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1  Using Arduino / Displays / Re: Here is what I did with an Arduino and an LCD Display on: May 27, 2013, 09:57:27 am
Youtube says the video is available worldwide. Refresh your browser and try again.
2  Using Arduino / Displays / Re: Here is what I did with an Arduino and an LCD Display on: May 27, 2013, 09:54:06 am
I didn't add restrictions so I don't know what the problem is. I'll check it out.


3  Using Arduino / Displays / Re: Here is what I did with an Arduino and an LCD Display on: May 25, 2013, 08:31:23 am
Many people have asked if I would do a video of the Contemplator in action so I tried. Unfortunately my video camera has a terrible time with exposure in low light and color saturation but I made the video anyway. It will at least give you can idea of how fast/slow things are. Check out:


Craig Lindley
4  Community / Exhibition / Gallery / Beautiful LED Clock on: May 17, 2013, 10:57:37 pm
Here is a digital clock I made with a SparkFun Pro Micro Arduino, a ChronoDot RTC and some LPD8806 ribbon LEDs.

This clock turned out great and it is a real attention getter. At night it projects a light show onto the wall behind it that is always changing colors and is very abstract.

Why not build one for yourself ?

Craig Lindley
5  Using Arduino / Audio / Re: New library for PWM playback from SD cards: SimpleSDAudio on: December 30, 2012, 12:36:34 am
Pin 44 on my mega 2560 is committed to another function that I cannot change. So is it possible to use a different timer (like timer4) for PWM output with this code?
6  Using Arduino / Displays / Here is what I did with an Arduino and an LCD Display on: November 27, 2012, 04:12:58 pm
Check out:

The construction details are available in the December 2012 issue of Nuts and Volts magazine.


Craig Lindley
7  Development / Other Software Development / Re: BOARD preprocessor directives from IDE on: October 28, 2012, 10:06:17 am
This is all that I see. Where is the selected board?

/Applications/ -c -g -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections -mmcu=atmega328p -DF_CPU=16000000L -MMD -DUSB_VID=null -DUSB_PID=null -DARDUINO=101
8  Development / Other Software Development / BOARD preprocessor directives from IDE on: October 28, 2012, 09:28:04 am
I don't know whether this is the correct forum to ask about this but I've been searching the Internet and cannot find any reference to preprocessor directives that reflect the type of board connected to the IDE. This functionality would be very handy for myself and others.

So for example when I have an Arduino Uno connected (and selected in the IDE)  it would be great to have conditional code like:

#ifdef BOARD_UNO
... do this
... do this

So my questions are:

Does this functionality exists currently?
How does one go about requesting this type of functionality be added?

9  Using Arduino / Installation & Troubleshooting / Re: Arduino 022 and OSX Lion on: October 25, 2011, 09:18:34 am
I solved this myself. The problem was a mismatch in the RXTX library which I found by looking for upload errors in the system log with the I copied the files from the Arduino 022 install

librxtxSerial.jnilib and RXTXComm.jar

over the files in /Library/Java/Extensions and my upload problems went away.

10  Using Arduino / Installation & Troubleshooting / Re: Arduino Pro Mini - Problem uploading to board on: October 25, 2011, 08:28:10 am
Just wondering what version of OSX are you running? I'm having trouble uploading to an Arduino Uno under 10.7.X or Lion
11  Using Arduino / Installation & Troubleshooting / Arduino 022 and OSC Lion on: October 24, 2011, 09:22:02 pm

Before I upgraded to OSX Lion on my MacBook Pro I had no problems with the Arduino IDE uploading sketches to my Arduino Uno. After upgrading, every time I try to load a sketch (any sketch) the whole blows off. Here is a portion of the error message:

Process:         JavaApplicationStub [494]
Path:            /Applications/
Identifier:      cc.arduino.Arduino
Version:         0022 (0022)
Code Type:       X86 (Native)
Parent Process:  launchd [127]

Date/Time:       2011-10-24 20:19:43.036 -0600
OS Version:      Mac OS X 10.7.2 (11C74)
Report Version:  9

Interval Since Last Report:          193722 sec
Crashes Since Last Report:           15
Per-App Interval Since Last Report:  4279 sec
Per-App Crashes Since Last Report:   15
Anonymous UUID:                      04566F11-174C-443A-A4F0-9C64E7DCD490

Crashed Thread:  27  Java: Thread-6

Exception Codes: KERN_INVALID_ADDRESS at 0x00000000b21b8bf0

Has anyone else seen this behavior and more importantly have a fix for it. I'm in the middle of a new Arduino project and I have to get this working.

Any help would be appreciated.
12  Using Arduino / Installation & Troubleshooting / Re: TLC5940 library BasicUse example won't compile ( include not found) on: March 01, 2011, 02:32:27 pm
Thank you that did it.
13  Using Arduino / Installation & Troubleshooting / TLC5940 library BasicUse example won't compile ( include not found) on: March 01, 2011, 02:06:36 pm
I'm running the Arduino IDE on a Mac OSX 10.6.6. I've installed the IDE and it works fine. I've been able to compile, download and execute the Blink example successfully.

I got the TLC5940 library as a zip file and extracted the files into a directory I created. The directory structure looks like this:


I then go into the IDE and load the TLC5940 BasicUse example via the File menu as follows:

File/Sketchbook/hardware/libraries/TLC5940/BasicUse which brings in the code.

When I try and verify (compile) the code I get a series of errors that I think are caused because the include file was not found.

BasicUse.cpp:50:21: error: Tlc5940.h: No such file or directory
BasicUse.cpp: In function 'void setup()':
BasicUse:55: error: 'Tlc' was not declared in this scope
BasicUse.cpp: In function 'void loop()':
BasicUse:66: error: 'NUM_TLCS' was not declared in this scope
BasicUse:70: error: 'Tlc' was not declared in this scope

So do I have my environment setup wrong?
I can see the include files in the TLC5940 directory just fine.

Thanks for any help you can provide.

Craig Lindley

14  Using Arduino / Project Guidance / Re: Arduino Uno Power Question on: February 25, 2011, 12:52:50 pm
I guess what I will do is remove the USB current limiting fuse so that the PC cannot source or sink current from the power supply in my project.
15  Using Arduino / Project Guidance / Arduino Uno Power Question on: February 24, 2011, 12:13:37 pm
Hi I'm new to Arduino and have a question. In my project I have a large 5 volt regulated power supply. I want to power the Arduino with this supply. Can I simply connect the 5V out of my power supply to the +5V pin on the power connector or will this cause problems with the on-board power circuitry?
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