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Update NeoSWSerial.cpp in rxPin input mode and peek method #44

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Update NeoSWSerial.cpp in rxPin input mode and peek method #44

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13 changes: 12 additions & 1 deletion src/NeoSWSerial.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -135,7 +135,7 @@ void NeoSWSerial::listen()
if (listener)
listener->ignore();

pinMode(rxPin, INPUT);
pinMode(rxPin, INPUT_PULLUP);
rxBitMask = digitalPinToBitMask( rxPin );
rxPort = portInputRegister( digitalPinToPort( rxPin ) );

Expand Down Expand Up @@ -268,6 +268,17 @@ int NeoSWSerial::available()

//----------------------------------------------------------------------------

int NeoSWSerial::peek(void)
{
if (rxHead == rxTail) {
return -1;
} else {
return rxBuffer[rxTail];
}
} // peek

//----------------------------------------------------------------------------

int NeoSWSerial::read()
{
if (rxHead == rxTail) return -1;
Expand Down