Search found 7 matches

by teedeeus
Mon Aug 22, 2011 8:53 am
Forum: RBBB
Topic: d1
Replies: 1
Views: 4407

Re: d1

From the RBBB documentation: In the RBBB the diode provides reverse polarity protection on the 5 volt power rail. Under normal circumstances the diode does nothing. If the power is connected with polarity reversed, the diode shorts out the power supply. This protects the Atmega 168 from exposure to ...
by teedeeus
Wed Jun 10, 2009 2:59 pm
Forum: Exhibition
Topic: New 4bit LCD library
Replies: 7
Views: 11124

Re: New 4bit LCD library

OK - I have new library code - I'm calling it version 0.1 - please don't use the previous code. I hope the delays are implemented correctly as they seem to be working fine with my LCD.

Please send me your comments and experience with the new version of this library.

-teedeeus
by teedeeus
Wed Jun 10, 2009 12:36 pm
Forum: Exhibition
Topic: New 4bit LCD library
Replies: 7
Views: 11124

Re: New 4bit LCD library

teedeeus: I agree with what you are trying to do with the LCD library - here are some comments, both pro and con, on what you have done so far. I hope you can use them to refine your project. In my opinion removing the 8-bit stuff from the library is a good idea. I can't see any reason to try to ac...
by teedeeus
Wed Jun 10, 2009 11:20 am
Forum: Exhibition
Topic: New 4bit LCD library
Replies: 7
Views: 11124

New 4bit LCD library

I just got done modifying the original LiquidCrystal() library that comes with the Arduino IDE to use only 4 data lines, enable and rs. I thought the LCD4Bit library was great but didn't like having to recompile the library every time I needed to change pins for the LCD. This way any pins can be use...
by teedeeus
Mon Jun 08, 2009 10:19 am
Forum: Hardware
Topic: Current sourcing and sinking on Digital Output Pins
Replies: 6
Views: 9845

Re: Current sourcing and sinking on Digital Output Pins

I'm sorry, but I have not been able to find the answer to this question on the web. Am using BBB w/ Arduino Duemilanove / Atmega328. What is current sourcing capacity of an individual digital output pin (that is: pin connected to resistor connected to LED connected to ground)? Also what is current ...
by teedeeus
Wed Jun 03, 2009 4:28 pm
Forum: Software
Topic: Code Library - Binary Counter
Replies: 7
Views: 11449

Re: Code Library - Binary Counter

I noticed a potential problem with the global variable i in this code. When you get done setting your outputs, i will contain 11. The loop adds 1 to i so the first binary number displayed will be 12. Personally I prefer to initialize my loop variables ( i , j , k ,etc) within the loop they are used ...
by teedeeus
Tue Jun 02, 2009 1:28 pm
Forum: Software
Topic: Code Library - Binary Counter
Replies: 7
Views: 11449

Re: Code Library - Binary Counter

There is some code here that would have to be modified for your application: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1236705296 , but that should give you a starting point. For beginners, remember not to connect anything to digital pins 0 and 1 as they are used for uploading your sketch. Use...