Changing Ardunio Uno D Pin 2,4 or 7 from 'Uno Read' to 'Uno Write'

Hi guys,

I have used up all my D Uno Write pins and I need one more. Is there a way of changing one of the Uno Read pins to write data instead? I'm guessing I will need to update the firefly firmata code as well as do something clever in Grasshopper

Thanks,

Sam

Replies to This Discussion

Permalink Reply by Andy Payne on October 19, 2017 at 10:08am

Hi Sam,

Yes, you would have to change the Firefly Firmata. In addition, you would probably need to use the Generic Serial Write to send the data over to the board (rather than using the Uno Write). The Firmata explains the logic behind what's being sent over, but in essence it's a string of comma separated values (one for each pin). So, you would just have to create a concatenated string and feed that into the Generic Serial Write component. Hopefully that makes sense. Cheers.

Permalink Reply by Sam Clagett on October 19, 2017 at 10:53am

Thanks for the reply! This seems to make sense. How would I find out which which comma separated value I plug in the serial write component corresponds to which Pin? I don't really understand the 'functions' part of the firmata.

Thanks,

Sam

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