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by Saulverde
Tue Oct 02, 2012 11:25 pm
Forum: For sale
Topic: Relay card for GPIO
Replies: 12
Views: 13116

Re: Relay card for GPIO

That's all I was saying. Not everyone would know to search for 'FET'. If you had said what you did and then said a FET would work better then it would have led me down the rabbit hole of internet searching and I could have probably run across most of what you were talking about. Thanks for adding th...
by Saulverde
Tue Oct 02, 2012 7:47 pm
Forum: For sale
Topic: Relay card for GPIO
Replies: 12
Views: 13116

Re: Relay card for GPIO

A relay is an expensive, large and power hungry way to change between 3V and 5V. There are many articles in these forums on translating between 3V and 5V levels even bidirectionally. But you didn't give names, acronyms or links for any of them so I have no more information having read your post tha...
by Saulverde
Thu Sep 20, 2012 8:44 pm
Forum: Python
Topic: Adafruit Basic Resistor Sensor Reading on Raspberry Pi
Replies: 11
Views: 2004

Re: Adafruit Basic Resistor Sensor Reading on Raspberry Pi

Forgot the link and don't have an edit button for that last post.

http://code.google.com/p/raspberry-gpio-python/
by Saulverde
Thu Sep 20, 2012 8:00 pm
Forum: Python
Topic: Adafruit Basic Resistor Sensor Reading on Raspberry Pi
Replies: 11
Views: 2004

Re: Adafruit Basic Resistor Sensor Reading on Raspberry Pi

Thanks again. I changed the lines referenced to (GPIO.input(RCPin) == GPIO.LOW) and (GPIO.input(RCPin) == GPIO.HIGH) I also corrected an error in the loops where I had put RCpin instead of RCPin. My intention was to do basically the same thing the adafruit code was doing except sense each pin state ...
by Saulverde
Thu Sep 20, 2012 5:30 pm
Forum: Python
Topic: Adafruit Basic Resistor Sensor Reading on Raspberry Pi
Replies: 11
Views: 2004

Re: Adafruit Basic Resistor Sensor Reading on Raspberry Pi

So trying to be smart I was thinking if you used a gpio as the send pin then you could detect the state switch from high to low and from low to high. Thereby not switching a pin twice to get one reading. With that in mind I've spent the last few days trying to do a better job at understanding code t...
by Saulverde
Tue Sep 18, 2012 12:36 pm
Forum: Python
Topic: Adafruit Basic Resistor Sensor Reading on Raspberry Pi
Replies: 11
Views: 2004

Re: Adafruit Basic Resistor Sensor Reading on Raspberry Pi

I'm sorry, I should have included a link to the tutorial so it was more clear, or copied it correctly. With that said, hank you MattHawkinsUK. Your explanation was excellent and gave me a much better grasp of what the code was doing than the tutorial alone, which didn't take much since I had very li...
by Saulverde
Tue Sep 18, 2012 3:18 am
Forum: Python
Topic: Adafruit Basic Resistor Sensor Reading on Raspberry Pi
Replies: 11
Views: 2004

Adafruit Basic Resistor Sensor Reading on Raspberry Pi

I'm trying to run through some tutorials to get an idea of how to do some simple coding for the gpio pins on the Pi. I was wondering if I could get some help. Below is the code provided by Adafruit for one of their tutorials. Looking at the code I can see where they are reading from pin 18 but I don...
by Saulverde
Thu Sep 06, 2012 4:18 pm
Forum: Automation, sensing and robotics
Topic: Will An Ebay Relay Board work with the pi?
Replies: 53
Views: 15339

Re: Will An Ebay Relay Board work with the pi?

These are the relay boards I use. I can power the two relay board from the pi without any problem. I just used my led blink program to test the relays and they worked. I would think the 4 relay board will require its own supply. http://www.dealextreme.com/p/arduino-compatible-4-channel-relay-shield-...
by Saulverde
Wed Sep 05, 2012 3:40 pm
Forum: General discussion
Topic: USB Port Current Boost (solved)
Replies: 247
Views: 90006

Re: USB Port Current Boost (solved)

is there a downside to just laying a bridge of solder over the top of the polyfuses? I'm not that great at soldering and I find this much easier than trying to solder a small jumper in the space.

I could use a longer wire and make it easier but it looks more noticeably sloppy that way.
by Saulverde
Sat Aug 25, 2012 9:40 pm
Forum: Python
Topic: WiringPython - WiringPi for Python
Replies: 205
Views: 66001

Re: WiringPython - WiringPi for Python

can someone post instructions on getting the old install?
by Saulverde
Fri Aug 24, 2012 4:23 pm
Forum: Python
Topic: WiringPython - WiringPi for Python
Replies: 205
Views: 66001

Re: WiringPython - WiringPi for Python

Wouldn't it be easier to help gadgetoid de-bug rather than starting from scratch?
by Saulverde
Fri Aug 24, 2012 3:08 pm
Forum: Python
Topic: WiringPython - WiringPi for Python
Replies: 205
Views: 66001

Re: WiringPython - WiringPi for Python

@GrumpyMike ~ I only ignored the error because I'm not smart enough to fix it yet. I actually was careful to read every line in the console looking for errors otherwise I wouldn't have seen it. I know Gadgetoid is reading this thread and working on some raspbian instructions. In this instance I felt...
by Saulverde
Thu Aug 23, 2012 11:08 pm
Forum: Python
Topic: WiringPython - WiringPi for Python
Replies: 205
Views: 66001

Re: WiringPython - WiringPi for Python

For Raspbian (wheezy) I used the instructions on this site. http://www.sirmc.net/view/9001/ There was one error package init file 'WiringPi/__init__.py' not found (or not a regular file) It was not a fatal error, the installation appeared to complete successfully. That said I have no means to actual...
by Saulverde
Fri Aug 17, 2012 2:12 pm
Forum: For sale
Topic: Relay card for GPIO
Replies: 12
Views: 13116

Re: Relay card for GPIO

by Saulverde
Fri Aug 17, 2012 12:20 am
Forum: For sale
Topic: Relay card for GPIO
Replies: 12
Views: 13116

Re: Relay card for GPIO

Does anyone have any thoughts on something like this?

http://arduino-direct.com/sunshop/index ... tail&p=328

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