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1  Using Arduino / Programming Questions / Re: Vehicle security system on: July 27, 2014, 05:49:59 pm
Disable the vehicle with a triggered relay on the power wire for the fuel injecrors.

Check for a running car by checking the state of the ignitiin power circuit from the fuse box or key switch.

Im on q cell phone so excuse the simplistic responses
2  Using Arduino / Programming Questions / Re: Are UNO and Nano compatible? on: April 24, 2014, 10:39:10 am
Thank you guys. Now, another question: do Arduino boards include BEC, Battery Eliminator Circuitry feature? Like some ESC's, you power it with something around 7-12V and it gives regulated 5V for powering a RC receiver, like this:

http://myrobotlab.net/wp-content/uploads/2013/06/RC_Rec_bb.jpg


In the normal non RC world, we call that a voltage regulator. Not exactly sure why they call it a BEC, the name doesn't make sense to me and never has since your not eliminating the battery but regulating its voltage down to what is rated for your device. They are just typically higher than normal current rated regulators.
3  Using Arduino / Displays / Re: Use serial LCD without Tx pin on: April 23, 2014, 04:24:21 pm
Then what pin I should use. Sorry I am still beginner.

At the internet or arduino?

In order to get any real help here you're going to have to start showing a little initiative and do some searching. I'm feeling a tad generous today so I googled it for you.

4  Using Arduino / Displays / Re: LCD Issues on: April 23, 2014, 02:22:12 pm
Post your code using the code tags (# button in message editor)

Pretty sure you're not properly updating the screen in your code by the sounds of it.
5  Using Arduino / Displays / Re: Micro serial display for Pro Micro - 3.3V/8MHz on: April 23, 2014, 11:54:23 am
Something like this might be exactly right for your application.

In a nutshell it is an arduino and tiny oled display in one. Add your bluetooth module and you're set.

https://www.sparkfun.com/news/1445
6  Using Arduino / Displays / Re: Need Help With a Mystery Display on: April 22, 2014, 10:43:47 am
Typically displays like that are only capable of showing things like the 4 digit time as well as a few other indicators like am/pm, alarm, ect

What sort of voltage are you trying to drive this thing with.

You can sometimes look at most displays at a certain angle and see all of the different characters/symbols they are able to display. Especially those of the proprietary nature as this one is.
7  Using Arduino / Displays / Re: Use serial LCD without Tx pin on: April 22, 2014, 10:15:18 am
http://arduino.cc/en/Reference/SoftwareSerial
8  Using Arduino / Programming Questions / Re: stupid button press question on: December 10, 2011, 10:55:58 pm
And then you probably have to deal with debouncing the button.



What would the purpose of this be? I know the surface level of what debouncing is, but in a case like this, what significance would it be? Just Wondering.



http://www.arduino.cc/en/Tutorial/Debounce
9  Using Arduino / Programming Questions / Re: Arduino powered turret from Portal game (populating arrays) on: May 31, 2011, 01:20:05 am
I am not able to add any input for the coding of your project but I stumbled on this thread while lurking with the intentions of learning and liked the idea of what you are working on. I think maybe a cheap lazer pointer wired up instead of the led may be a cool addition in retrospect to the game.
10  Using Arduino / Sensors / Re: safely interface with car sensors. Grounding and voltage (non OBDII) on: March 22, 2011, 04:00:59 pm
Yes, most car sensors are 5v or just a variable resistance reading already.

As long as you have common grounds you should be able to take readings with a microcontroller.

Always check with a DMM first.
11  Using Arduino / LEDs and Multiplexing / Re: IR LED on Arduino on: March 22, 2011, 09:33:33 am
This really is basic stuff, the kind you learn from a little effort on your part.

You have given us almost no information whatsoever about what you are trying to accomplish so I am left only assuming your trying to pulse this led to mimic some sort of ir communication device.

Here is an example I quickly found using google (Google should always be your first reference when asking a question)

http://www.electronicsteacher.com/tutorial/learning-to-use-leds-and-transistors.php
12  Forum 2005-2010 (read only) / Forum / Re: WE NEED MODERATORS on: December 15, 2009, 05:37:53 pm
There is a on going thread with this issue as one of the discussed topics.

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1260740736/0
13  Forum 2005-2010 (read only) / Forum / Re: Improve the forum on: December 17, 2009, 12:08:55 am
Already a on-going thread.

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1260740736/0
14  Forum 2005-2010 (read only) / Forum / Re: "Best Platform" on: November 20, 2009, 01:29:09 pm
We talking about a possibility for new software here?

15  Forum 2005-2010 (read only) / Troubleshooting / Re: LCD 4x20 issue on line 3/4 with over 16 characters on: November 14, 2009, 10:36:18 pm
I have been playing with my 20x4 lcd recently as well, i am having a similar issue.

I set up a example (liquid crystal) serial display sketch and when i type out a sentence to try and take up all 4 lines and send it

it will show up in this order.. line 1,3,2,4

I changed the code to say lcd.begin(20, 4);

any tips? thanks.
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