message: BLE: add $$$$ to force BT into command mode
diff: @@ -7,7 +7,11 @@ BLE::BLE(Stream *sp) : BC127(sp)
  int BLE::begin(void)
  {
  + //force into command mode (not needed if already in command mode...but historical Tympan units were preloaded to Data mode instead)
  + //myTympan.forceBTtoDataMode(false);
  + _serialPort->print("$"); delay(400); _serialPort->print("$$$");
  + //now do the usual setup stuff
  int ret_val;
  ret_val = restore();
  if (ret_val != BC127::SUCCESS) {
  @@ -33,6 +37,8 @@ int BLE::begin(void)
  size_t BLE::sendByte(char c)
  {
  + //Serial.print("BLE: sendBytle: "); Serial.println(c);
  +
  String s = String("").concat(c);
  if (send(s))
  return 1;
  @@ -42,6 +48,8 @@ size_t BLE::sendByte(char c)
  size_t BLE::sendString(const String &s)
  {
  + //Serial.print("BLE: sendString: "); Serial.println(s);
  +
  if (send(s))
  return s.length();
  