Merge pull request itead#6 from muesliman/master

added '\0' fix on recvString methods

Author: Architecting

ESP8266.cpp

@@ -381,6 +381,7 @@ String ESP8266::recvString(String target, uint32_t timeout)
  while (millis() - start < timeout) {
  while(m_puart->available() > 0) {
  a = m_puart->read();
+if(a == '\0') continue;
  data += a;
  }
  if (data.indexOf(target) != -1) {
@@ -398,6 +399,7 @@ String ESP8266::recvString(String target1, String target2, uint32_t timeout)
  while (millis() - start < timeout) {
  while(m_puart->available() > 0) {
  a = m_puart->read();
+if(a == '\0') continue;
  data += a;
  }
  if (data.indexOf(target1) != -1) {
@@ -417,6 +419,7 @@ String ESP8266::recvString(String target1, String target2, String target3, uint3
  while (millis() - start < timeout) {
  while(m_puart->available() > 0) {
  a = m_puart->read();
+if(a == '\0') continue;
  data += a;
  }
  if (data.indexOf(target1) != -1) {