Reddit mentions of JBtek Male to Female USB Cable with ON/Off Switch - Easy Start/Reboot for Raspberry Pi & Arduino

https://www.amazon.com/JBtek-Male-Female-Cable-Switch/dp/B00UR321B6

Sorry for the long read but...

I have a 32GB Sandisk USB Drive connected to my PSTV. And I completely agree that it is a headache, i have to pull it to the front of my tv stand unplug it then plug it in just to mount it each time. It is very annoying but ive been considering buying a USB Power Switch like this one: USB Power Switch That’s just the first one that came up on amazon. But anything like that would be the fix possibly for it. As long as it thinks the PSTV doesnt have anything plugged into it. But it would be alot easier to flip a little switch on and off then unplugging a cord then having to plug it back in. The only concern i have is the speed of the transfers over said switch may be slower (may be USB 1.0 or 2.0) if it even has data transfer in it, not just power. All these things im not sure of but there is certainly one that is out there to help.

Sorry again for the long spiel i just wanted to get my point across.

It's likely that's an always on outlet. See if your car has an ignition only outlet and switch to that.. if not, you can buy one of these if you want to simply keep using the lighter outlet and USB. You'll have an option of turning it on/off without unplugging, but it's manual so you'll have to remember to do it.. I did that for a few weeks and then upgraded to hard wire to a ignition on/off fuse.. Spent 5 minutes on the project.. Used this and this with a A119S without an issue..

https://www.amazon.com/gp/product/B00UR321B6/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

This would help you with shutting your LEDs off during the night or if you get board of them.

Inline USB Switch I bought this switch for the usb fan I keep on top of my external 3TB HDD to keep it cool. Same reason, the fan doesn't need to be running when my xbox and HDD are off. Its a slightly less bulky solution you might consider.

You can over engineer a solution or buy

Switch: $6.99
Button - https://www.amazon.com/Raspberry-Micro-USB-Cable-Switch/dp/B00GGX94JI

Rocker - $5.99 https://www.amazon.com/dp/B00UR321B6/ref=psdc_464394_t2_B00GGX94JI

Plus a base adapter: $7.99 - you probably have one of these around your house though

https://www.amazon.com/Charger-Foldable-output-iPhone-Samsung/dp/B013US9FFY/ref=sr_1_17?ie=UTF8&qid=1481952517&sr=8-17

Keep in mind if you constantly pull power from a file system eventually you will have file system errors. Those can be fixed with efsck command. Google it if you encounter the issue ever or keep a backup image somewhere. I suggest you perfect it and do a dd of the card image. Look up dd command line for help there.

That Antec one is nice. The color temperature looks nice and I like that it's small and usb powered but apparently they don't have an on/off switch? Is there anyway to turn it off with software?


edit:

Did a little searching around and I think this would work.

Now if only you could control the color temp and brightness.

edit:

Found this which has three different white temps but no brightness adjustment.

Also if you search 'warm white led strip' you'll find some warmer colored LED strips that have brightness dimming but I haven't found any that have different white temperatures and brightness dimming.

I started with this but then switched to this so I could go multiple shows without recharging.

​

Other supplies as needed:

these take you from 5v USB to 9V

these reverse the polarity to work with most pedals

these take you to 18v if needed

this is good for keeping an eye on your current draws and I had one mounted on my board initially to keep track of battery life. The larger battery pack has a battery meter built in I just align to shine up through a hole in the board so I no longer mount the USB meter.

this is what I use as a power switch

With USB, if the device doesn't have a switch, your choices are software mute, or disconnecting the mic. You can do the second with an inexpensive switch:

https://www.amazon.com/JBtek-Male-Female-Cable-Switch/dp/B00UR321B6/

One of these cables did the trick for me, just gotta remember to switch it on/off when you enter or leave the car.

Excellent diagram. I even take it a step further. The NVR has has 2 NICs as you diagramed, but one NIC is usb wifi plugged into a usb hub with an on and off switch. This way I can turn off internet access to the NVR. I don't do remote viewing and only require internet access for the occasional driver download or to share the captured video with other computers. My dream setup would be openVPN server with port knocking and networkable on/off power switch for the usb hub.

I mean, there are cables with switches in them.
The case I have on the way has one built in.
Located here: Smraza 5 in 1 Starter Kit for Raspberry Pi 3 2 B with 9 layers Case, 5V/2.5A Power Supply ,1 pcs Fan, 3 pcs Heatsinks and Micro USB with On/Off Switch SW13 https://www.amazon.com/dp/B01LWURJMI/ref=cm_sw_r_cp_apa_.KFDzbTV4WHQR

Or, this is pretty cool too.

JBtek® Raspberry Pi & Arduino Male to Female USB Cable with ON / OFF Switch - Easy Start / Reboot ! https://www.amazon.com/dp/B00UR321B6/ref=cm_sw_r_cp_apa_dMFDzbSG5E427

https://www.amazon.com/JBtek-Male-Female-Cable-Switch/dp/B00UR321B6


No, but this is easier than plugging and unplugging. I used it for my bluetooth adapter in the r56, as the car shuts off aux power when starting and would cause it to reset and not always turn back on.

You are correct regarding the internet connection being required for the Chromecast.

What about an android box w/Plex installed? I don't have much experience with them, admittedly, but something like this might work: https://www.amazon.com/Greatever-Newest-T98-pro-Android/dp/B07786HKN2/ref=sr_1_5?s=electronics&ie=UTF8&qid=1518798925&sr=1-5&keywords=android+box&dpID=519PPlBu2fL&preST=_SY300_QL70_&dpSrc=srch

Then connect the android box to a battery pack: https://www.amazon.com/RAVPower-Portable-22000mAh-Li-polymer-Smartphone/dp/B01G1XH46M/ref=sr_1_4?s=electronics&ie=UTF8&qid=1518799026&sr=1-4&keywords=usb+battery+pack&dpID=31p6oM25MUL&preST=_SY300_QL70_&dpSrc=srch

Keep the battery pack charging via USB and also keep the android box connected to the battery pack. If you are concerned with draining your car battery you can use an on/off switch - same goes for draining the usb charge pack.

Two of these would be all you need to switch on/off when entering/exiting the vehicle: https://www.amazon.com/JBtek-Male-Female-Cable-Switch/dp/B00UR321B6/ref=sr_1_3?s=electronics&ie=UTF8&qid=1518798833&sr=1-3&keywords=usb+on+off

Sync to the Android box and enjoy offline...

EDIT: Sounds like your power to the battery pack is switched on/off by the key position, right? Then you could eliminate the first usb switch and not worry about draining your battery. Just turn off the switch between android and charge pack when exiting (overnight, for example) so you don't drain that pack.