Simple Arduino script to set pins high, low, input, pull up, or analog/servo, clock out data, with timing, and read all or a single pin back via serial IO.

James Newton wrote 05/17/2017 at 23:05

3rd version:

- Change timing from millisecond to microsecond... yes, it can't really do command in 1 uS (47uS overhead, so 3D is 50uS) but this allows sub millisecond timing down to 50uS so that is quite useful. This required that all the internal variables become longs because 1 second is 1000000D. Unsigned because we don't do negative.

- Added ability to clock in data as well as out. Data read is a bit slower than write because of the time to transmit the character.

- Added I2C start and stop commands. e.g.

5,11(-__-_--_. ........ .)

starts with clock on pin 5 and data on 11, sends 10010110, gets ack, 8 bits data, ack, and stops. It returns the data as binary. It might be nice to return the data as a decimal value in addition to the binary, but I would have to use something to separate out acks and data. Maybe space?

-Multiple bug fixes. Space /really/ does nothing now. Clock pulses go up /after/ the data.

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Arya wrote 05/16/2017 at 20:53

Why not Firmata?

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James Newton wrote 05/16/2017 at 22:25

"Not a replacement for Firmata as this is intended to be used by a human directly via serial monitor or terminal, not from a program"

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Arya wrote 05/16/2017 at 22:27

Oh, understood, makes sense =)

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