firmata

ConfigurableFirmata module functions

I'm writing custom modules for ConfigurableFirmata, I see libraries are using callbacks such as:

void Class::handleCapability(byte pin);
boolean Class::handlePinMode(byte pin, int mode);
...
boolean Class::handleSysex(byte command, byte argc, byte *argv);

Question is, I don't quite get why some of functions are boolean and when to return TRUE or FALSE (and what happens when you return TRUE or FALSE?).

Solution

  • Answer lays in FirmataExt.cpp. If extension returns FALSE, it just sends a string to firmata, for debugging purposes.