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LED question: Is my logic correct?
I'm building a small H-Bridge that will be run at up to 30V. I want a pair of LEDs to indicate voltage activity on the output. My understanding is that even though LEDs have...
Friday, 1 June 2012 - 21:22
Butterfly GCC compiling for atmega169PA
Gents, I'm having some difficulty in compiling Martin Thomas' Butterfly GCC in AVR Studio 5. From the device signature of my butterfly, it has either an ATmega169P or ATmega169PA...
Wednesday, 25 January 2012 - 03:26
Methods of tracking specific DS18X20 sensors on a bus
Gents, I have an application that will have a minimum of 5 DS18B20 sensors and possibly a max of 8 (exact requirements not decided, but it will be a fixed number of sensors)....
Wednesday, 4 January 2012 - 05:01
ATmega168 pin change interrupt not as expected
Gents, I am writing some test code for an ATmega168. PB0 is tied directly to the square wave output pin of a Maxim DS1307 that is configured to output a 4096 hz square wave. Here...
Sunday, 2 October 2011 - 04:44
Where can I find a datasheet for a Tyco P483B03 IGBT PIM?
Gents, I have an Allen-Bradley VFD that has a latched power module. The module is made by Tyco (or was, in 1995 or so) and has a part number P483B03. I have had no luck...
Thursday, 13 January 2011 - 02:36
Help porting AVR447 to WinAVR
Folks, Well, this thing is kicking my butt! I'm playing around with a cd-rom motor (well, I WANT to play around with it but this code is NOT cooperating!). The hardware (...
Monday, 3 January 2011 - 08:31
How do I measure the voltage of individual cells in a bat?
Gents, I was thinking about starting a fairly simple battery charger project to charge A123 batteries (2 to 4 cells max). Given that it is basically a constant current ->...
Friday, 26 November 2010 - 22:21
This makes no sense!
I'm loosing my mind. I've built a simple ph probe amp board that uses a LMC6001 to slightly amp and buffer the ph probe signal and then send it to a LMC6041 operating as a...
Wednesday, 6 October 2010 - 05:29
Source for cheap transformers?
Does anyone have a good source for small step down transformers? Generally, most of the power supplies I need for my projects are in the 3.3 to 5 VDC range with a current of only...
Friday, 4 June 2010 - 04:24
low current negative voltage supply?
Gents, I am building a pH probe amplifier. Technically, I am using it to measure the pH of a salt water aquarium (pH around 8.5-8.6 usually), so I could just power the LMC6001...
Friday, 4 June 2010 - 03:45
Proper program design methodologies
Gents, I'm currently writing a driver library for a TLC5916 constant current shift register which I am using to drive a 3 digit common anode 7-segment display. So far, all is...
Friday, 21 May 2010 - 23:47
Getting started with AVR32, eval board suggestions
Gents, I have a couple of AVR32 chips in the parts bin (AT32UC3B164-AUT) and am planning on building an evaluation board for this thing. When I first got started with AVRs, I...
Friday, 21 May 2010 - 04:08

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