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Discussion Title Created date
Question for FATFS from elm-chan users
I'm not an SD expert. As was stated in a recent thread, FATFS from elm-chan.org "just works". I built TinyFATFS into an app about 2 years ago; version 0.06. It works fine for me...
Tuesday, 2 November 2010 - 14:32
Problems/questions with ADC, differential mode
After many years of AVR apps using the ADC, I've finally run into a situation where differential mode makes sense to use. The AVR model is Mega165P, 3.6864MHz clock, 57600Hz ADC...
Tuesday, 12 October 2010 - 18:49
Selection of "load cell"
For an app, a vessel is to be filled to a certain weight and then emptied as part of a "dispense" process. We have been using a commercial scale and a serial interface, but that...
Sunday, 10 October 2010 - 14:31
Four switch positions, two AVR inputs
OK, Sparkys-- Imagine I have a 4-position selector switch. At each position one set of dry contacts is made. But I have only two AVR inputs, so I want the four positions 1-of-4...
Thursday, 29 July 2010 - 15:41
Tough Operator Interface Device--16 pos. selector?
We have one family of AVR apps that lives in a rough world--splashes and drips of concentrated cleaning chemicals including caustics, acids, chlorines, sanitizers. For operator-...
Tuesday, 20 July 2010 - 20:19
Decoding I2C -- assistance requested ...It's alive!
... and I guess I need a "HELP URGENT" and "please send me the codes", right? I'm reverse-engineering a sensor. By all indications it is I2C. I've used I2C, but as with...
Tuesday, 11 May 2010 - 15:18
Automotive environment--power supply and motor driving
We are preparing a design for an automotive (actually truck) app. Lots of vibration. Not under-hood, so full summer-winter range. 12VDC. 1) 12VDC actuator motor. We don't...
Thursday, 22 April 2010 - 15:22
4.18 Install questions on SP1/SP2
Well, I'm finally going to bite the bullet and try 4.18 vs. my installed 4.16. (I'm only an occasional Studio user, mostly for setting STK500 target voltage level). It is unclear...
Monday, 29 March 2010 - 18:56
To John W: Mega8 ==> Mega8A results in Ouch!
John: We've gone back-and-forth on Mega8 in the past few days. A new thread mentioned the Mega8A; I hadn't realized it had come out. I made some comments... https://www.avrfreaks...
Monday, 4 January 2010 - 22:12
Selecting RF module(s)--revisited
Instead of trying to restart the latest rehash that I can find https://www.avrfreaks.net/index.p... I decided to start another thread with my requirements. This is for a primarily...
Tuesday, 15 December 2009 - 00:06
DAC with 4-20mA current output?
We have a new app that needs a number of channels of 4-20mA output. Are y'all aware of any DAC chips that are set up to do 4-20mA output directly? That would save us the trouble...
Monday, 14 September 2009 - 19:54
Hexfet interfering with ISP
We have an app with a gaggle of hexfets IRFZ44VZ http://www.irf.com/product-info/... hooked to a Mega48. As there is a gaggle, some are in the ISP pins SCK, MISO, MOSI. With...
Wednesday, 5 August 2009 - 15:39

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