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1  Using Arduino / Programming Questions / Accessing Standard Libraries code on: October 16, 2012, 02:36:38 pm
Hello,
I'm trying to work out a bug communicating with a GPS module (LS20031 module). The Sparkfun blog showed others with a similar problem that they solved by increasing a buffer size in the NewSoftSerial library. I'm using Arduino 1.0.1, so the NewSoftSerial library is now a standard library renamed SoftwareSerial. I don't know how to get to the source file for it to try to modify it. I'm developing on a Mac OSX 10.7.4. Any advice where to access this?
2  Using Arduino / Project Guidance / Re: Pet Feeder with RFID on: September 06, 2012, 03:57:57 pm
Maybe this will help with your timer question (from Arduino Playground):
http://arduino.cc/playground/Code/DelaySeconds

I used this to create a "Meal Time" device for our dog because she has a way of convincing you that she's hungry even though someone else in the house just fed her 10 minutes ago, (or everyone assumes that someone else gave her breakfast, and her meal might get skipped).  It's a box with a red LED for "hungry" and a green LED for "happy" and a de-bounced button to push when you feed her.  I set the delay for 8 hours.  When you feed the dog you push the button and it lights up green "Happy" until the timer runs out, then it lights red "Hungry".  Now everyone knows if she needs feeding or not. We've been using it for months.
3  Using Arduino / Project Guidance / Check engine light on: September 04, 2012, 09:54:31 am
Does anyone have any info on hacking a reader to get the error code from the Check Engine light on my dashboard?
4  Using Arduino / Project Guidance / Going beyond breadboard on: February 28, 2012, 09:57:08 am
Hello,
I've assembled a weather observing station and have it gathering data. Now I'd like to assemble a few more to use in other locations, or for other geek friends to use.  I have NO experience in laying out or making a PCB.  Can anyone recommend a reference or how-to book for building a more permanent circuit?
5  Using Arduino / Displays / Re: Problem with LCD and Motor on: January 23, 2012, 11:12:29 pm
I'm having the same symptoms when using a 5v relay to switch current from a 12v supply to a solenoid. I put a 2n4004 diode across the coils of the relay and the solenoid to short the back EMF, but no joy.  It works OK with just the relay clicking on and off, but one or two cycles of the 12v solenoid takes out the LCD.  Should I try the capacitor across either or both DC supplies?
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