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1  Using Arduino / Storage / Yun odd File output on: March 02, 2014, 12:23:53 pm
Hi all:

I am successfully able to save text to a file on an sd card, as verified by mounting the sd card on my computer. But when I try to read the file it outputs what seems to be the same string of numbers 111105101101105103. The text in the file is oieeig

Any ideas?

Thanks!
2  Using Arduino / General Electronics / Re: Would this circuit work? on: February 22, 2013, 12:46:56 pm
Thanks Lefty. Ill take a look at that. I have no intentions for using this project for any type of malicious attack or illegal conduct. its simply something I've been interested in and what better motivation to work on something I'm interested in than seniors project.
3  Using Arduino / General Electronics / Re: Would this circuit work? on: February 22, 2013, 11:48:31 am
I am aware of the ground at the antenna problem. My question is with the overall concept of the schematic.Is to broadcast frequencies across the entire bandwidth of the monolithic amplifier we bought. Another idea i had was to have a square/triangle wave feed into the mixer instead of the input antenna. I am not familiar enough with the output of the mixer but the idea is to block all frequencies. The professor seems to feel the input antenna would mostly pick up the signal from our own output antenna and not surrounding signals.
4  Using Arduino / General Electronics / Would this circuit work? on: February 22, 2013, 10:18:55 am
I am doing my senior project now and finally finished designing the circuit, but my professor told me that it wouldn't work but didn't say why, and I have spent a couple hours looking it over with no luck. Can someone tell me if this would work? And if not, why?
5  Development / Other Hardware Development / Re: Control DPDT button with Relay on: October 13, 2012, 11:02:05 am
I found that the switches are NC.
6  Development / Other Hardware Development / Re: Control DPDT button with Relay on: October 05, 2012, 09:10:03 pm
I did eventually test it today. And came to the conclusion that they are NC switches, with help from the netduino community and cyclegadget, I have removed the buttons from the board.Now I need to figure out how to connect them to my n+/arduino(I havent deceived which I'll use) via a reed relay. Any suggestions?
7  Development / Other Hardware Development / Re: Control DPDT button with Relay on: October 05, 2012, 05:43:09 pm
This is the board I am dealing with. Red are the dpdt buttons.




I am using the following image as a guide. Does this show a NC circuit? But either way, would I have to connect my multimeter to the terminals in the middle?


8  Development / Other Hardware Development / Re: Control DPDT button with Relay on: October 04, 2012, 04:58:10 pm
How do I check a dpdt switch? My multimeter doesn't have the continuity test.
9  Development / Other Hardware Development / Re: Control DPDT button with Relay on: October 01, 2012, 10:34:48 pm
I just reread our dialogue, I think there might be some confusion. The relay isn't DPDT; just the button is. Does this change anything?
10  Development / Other Hardware Development / Re: Control DPDT button with Relay on: September 17, 2012, 02:38:46 pm
Nah, I am overriding the climate buttons on my car. So having all those servos would be a pain. Any other work arounds?
11  Development / Other Hardware Development / Re: Control DPDT button with Relay on: September 17, 2012, 01:55:47 pm
Thanks for your reply. It makes sense, and thats what I had thought. Is there a way I can bypass the button with out a relay?, maybe just two output pins that are both high?
12  Development / Other Hardware Development / Control DPDT button with Relay on: September 17, 2012, 12:19:44 pm
How do I wire up a relay to control a DPDT button, I'm trying to bypass the actual button press and control it via software.

Thanks.
13  Using Arduino / General Electronics / Re: Control when current can flow on: January 27, 2011, 11:57:06 am
So I believe I have it..

14  Using Arduino / General Electronics / Re: Control when current can flow on: January 26, 2011, 06:48:18 pm
Ok, I think I fixed the design. https://files.me.com/john_rickman/kmmc6v password arduino.
15  Using Arduino / General Electronics / Re: Control when current can flow on: January 26, 2011, 05:03:46 pm
Here is the modified schematic https://files.me.com/john_rickman/kmmc6v password arduino, the transistor is there to act as a switch.
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