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Idiot Freak now has to fix a 555 circuit
Ok, Larry talked me into designing him a 555 "coupler trigger." He doesn't want anything surface mount or programmable. I should have told him to find an engineer 40 years older...
Wednesday, 5 November 2014 - 14:54
Studio 6.2 build 1502
Where do you find this new build? All I can find is build 1153 and I already have that.
Friday, 31 October 2014 - 21:19
Regulation Conundrum 2.8v
I've been using these nice little TPS60100 Charge pump regulators for powering things from 3v batteries for a while. You put the chip, a couple capacitors and you've got a steady...
Monday, 13 October 2014 - 13:14
BOD Fuse Settings BODPD & BODACT
Somehow, I'm puzzled by these two fuses.    The modes are: Disabled - Don't use the BOD Sampled - Sample the voltage now and then and reset if low. Continuous - Sample...
Tuesday, 7 October 2014 - 18:36
SAM D20 Programming Connector
For want of an ARM section, I'll ask here.   Anybody know how to connect the programming connector for the Atmel-ICE to a SamD20?   The test boards I made ages ago have...
Monday, 6 October 2014 - 23:07
24V 6.5A power supplies now provide 9.6v at a few mA
I have 2 GlobeTeck RT-3s150-24 power supplies that have both failed within a few weeks of each other. Both doing the same duty, both in the same manner.   They've been train...
Thursday, 25 September 2014 - 19:46
SPI vs SPI and a TFT display
I've seen people say they can write pixels out to a TFT display faster using SPI than 16 bit parallel. This sounds incredulous to me.   Is it because, by the time I've output...
Friday, 19 September 2014 - 13:03
I found a typo! I found a typo!
  I'm feeling smug here: Being dyslexic, I'm more likely to MAKE them than find them. This is in the xMega D3 datasheet, page 51.  
Friday, 12 September 2014 - 17:44
ATTiny45 Compatibility mode
Quote:The ATtiny15 compatibility mode is selected by writing the code “0011” to the CKSEL fuses (if any other code is written, the Timer/Counter1 is working in normal mode). So,...
Tuesday, 2 September 2014 - 01:31
New "Sam" arm chips are mighty attractive
http://www.digikey.com/product-h... Sam G Cortex M4 256KB flash or 512KB flash.
Wednesday, 13 August 2014 - 23:08
A dummy's C tip number 342
If you've just added a function to your program, and suddenly you're getting compiler errors in other places that have nothing to do with the new function, you might have...
Saturday, 2 August 2014 - 21:24
4 wire touch screen: I'm touched.
Or, would that be "tetched?" (see http://en.wiktionary.org/wiki/te... ) I have the X+ pin pulled "high". The X- pin "low." I can see the Y- pin varying as I move my finger around...
Thursday, 31 July 2014 - 19:00

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