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Outputting an integer to USART
Hello, I've been using the serial port to talk between my PC and the atmega 328p. I wrote a small function to print strings to the PC and been having fun with that, but I cannot...
Sunday, 16 January 2011 - 19:37
STK 500 port B
I recently starting using an STK 500 with a mega328p I had lying around. My question is why can I not light up all the LED's on port B? If I use this code as a quick example:...
Friday, 14 January 2011 - 08:50
Help me choose an accelerometer
Hey guys (and gals), I am slowly trying to design a self-balancing robot that I have been postponing for a while, and now I've finally gotten the time to get into it. I am going...
Wednesday, 28 January 2009 - 00:46
Which pins for two PWM signals?
I want to run two DC motors with h-bridges using PWM. Now from what I understand, OC1A is a timer/counter output that I can use. What is OC1B used for? From what I understand...
Tuesday, 27 January 2009 - 02:35
Help me choose the proper crystal
I am a little confused still as how to choose the proper crystal frequency. I will be using an atmega32 for my project which is specified to run at 16mhz. Now I want to be able...
Monday, 26 January 2009 - 09:41
Basic clock questions
Hello, I know the basic purpose of the clock (so the uC can do work), but I have a few questions about it. Why would you use an external crystal over the internal AVR clock?...
Tuesday, 19 August 2008 - 09:41
Powering a 7-segment display
I have a rather large 7 segment display that requires about 20volts and 50mA per segment. Now my BCD to 7-segment decoder isnt able to power my display becuase of its power...
Thursday, 22 November 2007 - 09:01
Reading vehicle RPM
Im using a butterfly that will be installed on my motorcycle to read the RPM. I found an input pin that can be used to get the signal. My question is, how do I read the RPM on...
Tuesday, 1 May 2007 - 19:32
Reading a frequency with a butterfly
I've been playing around a lot with my butterfly lately and manged to make some of my own menu's and simple routines. Right now I am trying to use my butterfly for a frequency...
Wednesday, 18 April 2007 - 10:02
Compiling butterfly app from ATMEL
I am trying to compile the butterfly app source from ATMEL (available on their site) so that I can tweak and play with it. What's the best way to go about this? Right now I have...
Monday, 16 April 2007 - 09:31
Butterfly programming error
Trying to program my butterfly via serial with AVR studio. When I try to flash the hex file to it with AVR Prog, I get this error: "Address 0x0000, Expected" 0X940c, Received:...
Monday, 16 April 2007 - 06:07
Recommend me the right uC for the job
Hey Guys, I am working on a simple way to read the engine RPM of my dirtbike. Basically I was thinking of taking a signal off the negative coil wire and using this pulse as a...
Friday, 6 April 2007 - 00:03

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