this post was submitted on 31 Jan 2025
22 points (95.8% liked)

Privacy

33156 readers
429 users here now

A place to discuss privacy and freedom in the digital world.

Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.

In this community everyone is welcome to post links and discuss topics related to privacy.

Some Rules

Related communities

much thanks to @gary_host_laptop for the logo design :)

founded 5 years ago
MODERATORS
 

Hey everyone, I hope you are well.

I recently purchased a TP-Link Archer C7 from a thrift store for 4 dollars and converted it into a pineapple router using a firmware build that someone made based on Open-WRT for testing and educational purposes, and it it has raised a few other thoughts and interests.

I have two questions.

  1. Is anyone aware of a software available through F-Droid or otherwise which can be used to turn a phone into a temporary access point serving FTP for file sharing purposes? I think it would be handy to be able to share files to several people in proximity and I would imagine turning a phone into a mobile FTP AP would be something that has been done. If anyone is aware of any such project, I would be highly interested.

  2. For running such a thing whether it be through a phone or a router, is anyone aware of a mobile power source which can fit in a backpack easily and power a 12 volt 1.5 amp router for ~10 hours?

I would love to be able to have the ability to basically have a backpack that acts as a mobile NAS that serves FTP/SFTP.

Thanks.

top 11 comments
sorted by: hot top controversial new old
[–] [email protected] 7 points 10 hours ago (1 children)

1.5 A for 10 h is 15000 mAh, at 12V. Current powerbanks can do that. Here is a redmi one, specs says it can do that, 20000 mAh, 12V is the maximum: https://www.mi.com/global/product/20000mah-redmi-fast-charge-power-bank/specs

Buy an usb-pd 12V cable, one end of the cable is type c, the other end is standard dc coax. The cable has a chip inside, so it will always ask for 12V from the power source, it's like 5 USD, I have one for a similar usecase, works perfectly. They work only if the source can send the required voltage, if a powerbank can only send 5V or 9V it cant convert it up to 12.

It should look something like this, make sure the voltage is correct before buying:

[–] [email protected] 2 points 2 hours ago

Awesome, Thanks!

[–] [email protected] 15 points 16 hours ago (2 children)

I read this, thought "that's gotta be something you can do in Termux", searched it, and sure enough; that's something you can do in Termux.

[–] [email protected] 2 points 1 hour ago

sshd is like the #1 reason I use termux. Sure, one can "survive" with adb shell but... what a pain. Setup termux then sshd then bring on your toolset, from nodejs to whatever else you need. Making your Android device a "real" computer at last!

[–] [email protected] 10 points 15 hours ago

Awesome! This is just what I was looking for! Thanks!

[–] [email protected] 8 points 16 hours ago* (last edited 16 hours ago) (2 children)
[–] [email protected] 10 points 15 hours ago

Wonderful suggestion, I have an older raspberry pi and a libre sweet potato and i know i could achieve this with those, but I was hoping there was a project out there that would let anyone with a phone do it! I think this would be an excellent way to get people interested in torrent and libre software, because if someone shows up to a location and all it takes is attaching to a wifi access point and then downloading files, it feels very simple and easy to become engaged with it.

Thank you nonetheless though, I think this is wonderful suggestion!

[–] [email protected] 7 points 16 hours ago

and if you want to go even cheaper get an esp32 board with an sd card slot (i like the tdongle from lilygo) and it can just serve yhe sdcard files meow

[–] [email protected] 7 points 16 hours ago (1 children)
[–] [email protected] 6 points 15 hours ago (1 children)

True, they are typically 12 volt aren't they!

I just took mine out of my car for an unrelated issue haha, totally valid suggestion!

[–] [email protected] 7 points 15 hours ago

They make little ones for stuff like motorcycles and tractors. Just make sure it’s 12v, because atv batteries are 6v I think.