Pin read from averaging mode: undefined behaviour

[mjmottram]

Firing in sequence mode and then reading the pin before the sequence is complete is currently allowed. This should not be possible; the pin diode readout may not actually be the averaged reading (undefined behaviour). Two updates are needed:

• Wait until sequence is complete and then read; if reading taken before end of sequence then an invalid flag should be applied to the pin reading.
• Character should be flushed to buffer following completed sequence (firing via "g" command), only then should pin average commands be sent.

[mnirkko]

I think this has been implemented. See "Waiting for sequence to finish..." type output when attempting to read the PIN values pre-emptively. Suggest closing.