));
strcpy(this->ssid, ssid);
strcpy(this->phrase, phrase);
inst = this;
attach_rx(false);
wifi.baud(baud); // initial baud rate of the ESP8266
state.associated = false;
state.cmdMode = false;
}
Wifly::Wifly( PinName tx, PinName rx, PinName _reset, PinName tcp_status, const char * ssid, const char * phrase, Security sec):
wifi(tx, rx), reset_pin(_reset), tcp_status(tcp_status), buf_wifly(512)
{
this->wpa = wpa;
security = sec;
// change all ' ' in '$' in the ssid and the passphrase
strcpy(this->ssid, ssid);
for (int i = 0; i < strlen(ssid); i++) {
if (this->ssid[i] == ' ')
this->ssid[i] = '$';
}
strcpy(this->phrase, phrase);
for (int i = 0; i < strlen(phrase); i++) {
if (this->phrase[i] == ' ')
this->phrase[i] = '$';
}
inst = this;
attach_rx(false);
cmd_mode = false;
}
int Wifly::send(const char * str, int len, const char * ACK, char * res, int timeout)
{
char read;
size_t found = string::npos;
string checking;
Timer tmr;
int result = 0;
DBG("will send: %s\r\n",str);
attach_rx(false);
//We flush the buffer
while (wifi.readable())
wifi.getc();
if (!ACK || !strcmp(ACK, "NO")) {
for (int i = 0; i < len; i++)
result = (putc(str[i]) == str[i]) ? result + 1 : result;
} else {
//We flush the buffer
while (wifi.readable())
wifi.getc();
tmr.start();
for (int i = 0; i < len; i++)
result = (putc(str[i]) == str[i]) ? result + 1 : result;
while (1) {
if (tmr.read_ms() > timeout) {
//We flush the buffer
while (wifi.readable())
wifi.getc();
DBG("check: %s\r\n", checking.c_str());
attach_rx(true);
return -1;
} else if (wifi.readable()) {
read = wifi.getc();
if ( read != '\r' && read != '\n') {
checking += read;
found = checking.find(ACK);
if (found != string::npos) {
wait(0.01);
//We flush the buffer
while (wifi.readable())
wifi.getc();
break;
}
}
}
}
DBG("check: %s\r\n", checking.c_str());
attach_rx(true);
return result;
}
//the user wants the result from the command (ACK == NULL, res != NULL)
if ( res != NULL) {
int i = 0;
Timer timeout;
timeout.start();
tmr.reset();
while (1) {
if (timeout.read() > 2) {
if (i == 0) {
res = NULL;
break;
}
res[i] = '\0';
DBG("user str 1: %s\r\n", res);
break;
} else {
if (tmr.read_ms() > 300) {
res[i] = '\0';
DBG("user str: %s\r\n", res);
break;
}
if (wifi.readable()) {
tmr.start();
read = wifi.getc();
// we drop \r and \n
if ( read != '\r' && read != '\n') {
res[i++] = read;
}
}
}
}
DBG("user str: %s\r\n", res);
}
//We flush the buffer
while (wifi.readable())
wifi.getc();
attach_rx(true);
DBG("result: %d\r\n", result)
return result;
}
bool ESP8266::sendCommand(const char * cmd, const char * ACK, char * res, int timeout)
{
char read;
size_t found = string::npos;
string checking = "";
Timer tmr;
int result = 0;
DBG("sendCmd:\t %s",cmd);
attach_rx(true);
//We flush the buffer
while (readable())
getc();
if (!ACK || !strcmp(ACK, "NO")) {
for (int i = 0; i < strlen(cmd); i++) {
result = (putc(cmd[i]) == cmd[i]) ? result + 1 : result;
wait(0.005f); // prevents stuck recieve ready (?) need to let echoed character get read first
}
putc(13); //CR
wait(0.005f); // wait for echo
putc(10); //LF
} else {
//We flush the buffer
while (readable())
getc();
tmr.start();
for (int i = 0; i < strlen(cmd); i++) {
result = (putc(cmd[i]) == cmd[i]) ? result + 1 : result;
wait(.005); // wait for echo
}
putc(13); //CR
wait(0.005f); // wait for echo
putc(10); //LF
while (1) {
if (tmr.read_ms() > timeout) {
//We flush the buffer
while (readable())
getc();
DBG("check:\t %s", checking.c_str());
attach_rx(true);
return -1;
} else if (readable()) {
read = getc();
//printf("%c",read); //debug echo
if ( read != '\r' && read != '\n') {
checking += read;
found = checking.find(ACK);
if (found != string::npos) {
wait(0.01f);
//We flush the buffer
while (readable())
read = getc();
//printf("%c",read); //debug echo
break;
}
}
}
}
DBG("check: %s", checking.c_str());
attach_rx(true);
return result;
}
//the user wants the result from the command (ACK == NULL, res != NULL)
if (res != NULL) {
int i = 0;
Timer timeout;
timeout.start();
tmr.reset();
while (1) {
if (timeout.read() > 2) {
if (i == 0) {
res = NULL;
break;
}
res[i] = '\0';
DBG("user str 1: %s", res);
break;
} else {
if (tmr.read_ms() > 300) {
res[i] = '\0';
DBG("user str: %s", res);
break;
}
if (readable()) {
tmr.start();
read = getc();
// we drop \r and \n
if ( read != '\r' && read != '\n') {
res[i++] = read;
}
}
}
}
DBG("user str: %s", res);
}
//We flush the buffer
while (readable())
getc();
attach_rx(true);
DBG("result: %d", result)
return result;
}
