Portablizing BOM

[ahrlad]

I think they're great as a cheap-and-simple solution for hp/speaker functionality--I certainly haven't found any <$5 solutions that could compete. Unless you're eager to design a custom board I think they're pretty much the only game in town.

I dunno if @Stitches received his and tried it out maybe?

 

[BocuD]

I ordered some
Using one in my portable rn actually.
Lets put it like this: they suck, don’t buy them. They work, but the audio cracking is really bad with my speakers at least. They are advertised as 8ohm speakers (they are, according to my multimeter) and that amp should be able to drive them according to its ebay description. Well, nah. Datasheet says 4ohm max, so this it what you’ll get with 8ohm speakers:

 

[ahrlad]

I think the actual lesson there is 'don't trust ebay descriptions' rather than 'chip is bad because it doesn't work well with components it's not designed for'

 

[BocuD]

I think the actual lesson there is 'don't trust ebay descriptions' rather than 'chip is bad because it doesn't work well with components it's not designed for'

Yeah.. i guess? Anyways i’d say go with the amp thats already in the BOM

 

[Blinkerz]

I've been looking over threads regarding screens for vga 640x480 which accepts the crucial 15khz.

Has anyone much luck finding bigger sizes 8 - 10 inches.

 

[Shank]

For those people who would like to answer my question (I have a lot) and this page helped me a bit more.

https://bitbuilt.net/forums/index.php?threads/i-need-help.2593/

Please don't advertise your threads on other threads, keep the threads on topic. Be patient, replies take time. In the mean time, you should search and read up as much as you can on the forums, your answers may already be out there.

 

[Danielle]

The 4:3 5* screen in the list is not for sale anymore, does someone have a link or a similar screen with driver board that still sells to this day? Or something like that.

 

[GingerOfOz]

https://www.ebay.com/itm/5-TFT-INNO...ntroller-Board-/173582716418?oid=271913032715

 

[Ekterm]

Why are these specific screens recommended, like why is the L7009 so good?

 

[Stitches]

Why are these specific screens recommended, like why is the L7009 so good?

Usually screens are recommended for build quality, reliability, ease of use, and features. The L7009 specifically is recommended over other 7 inch screens because it can take progressive and interlaced component video in natively (removing the need to perform the VGA mod if you use one), build quality is decent, it's easy to open and work with, and there aren't many fakes.

 

[Emetsys]

I found the L7009 in china for $39.48 at the moment. I don't know if the source is trustworthy but if you are not from US it may be a good offer.
https://www.dx.com/p/l7009-7-0-tft-...bnc-av-input-stand-black-2045069#.XPgVE71R0uU

 

[Stitches]

I found the L7009 in china for $39.48 at the moment. I don't know if the source is trustworthy but if you are not from US it may be a good offer.
https://www.dx.com/p/l7009-7-0-tft-...bnc-av-input-stand-black-2045069#.XPgVE71R0uU

Yeah DX is the only real place to get those. It's safe.

 

[FreedomCookie]

Squishy tacts listed from ebay aren't available anymore. Anyone have a good source for these? I can find tons of tacts on Amazon but I have no idea if they're squishy or clicky and I don't wanna have to order some to find out.

 

[Ekterm]

Squishy tacts listed from ebay aren't available anymore. Anyone have a good source for these? I can find tons of tacts on Amazon but I have no idea if they're squishy or clicky and I don't wanna have to order some to find out.

After looking through just about every tact switch ebay has atm, I cannot find any orange squishy tacts like in the BOM. However, there are these gray ones that you start seeing at about $4 for 20 when searching "tactile button". I bought some but not sure if the quality is as good, anyone bought these before?
https://www.ebay.com/itm/20X-8x8x5M...h-Direct-Self-Reset-Soundless-TC/163659655351

 

[DeoNaught]

After looking through just about every tact switch ebay has atm, I cannot find any orange squishy tacts like in the BOM. However, there are these gray ones that you start seeing at about $4 for 20 when searching "tactile button". I bought some but not sure if the quality is as good, anyone bought these before?
https://www.ebay.com/itm/20X-8x8x5M...h-Direct-Self-Reset-Soundless-TC/163659655351

People have been buying these, been brought up a couple times in discord http://www.kestparts.com/alps-tact-switch-200-pcs-pack-snap-action-switch-new/
Shipping is like $7 so it's like $14 altogether...

Maybe these should replace the ones in the BOM?

 

[Fruity_Grebbles]

Another question about switches: I need some squishy tacts for a keybed on a synthesizer I'm making at an internship. However, they'll only allow us to source parts from Mouser. Can someone help me track some down? I'd be ever so grateful.

 

[GingerOfOz]

Moiser doesn't have them unfortunately. All we've got is an Amazon link and the link Deo posted above.

 

[Fruity_Grebbles]

Moiser doesn't have them unfortunately. All we've got is an Amazon link and the link Deo posted above.

Oh noooooooo. Thanks anyway.

 

[hazardousracerx]

I just found a very tiny Linux computer designed to be a very tiny router. I think it will work great for using in a portable that can load games through the SMB protocols since the board will run OpenWRT and can be setup as a native SMB server.

https://vocore.io/

Price is great at $25 USD (cheaper than a Pi) and size is perfect (smaller than the D-Pad of most controllers). It has built in ethernet, WiFi, USB host, and a MicroSD breakout/adapter.

 

[Minenash]

This is probably a very stupid question, but one of the major complaints of a lot of controllers are that the buttons are too mushy, so why are the orange one considered good? (Unless squishy means something completely different then I think it does)