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Topic: FIRMATA sends digital input twice (Read 661 times) previous topic - next topic


Standard Firmata 2.0 included in Arduino-0015 sends digital pin message twice:
[font=Microsoft Sans Serif]void outputPort(byte portNumber, byte portValue)
 portValue = portValue &~ portStatus[portNumber];
 if(previousPINs[portNumber] != portValue) {
       Firmata.sendDigitalPort(portNumber, portValue);
       previousPINs[portNumber] = portValue;
      Firmata.sendDigitalPort(portNumber, portValue);
Why ? I didn't find anything like that in the protocol specification. Is it a bug ?


I have exactly the same question.

I cannot understand why standardfirmata executes sendDigitalPort twice.

And what seems even more odd, although sendDigitalPort is executed twice, it is only received once in Flash.

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