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Yet another lesson learned: Polarized Relays
So, driving a small signal relay ought to be easy... An NFet as a low side driver and a diode across the coil and one is good to go!   Unless, of course, the small, 3 V, SMD...
Sat. May 26, 2018 - 01:31 AM
Arduino MultiFunction Shield 7 Seg Driver Hardware Question
Although I have several Arduino boards for quickly bread boarding a project, I've not used a commercial Shield before, so I'm still learning some Arduino basics.  ...
Tue. Mar 20, 2018 - 08:41 PM
Dragon and Xmega32E5 Difficulties [Solved!]
Dragon and Xmega32E5 Difficulties:   First, thank you to Jim (East Coast Jim) for the Dragon!   Running Studio 6.2xxx, and the Dragon works great programming an Arduino...
Sun. May 21, 2017 - 05:19 PM
Waterproof is a binary concept...
Waterproof is a binary concept...   So, the roof on the back side of my house has a couple of "V" angles, and the snow and ice builds up. A couple of years ago the roof...
Fri. Jan 20, 2017 - 03:03 AM
PCB Manufacturing error or my error? RIMU and ITEAD Studio
Oh, the agony of defeat...   I could use some guidance on this one.   I made a PCB layout using the RIMU PCB layout software, and sent the board to ITEAD Studio. I've...
Fri. Mar 11, 2016 - 06:54 PM
Reading the Xmega32E5 Signature Row with an AVR ISP mkII ? <Solved>
I have an AVR ISP mkII connected to the PDI interface on an Atmel Xmega E5 Xplained board.  (Xmega32E5) I am using Studio 6.2.1548 Service Pack 2   Power is via the USB...
Fri. May 8, 2015 - 05:00 PM
"Backwards Powering" a PFet High Side Driver ?
The photo attached is from the Atmel Mega168 Explained demo board's schematic.   There is a Mega32U4-MU on the board that is a "Board Controller" and provides Debugging for...
Fri. Feb 27, 2015 - 11:53 PM
Measuring Ultrasonic Piezo Transducer's Resonant Frequency?
I thought I might do a project or two (for fun) with an ultrasound transducer. I have several to work with, but don't have a data sheet. I thought I'd measure their Resonant...
Fri. May 30, 2014 - 07:16 PM
Maestro A2035-H GPS Data Sheet? User Feedback?
I am looking for a few (
Sun. May 5, 2013 - 01:17 AM
Xmega Assembly Code Instructions in Hex
This is probably a newbie question, but I could use a pointer in the right direction. I generally program in Bascom and ZBasic, not C or Assembly. That said, I would like to look...
Sat. Apr 13, 2013 - 12:55 AM
Xmega Interrupt Vector Table?
Usually the compiler handles all of the details and life is good. Presently, however, I am trying to understand the Interrupt Vector Table for the Xmegas. I am familar with Table...
Mon. Feb 25, 2013 - 10:03 PM
PDI Interface Change with "New" Xmegas?
Has anyone seen an App Note on migrating from the original Xmegas to the New & Improved Xmegas, (The ones with the USB modules and the improved ADC)? I've looked, but perhaps...
Thu. Dec 20, 2012 - 07:00 PM

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