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1  Using Arduino / Installation & Troubleshooting / Re: Mega 2560- USB connection while using 5V external power on: July 31, 2014, 06:21:46 am
It's a long time since I used an Arduino, so I can't remember what I did.

Did you cut both +5v and GND wires in your USB cable?
If so, that's probably the cause. I think I only cut the +5v cable.
Without the GND wire, I'm not sure the USB signals will be recognised, even though they are differential.

After my success with the cable I progressed onto modifying my Arduino's and actually cut the +5v track leading out from the USB connector. Not for the faint hearted but it worked for me on the boards I modified.

Iain

2  Community / Website and Forum / Re: Favorite button? on: November 01, 2012, 10:02:31 am
You also have a list of notified posts in your user area. I agree it would be nice to have but as a workaround it's not bad.

As I mentioned, I did ask when this forum was created for a favourites button. This was a feature of the old forum but was told to use the notify button.

Iain
3  Community / Website and Forum / Re: Favorite button? on: November 01, 2012, 04:04:55 am
I asked about this when the new forum started and was advised to use the notify button. This keeps you up to date on any later postings and provides a way to find threads you're interested in.

Iain
4  Development / Other Software Development / Re: Arduino Simulators on: April 12, 2012, 04:14:34 pm
Could you clarify what Proteus is? A search had too many hits. What is it?
Check out:

http://www.labcenter.com/products/vsm_overview.cfm

Iain
5  Using Arduino / LEDs and Multiplexing / Re: max7219 expert needed 8x64 matrix on: March 09, 2012, 10:24:39 am
Have you sorted this out?

Surely you just need a call to writeArduinoOnMatrix() at the end of setup() and an empty loop() {}?

Iain
6  Using Arduino / Displays / Re: New LiquidCrystal library - LCD library on: March 02, 2012, 01:43:36 am
There is nothing complicated in what I have posted. It's pretty simple and straight forward and requires no second guessing of my intent.

I don't wish to disagree with you, but I'm not clear what you're after either. I do not think it's clear or straight forward.

Iain
7  Development / Other Software Development / Re: Is anyone interested in a setup wizard for Visual Studio Express? on: February 27, 2012, 03:51:38 pm
Interesting.

Is the VS Partner license different to VS Pro, or did Microsoft change the licensing for VS2010?

I have VS2008 Professional and the license allows me to install in on all my computers as long as I'm the only person using it at any one time.

Iain
8  Development / Other Software Development / Re: Trouble writing a library on: February 20, 2012, 07:26:44 pm
I have written a keyword  file. a .cpp file and a .h file all with the name THMOD.(H/txt/cpp). I put the three files in a directory arduino/library/THMOD.
Unless you make a typo when posting, you've got the directory wrong. It should be arduino/libraries/THMOD.

Iain
9  Development / Other Software Development / Re: An alternative Serial Library for Arduino 1.0 on: February 20, 2012, 05:19:53 am

Reply #40...
http://arduino.cc/forum/index.php/topic,85207.msg641119.html#msg641119

...next to "Reply #" there is a message icon.  It is a link to that message.  On this message it is an exclamation mark.  The title over each message is also a link to that message.


Thanks for the tutorial. Most helpful.

Iain
10  Development / Other Software Development / Re: An alternative Serial Library for Arduino 1.0 on: February 19, 2012, 02:47:51 pm
Correct. See post #40 in this thread for confirmation. Would have posted a link but I don't know how to link to a specific message.

Iain
11  Development / Other Software Development / Re: How to control the #define in a library? I mean... on: February 19, 2012, 12:42:02 pm
Does this help:

Code:
template <int length>
class Test
{
  int buffer[length];
};

void setup()
{
  Test<20> shortLine;
  Test<40> longLine;
 
  Serial.begin(115200);
  Serial.println(sizeof(shortLine));
  Serial.println(sizeof(longLine));
}

void loop()
{
}

Iain
12  Development / Other Software Development / Re: How to control the #define in a library? I mean... on: February 19, 2012, 12:05:09 pm
Without a make mechanism in arduino, such as define xxx as yyy in the make file, the only way to communicate with another .cpp is at execution time.
Not so. C++ templates offer a compile time link.

Iain
13  Development / Suggestions for the Arduino Project / Re: Arduino IDE Bug? on: February 19, 2012, 12:02:38 pm
OK. Now I can reproduce it. Never used the open icon before. Handy. I didn't know I could get at a recent file list since it wasn't in the menus.

I can reproduce this in Win 7 & XP using Arduino IDE v1.0

Iain
14  Development / Other Software Development / Re: Mods to HardwareSerial to handle 9-bit data on: February 19, 2012, 11:22:31 am
Make sure you have the latest version. I'm not sure the variable bit stuff was in the early versions.

Iain
15  Development / Other Software Development / Re: How to control the #define in a library? I mean... on: February 19, 2012, 08:29:31 am
I'm not certain that you can do that given the way the Arduino build system works.

However if your library creates C++ classes, you could template the class, supplying the width of the LCD display as a template parameter.

Iain
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