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24vac valves and motors I just looked at a contraption with 24v AC motors and solenoids controlled by relays. As expected, it goes mildly haywire when he turns one of these motors on or off. If it was DC... |
Thursday, 1 February 2018 - 19:25 |
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LM2840 CBoot capacitor Searching the data sheet, I don't find anything about the voltage needed for the CBoot capacitor. I design train related things for 10 to 30 volt input. ... |
Thursday, 9 November 2017 - 22:51 |
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Mega328 timer 2 interrupt As soon as I set the TIMSK to enable timer 2 interrupt, my program stops working, so obviously, I've overlooked something: Setup routine: void setup() { pinMode(... |
Monday, 3 July 2017 - 15:59 |
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Can't debug my Arduino Nano with Studio 7 Eek! I imported and built my sketch. Programmed the arduino using my Atmel ICE. Of course the program isn't working, that's why I'm trying to debug. But when... |
Monday, 3 July 2017 - 14:55 |
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Funny how that works.... Working on an Arduino project for a magazine article. Was just about working right, and I decided to make a small change in the program. Now it's completely doing nothing like it'... |
Sunday, 19 March 2017 - 21:16 |
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"High" is half a volt? I've been using some TSOP2438 infrared receivers to detect trains and the like blocking flashing IR LEDs for quite a while now, but I've been stuck for several days on a project... |
Monday, 20 February 2017 - 20:57 |
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Installing on another computer. Yet another computer. Trying to install Studio on yet another replacement computer, but it keeps asking me over and over again if I really want to install Atmel Corp. Ports (COM&LPT) Jungo... |
Sunday, 22 January 2017 - 16:18 |
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PR0 and PR1 In a battery system where you don't want to leave inputs floating, what do you do with PR0 and PR1 if you're not using a crystal? I've just always ignored them, but I wonder if... |
Friday, 6 January 2017 - 16:21 |
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Split from LM75 through hole alternative Don't be afraid of SMD. The first time I tried it with my plain soldering iron, I decided to forget DIPs. Get yourself some small Solder braid. Thread split from: ... |
Thursday, 15 December 2016 - 20:13 |
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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 |
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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 |
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Freudian slip? // Measurement Channels #define batteryChannel 5 #defile currentChannel 6 |
Thursday, 24 November 2016 - 18:02 |