Post Created date
ATmega2560 Analog Comparator
Passing on advice that Mr. Gardner gave to me: Quote:Have you seen the circuit collection on ruggedcircuits?
Thursday, 27 February 2014 - 17:10
Trying to find reason for reset on T25
JC, I read through the data sheet parts about the POR and BOD and the only thing I can think of is the LED draws a lot more power than you expect. Maybe a stupid suggestion,...
Thursday, 27 February 2014 - 16:07
Cannot Print to Serial Terminal [n00b question]
I liked Arduino, but when people want to go from Arduino "C" something that avr-gcc will compile. It's a rough trip. First off have you read the data sheet for the mega328?...
Wednesday, 26 February 2014 - 04:06
dealing with ISR's
Are you in C or assembly?
Wednesday, 26 February 2014 - 03:43
3v logic -> high side FET switch
Quote:From what you're saying, there are a few problems that have been worked around for too long. You really want a metal enclosure for the vfd for rf shielding. You should have...
Thursday, 20 February 2014 - 13:31
3v logic -> high side FET switch
I have a fault of over complicating things and adding to many "features" that usually just end up causing more pain than gain. So I tried to apply the KISS principle to this....
Thursday, 20 February 2014 - 03:57
3v logic -> high side FET switch
Apologies hobbss, I got distracted with reconsidering failure modes and safety. But, I did look and the data sheet and I think the TC4427 should do it. I like the line: Quote:...
Wednesday, 19 February 2014 - 18:33
3v logic -> high side FET switch
@ Kartman, Harp away, no harm in that. Safety should be at the forefront. That is why I am looking for the "best" way to switch the signals. Got to thinking of the projects...
Wednesday, 19 February 2014 - 01:36
3v logic -> high side FET switch
Quote:Kartman What happens if the receiver fails? Don't expect a high degree of reliability - especially if safety is concerned. I worked up a "chart" if you will, of failure...
Tuesday, 18 February 2014 - 14:51
3v logic -> high side FET switch
@ Mr. Gardner, Looking now, thank you. I like it. Strange, I never find what I am searching for when I cannot see the forest from the trees. And I tend to search in the wrong...
Tuesday, 18 February 2014 - 02:47
3v logic -> high side FET switch
Oh, I was going to mention solutions that I bounced around. I considered using an inverter and BJT to drive small relays, (3 channels needed). That cost added up and seemed...
Monday, 17 February 2014 - 23:40
Studio 4 not connecting to STK500 after programing m48
yep, you got it John. That's the case. I should have figured that out, too rusty I guess. Thank you for your help.
Wednesday, 15 July 2009 - 00:01

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