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256  Using Arduino / General Electronics / Re: Is there any cheap component shop? on: June 09, 2012, 01:56:01 pm
I have made several purchases from Terry King's shop YourDuino.com.  Always great prices and fast shipping, but most importantly is the wonderful wiki that he has put together to support all of his products.  I recommend that you take a look around there.
257  Using Arduino / Project Guidance / Re: ArduĂ­no Mega + MRF24J40 on: June 06, 2012, 04:08:38 pm
802.15.4 specifies the physical layer and media access control for low-rate wireless personal area networks (LR-WPANs), such as ZigBee or MiWi, not standard ethernet.

I would recommend that you look for a ZigBee or MiWi shield.
258  Using Arduino / Installation & Troubleshooting / Re: IDE 1.0.1 Problems with Leonardo, Windows XP and Windows 7 Enterprise on: May 27, 2012, 05:04:17 pm
Have you read this page: http://arduino.cc/en/Guide/ArduinoLeonardo
259  Using Arduino / Installation & Troubleshooting / Re: Arduino cannot run because it could not create a folder to store your settings on: May 21, 2012, 12:09:45 pm
One of two things is likely happening - Either your students will need WRITE access to the USER_NAME\APPDATA\ROAMING folder to create the appdata\roaming\arduino\preferences.txt file or they need WRITE  access to wherever their USER PROFILE is being stored so that Arduino can write to the sketchbook location.

One possible workaround is to add the following line (without the quotes) to the preferences.txt file "settings.path=c:\Users\*User*\WHEREVER THE USER PROFILE IS LOCATED"
260  Using Arduino / Installation & Troubleshooting / Re: arduino mega 2560 will not upload from computer to board on: May 16, 2012, 03:11:52 pm
How about telling us the error messages that you are getting?  Show us the sketches that you are trying to load.
261  Using Arduino / General Electronics / Re: Transistor Base Resistor Choices? on: May 14, 2012, 04:20:02 pm
In the US this is a great assortment:  http://www.amazon.com/Joe-Knows-Electronics-Value-Resistor/dp/B003UC4FSS/ref=sr_1_1?ie=UTF8&qid=1337030229&sr=8-1&tag=68656c7064757-20
262  Using Arduino / Sensors / Re: Reading Oregon OS V3 sensors on: May 14, 2012, 11:58:09 am
Perhaps you are referring to the Weather  Station Receiver Shield and it's sketch from the book Practical Arduino?

If so, here is the link for the code: https://github.com/practicalarduino/WeatherStationReceiver
263  Using Arduino / Sensors / Re: Multiple Temperature Sensors on: May 14, 2012, 11:47:24 am
Each DS18B20 has a serial number, so the temperatures from each are reported separately.
264  Community / Bar Sport / Re: Excellent Mega Clone on: May 08, 2012, 06:40:00 pm
I will definitely be looking for your third version.
265  Community / Bar Sport / Re: Excellent Mega Clone on: May 08, 2012, 11:37:53 am
For the most part I am too impatient to wait for things to swim to the USA from China, so I will buy locally unless it's just an impulse buy for something that I really do not need.  If I am buying for a project that MUST WORK, I will buy domestically if at all possible.

Liudr - there is NO COMPETITION for your shields in my opinion.  You provide that "value added" that more than makes up for the price.
266  Community / Bar Sport / Re: Excellent Mega Clone on: May 04, 2012, 10:55:49 pm
I've been looking at that board.  Now that I've read this I'm definitely going to pick it up, as well as their w5200 Ethernet shield.
267  Using Arduino / Programming Questions / Re: help needed on bit of code, please, anyone???? on: May 04, 2012, 09:03:57 pm
It should look like this:
 Serial.write(cmd);
 Serial.write(data1);
 Serial.write(data2);

etc...
268  Using Arduino / Installation & Troubleshooting / Re: Arduino Mega com port not free on: May 04, 2012, 11:30:30 am
When that has happened to me, I just waited about 15 seconds and then plugged it back in.
269  Using Arduino / Installation & Troubleshooting / Re: Arduino USB problem (mac OS X) on: April 30, 2012, 04:40:50 pm
If you would let us know what you have tried, it can save some time in us offering suggestions that you have already tried.
270  Using Arduino / Installation & Troubleshooting / Re: Arduino USB problem (mac OS X) on: April 29, 2012, 05:13:50 pm
Turn bluetooth off on your mac and then try USB again.
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