Electronics and Embedded Programming V3 - Developers

Planning on buying an arduino tomorrow for tinkering with various controls for my laptop. Anything I should buy along with it? Any must-knows?

[QUOTE=Perl;34620811] Anything I should buy along with it? Any must-knows?[/QUOTE] Buy components. Don't exceed the pin current of 40mA or it may blow up. Don't randomly wire stuff up without thinking it through.

Don't inhale smoke emitted from any components during operation

Is it possible to use an arduino as a MIDI controller?

[QUOTE=Perl;34620960]Is it possible to use an arduino as a MIDI controller?[/QUOTE] Yes

The reason why analog scopes are way more fun than digital scopes: [media]http://www.youtube.com/watch?v=429gEvzlJig[/media]

I ordered like 300 SPDT relays.

[QUOTE=ROBO_DONUT;34633715]I ordered like 300 SPDT relays.[/QUOTE] Are you gonna make a relay cpu?

A clock, probably. Maybe use 60Hz mains as the time reference. I'll probably still have like 200 left over. They're all SPDT, though, which are infinitely less useful than DPDT now that I'm actually trying to design the thing. I'm trying to decide whether or not my parents will kill me over the power bill and the noise.

I could listen to the sound of relays all day long.

[img]http://i.imgur.com/bsx6n.png[/img] 2 hours of my life

[QUOTE=Chryseus;34634314]I could listen to the sound of relays all day long.[/QUOTE] Not during the night.

[t]http://i.imgur.com/ft7sx.png[/t] Added a MAX6350 to my breadboard supply, gives a perfect 5.00V output now.

Pretty fancy, I probably finish my power supply some day.

Yeah I still need to get my bench supply done, *sigh* lack of cash.

I fried some components and then my soldering failed. I will remake it on a stripboard [editline]10th February 2012[/editline] But first I'll have to order some capacitor grab-bags

[QUOTE=Chryseus;34637312][t]http://i.imgur.com/ft7sx.png[/t] Added a MAX6350 to my breadboard supply, gives a perfect 5.00V output now.[/QUOTE] I need to figure out how to make a small-ish switching supply some day, or at least a very compact 12V 4A power supply that won't incinerate after a short run-time. :v: No, ddrl46, I'm pretty sure that for the project I have in mind I should figure it out.

Hoping I get some extra cash soon to grab one of these with [IMG]http://www.powercomplete.com/pc/images/items/hg_LineConditionersIsolationTransformers-TrippLiteIS500.jpg[/IMG]

Need some advice, father has like 1kg of solder, it's type is e7/91 and it looks 2-3mm thick. Is it fit for electronical soldering?

[QUOTE=DrLuke;34632771]The reason why analog scopes are way more fun than digital scopes: [media]http://www.youtube.com/watch?v=429gEvzlJig[/media][/QUOTE] [SUP]SLINKY.[/SUP] Reminds me of it. somehow. Make lissasjous figures D:

[QUOTE=Tw34k;34645308]Hoping I get some extra cash soon to grab one of these with [IMG]http://www.powercomplete.com/pc/images/items/hg_LineConditionersIsolationTransformers-TrippLiteIS500.jpg[/IMG][/QUOTE] Overpriced you can get a 2kVA isolation transformer for cheaper than that if you look around.

[t]http://localhostr.com/files/tFcar1f/IMG_20120211_174947.jpg[/t] My new soldering station/electronics lab! Also bought a component box.

Couldn't resist building another one. [img_thumb]http://i.imgur.com/8wHWZ.jpg[/img_thumb] [img_thumb]http://i.imgur.com/3LMar.jpg[/img_thumb] Now I need to get some terminal blocks to actually use it.

[QUOTE=Chryseus;34650726]Overpriced you can get a 2kVA isolation transformer for cheaper than that if you look around.[/QUOTE] Didn't really mean that one particularly, just one in general. I have done a bit of looking around and I still cannot find anything relatively decent for under $100.

[QUOTE=Tw34k;34655101]Didn't really mean that one particularly, just one in general. I have done a bit of looking around and I still cannot find anything relatively decent for under $100.[/QUOTE] Get an old 400W or so ATX-PSU, then you take out the Filter that is usually soldered directly to the power plug. Then you buy yourself a 1:1 isolation transformer and a nice plastic or metal casing (might even use the ATX-PSU) and put everything together.

[QUOTE=Chryseus;34634314]I could listen to the sound of relays all day long.[/QUOTE] [url=http://www.youtube.com/watch?feature=player_detailpage&v=n3wPBcmSb2U#t=88s]~Youtube~[/url]

[IMG]http://oi42.tinypic.com/2mexojk.jpg[/IMG] The parts for my Z80 homebrew computer finally arrived, so I soldered the Z80 up to a bit rate generator that's providing the clock source (and will later provide baud for my serial com IC) and plugged it in to see if it worked. No memory as of yet, but on the oscilloscope screen you can see the up/down of the memory require line. That's it for now though, I'll add some EEPROM/RAM tomorrow in the morning.

Stop tempting me to write another 50 page manifesto of parts I need and therefore basically fire up the chezburger labs once again. Maybe I should continue on that one thing. hmmm

[QUOTE=Zero-Point;34644470]I need to figure out how to make a small-ish switching supply some day, or at least a very compact 12V 4A power supply that won't incinerate after a short run-time. :v: No, ddrl46, I'm pretty sure that for the project I have in mind I should figure it out.[/QUOTE] what kind of input voltage?

[QUOTE=SubbyV-2;34662070]what kind of input voltage?[/QUOTE] 110VAC. I've got a 3A peltier wafer lying around and I'd like to make a tiny fridge out of it. :v: