[PD] GPIO into RPi

Julian Brooks jbeezez at gmail.com
Thu Mar 28 12:58:00 CET 2013


Hey Alex,

Many thanks for the python to Pd tutorial.

Could you share how you setup the GPIO pins to send and receive into python
please?  There is, in some ways, too many ways to do it through trawling
the web and I would like to hear from someone who also shares the goal of
getting the data eventually into Pd.

Cheers,

Julian



---------- Forwarded message ----------
From: Alexandre Saunier <saunier.alexandre at yahoo.com>
Date: 12 March 2013 18:19
Subject: Re: [PD] Ultrasonic Range Finder
To: Julian Brooks <jbeezez at gmail.com>
Cc: PD List <pd-list at iem.at>


Hi Julian,

The WRM1 seems to work the same way as the ones I know. I'd be interested
to know how it reacts and what you do with it!

My git hub is alx-s.
I've just added athe RPi_tutorials repo (
https://github.com/alx-s/RPi_tutorials) with a first tutorial concerning
OSC bewtween python and pd.
Keep in mind I'm new to git and I write the tutorials as I work. If you
spot any mistake, have, suggestion or have anything to add, ..., please
tell me!
That's all I've written for today but others will come by the end of the
week (GPIO, using Maxbotix...). Good luck with it ;)

Have fun,
Alex




  ------------------------------
*De :* Julian Brooks <jbeezez at gmail.com>

I'm thinking this one
XL-MaxSonar - WRM1
look forward to checking tutorials.  What's your github address?

Cheers,

Julian


On 12 March 2013 14:35, Alexandre Saunier <saunier.alexandre at yahoo.com>wrote:

'Power filters' are simple RC filters you can solder directly on the
sensor, they help eliminating electric noise. Since the analog output of
the sensor depends on the voltage with which it is fed, the cleaner the
supply voltage, the better the analog output.
I don't know which sensor you're gonna us, but assuming it works like the
MB1000 or MB1200, you will find a lot of useful tips inside the datasheet
and in the tutorial page.

I'll start cleaning up my mess and a few short tutorials should be on my
github by this evening.

Best,
Alex


  ------------------------------
*De :* Julian Brooks <jbeezez at gmail.com>
**

Hi Alex,

Many thanks for the info.

What are 'power filters'?

Yes on RPi, so tutorials would be very helpful.

Best wishes,

Julian



On 12 March 2013 13:32, Alexandre Saunier <saunier.alexandre at yahoo.com>wrote:

Hi Julian,

As for the URF, I can't give you any infos but I've been using Maxbotix's
indoor sensors a few times.

One thing you really want to take into acount is the fact that sensors
interract with each others, you therefore need to chain them properly.
You might want to take a look at power filters too.
Maxbotix's tutorial page has been quite useful to me so far.

As to get the infos to pd, I've been using these sensors with a raspberry
pi.
My option has been to collect the data from the RPi's GPIO using python and
then send them to pd using OSC.
I'm starting to write small tutorials explaining what I've been through, if
you use the RPi too I'd be happy to point them to you.

Have fun,
Alex


  ------------------------------
*De :* Julian Brooks <jbeezez at gmail.com>
*À :* PD List <pd-list at iem.at>
*Envoyé le :* Mardi 12 mars 2013 13h58
*Objet :* [PD] Ultrasonic Range Finder

Hi,

I'm after some advice:

For an installation piece I'd like to do I'm investigating range finder
sensors (for outdoors).

Has anyone experience of the Maxbotic URF's and any tips they'd like to
share for getting the data into Pd?

Cheers,

Julian

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