Fixes to the devcomuino sketch

Karol Krizkarequested to merge
kki2cdevcomuino into i2cdevcomuino

Improves the stability of the devcomuino sketch via the following:

  • Check that the termination character is received before processing the command to ensure all data has been received.
  • Correctly end the received data with \0 to turn it into a c-string.
  • Remove the delay at the end of loop. This blocked the microprocessor.
  • The termination character is set to \r\n, for consistency with the Serial output.
  • cmdI2Cwrite now sends all bytes, instead of just one
  • Switch SerialCom to use blocking communications.
  • Remove debug output for help with parsing the output.

There is also an example called devcomuino_example that demonstrates how to use this sketch.

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