[PD] firmata sporadic at enabling analog ins?

Hans-Christoph Steiner hans at eds.org
Sun Sep 21 12:29:36 CEST 2008

On Sep 19, 2008, at 1:25 AM, Spencer Russell wrote:

> I've got an arduino with 5 capacitive distance sensors plugged into  
> the analog ins. I just flashed the newest firmata-standard, and now  
> things aren't working as expected.

First question, did you use the version of Firmata included in  
Arduino 0012?  That is now the real release version.

> the first thing I do is connect to /dev/ttyUSB0, which works fine.  
> Then I send the messages
> [analogIns 0 1(

this enables analog input 0.

> [analogIns 1, 1(

Careful, the comma changes the meaning.  This disables analog input 1  
(i.e. [analogIns 1 0() then sends a [1 (  alone.


> etc...
> to the arduino object. The funny thing is that any given input only  
> seems to turn on about 1 in 4 times I send the message. Once it's  
> on PD receives the data like a champ. I tried adding delay between  
> connecting via serial and turning on the inputs, but it didn't seem  
> to help even when adding a 2 second delay after the connection, and  
> 500ms delay between turning on each input.
> thanks,
> spencer
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Access to computers should be unlimited and total.  - the hacker ethic

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