[PD] Arduino+firmata - digital input (pull-up) - for Hans

[João Miguel Pais]

Hello Hans and list,

we're in the workshop with Sukandar in Berlin, and something strange just  
happened. My arduino isn't the newest, it has with the ATMEGA8 chip (the  
one we got in Zürich some time ago). I've put the latest firmata into it,  
and the analogue stuff worked quite well.


While doing some digital inputting (just simple switches) a few things  
happen:

- the inputs/outputs don't match: if the switch is connected in the input  
2, it comes out from 5 (the same to all other inputs, although I didn't  
mapped them). But consequently, if I switch the input 2 off, the output 5  
switches off.
This doesn't happen on other participants who have the newest arduino  
board.

- someone here mentioned that the arduino has its own pull-up resistors.  
but in the firmware they're switched off, and we found no possibility to  
switch it in the arduino-test patch. so we must build our own pull-up  
resistors in the circuit, outside.
is it possible with this firmata to activate the pull-up resistor in  
arduino from the pd patch? if not, do you think you're going to implement  
it? or could you tell just quickly how enable it?


Thanks,

João Miguel Pais


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