Any notable sources of useful, salvageable tech that normal niggers throw away because they're either too stupid to fix or don't care? Not talking about sources of meth metal or shithole scrappers.
If you do any sort of hardware projects, there are many reusable, serialized parts, that you can pull from such things that won't be associated with your purchasing history.
One such item that is commonly overlooked are the wifi modules used in smart TVs and wireless printers. Bluetooth modules are also used in some other devices, these can probably be salvaged as well. Most will have datasheets online so you can find out how to integrate them into your project.
>>3659 >Most will have datasheets online so you can find out how to integrate them into your project.
Most don't though. Most modern ICs have NDAs and the plausibility of a company making a large order as requirementes for getting the datasheet. Sometimes the manufacturers can be tricked into sending it to you (for example by telling them some employee was supposed to send it to you and you didn't get it), but not always.
The only stuff that's actually reusable is basic components (transistors etc.) and you'll get misc shit so you'll have to adapt your circuits to what you have.
The only stuff I think could be worth building with discrete components is audio and RF hardware.
Get an RTL-SDR stick, a fl2k VGA stick, build an RF amplifier, and you've got a decent transceiver which could cover a wide range of frequencies depending on the amp, with the disadvantage that you'll need a computer so it's not a good option for a SHTF situation, and there will be a large latency in both receiving and transmitting.
You can actually build a whole SSB transceiver with discrete components, with the disadvantage that you'll need lots of crystals, one for each approximate frequency you want to transmit on. Or you can buy a frequency synthesis IC, but that defeats the point of using junk heap parts.
>>3659 Mechanical tech? Lawnmowers, line trimmers and other gasoline-powered equipment. If you know where to look you can find tons of free, undamaged stuff that just needs a carburetor clean or valve adjustment. I make some pocket change by doing that in my free time and reselling the working machines.
>>3659 I've found the NDA wall mostly applies to ICs that deal with DRM or proprietary technology. This would usually be something like a customized microcontroller in a printer or media streaming device. Most of the ICs that deal with open standards, say USB, don't seem to be hidden behind NDAs.
The other non-NDA issue are Chinese fly-by-night custom ICs that are mass-produced for one cheap product and then never seen again. These are probably just counterfeit designs, but use a different label.
>>3774 >I've found the NDA wall mostly applies to ICs that deal with DRM or proprietary technology. This would usually be something like a customized microcontroller in a printer or media streaming device. Most of the ICs that deal with open standards, say USB, don't seem to be hidden behind NDAs.
How many devices actually have a single chip to deal with the USB interface? Very few I bet. Most just have one or a few inscrutable microcontroller or ASICs with the USB controller integrated into it.
> The other non-NDA issue are Chinese fly-by-night custom ICs that are mass-produced for one cheap product and then never seen again. These are probably just counterfeit designs, but use a different label.
>one cheap product
No such thing when it comes to China. Their designs are copied, sure, they're copied and recycled as similar products with different brand names for decades, but the chips are copied/bought/lended/stolen from companies in their own country. They can't copy shit from companies outside China because to reverse engineer a chip is more expensive than to design it themselves.
>>3659 old sat-tv and cable-tv gears can be a source for RF components
CRTs if you need high-voltage transformers
washing-machines if you need pumps or electrically controlled valves. also probably some relays
refrigerators for vacuum pumps
>>4047 One source I've seen that have standalone USB hub modules are LCD monitors that have more than two external USB ports. These are probably not as common anymore since "slim models" with external power bricks are increasing in popularity. The integrated USB hub models were sold with "easy access to the USB ports" in mind. From what I've seen, these are usually a separate daughter board that connects to the main board for power, other than that they are self contained.
I see your point on the separate bus controllers being rare, but as you mention, they are typically integrated into the MPU or an ASIC. ASICs will be garbage no-matter-what unless they have freely available non-NDA datasheets (or you spend the time to externally profile them).
>>They can't copy shit from companies outside China
Many of those companies are fab-less and send their IP to other places. There's also a good stream of Chinese college student interns to steal shit, probably happens more than you think. Large companies can't actually make chips using stolen IP, but some fabless fly-by-night in China can do a contract run of a bunch of chips and give the wink and nod to certain local manufacturers that it's the same IC as so and so. I highly doubt ODM from China give a crap about anything other than if it works.
Old home routers, modems, and the like might actually be okay if you need a SoC. If you can get Open-WRT on it, it might open up some opportunities.
From what I've been reading, trying to design a SoC board from scratch is just not worth the time or money. Since most SoCs are high-density BGA chips, they require multi-layer PCBs that are prohibitively expensive to make for small-batch/one-off runs. Then there's the external, high-speed memory that needs special routing of the traces. The big picture is that the whole process is complicated and will require multiple prototypes and revisions, so compared with buying pre-made modules, it's just not worth it.
Any notable sources of useful, salvageable tech that normal niggers throw away because they're either too stupid to fix or don't care? Not talking about sources of meth metal or shithole scrappers.
If you do any sort of hardware projects, there are many reusable, serialized parts, that you can pull from such things that won't be associated with your purchasing history.
One such item that is commonly overlooked are the wifi modules used in smart TVs and wireless printers. Bluetooth modules are also used in some other devices, these can probably be salvaged as well. Most will have datasheets online so you can find out how to integrate them into your project.
http://archivecaslytosk.onion/7zPs3
https://alexkaltsas.wordpress.com/2014/07/22/hacking-a-printerss-wifi-module/