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Inductance of a little PM motor
Using an oscilloscope and a waveform generator, I get the inductance of this little 12v permanent magnet motor somewhere between .45 and .91 uH. Can't get closer than that because...
Tuesday, 13 December 2016 - 20:21
xMega DAC (solved)
Trying to use the xMega DAC on an xMega32E5 to output a measured voltage, but it's not doing it. So here's a test program for the DAC:   /* * DACTest.c * * Created: 11/28...
Monday, 28 November 2016 - 21:57
Freudian slip?
// Measurement Channels #define batteryChannel 5 #defile currentChannel 6 
Thursday, 24 November 2016 - 18:02
AS7 Simulator : How can you see or set the port pins?
While you're stepping through code in the simulator, where can you see the port pins? Where can you put inputs high or low?    
Thursday, 3 November 2016 - 15:18
Don't leave unused pins floating!
I know not to do this, but...   My Tiny10 was running its program BEFORE the lightning storm last night. Now tries to, draws 50mA and gets hot and quits working.   Don't...
Thursday, 20 October 2016 - 18:22
Using Vishay TSOP2438 for "electric eye."
I've had these little IR data receivers around for a while and used them a couple times to detect objects, trains actually, by having them pass between an IR led blinking at 38KHz...
Tuesday, 30 August 2016 - 15:05
Torby uses a breadboard?
Shocking as it may seem:   This breadboard is about 40 years old. Seems to work just fine.   It's really just an LED blinker. The idea is a project that any model...
Monday, 8 August 2016 - 23:04
Look out!
Tommy has 4 arduino nanos. One of them already blinks the LED on pin 13. Had to run to Wal*Mart to get a USB mini cable.   I wanted to design a project people could do...
Thursday, 12 May 2016 - 01:51
Not getting TCD5 CCA interrupt (Solved)
Made a small change to my H bridge motor driver using an xMega 32E5, so naturally, it shorts out its power supply. Do you think I can make any OTHER mistake in the program? I have...
Wednesday, 9 March 2016 - 02:14
Using my wire tracer again...
Rats. I thought I was putting this in "Off Topic."   Tracing out somebody's invisible dog fence today and I came upon this odd splice. Perhaps they figured on inductive...
Saturday, 12 September 2015 - 22:47
Chip ID
Perhaps I just haven't RTFMd enough yet.   Is there a unique ID in each of the chips? I've found where you can tell what kind of chip it is. I'm thinking of the xMega where...
Sunday, 9 August 2015 - 11:59
Resistive Touch Screen for xMega or ARM
The boards I made in 2013 for resistive touch screens didn't work very well, barely got by, because the xMega couldn't measure higher than VCC/1.6, so "full scale" was just over 2...
Saturday, 1 August 2015 - 21:30

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