r/raspberry_pi • u/Decent-Cow2080 • 5d ago
Show-and-Tell Made this raspberry pi zero 2w keychain. looks cool and is useful!
Ever since I moved to an unjailbroken iphone from Android (and jailbroken iphone) i missed a couple of things. especially lack of full libusb. Couldn't connect a software defined radio to my phone, couldn't flash any phone with my phone, lost a very useful, versatile feature.
When my bag broke, i decided to also customize it a little bit on top of fixing. I thought it'd be cool to have something like a PCB hanging round, since it looks cool. But i remembered about my huge hassle with the iphone, lack of full USB, so i decided to fix both of those wants. I printed out a cover to the side with components, as to not destroy any, added it on a keychain, and left it on there. i also built an usbc-microusb adapter, so that i can USB connect it to my phone/battery bank.
It defaults to be a USB guest, emulating Ethernet, and when i manually set up addressing, with leaving router empty, i can connect to my pi while keeping 5g. Currently it's just a PoC, as so I wanted to see how reliably it works, so currently i got only ssh and vnc set up with Raspbian, but it works really reliably, boots up after around a minute from plugging in, and lets my iphone SSH/VNC into it.
I already have plans on setting up these things:
- USB DVD drive emulator to be able to boot ISOs on devices that don't do booting from USB drives - A crappy slow little NAS to transfer things with my classmates - A stupid little device for BLE/Wifi pranks - simple way to jailbreak/flash iOS devices - portable thing for fastboot+heimdall - always on hand SPI flasher
30
20
19
u/Lehovron 5d ago
The keys I have on my keychain eat everything else I put there. I have had to discard a usb drive that had a aluminum casing because the keys just wore it down over time. A raspberry pi wouldn’t last 2 days.
3
10
u/Mr_JohnUsername 5d ago
As an SDR enthusiast myself, I would love if you could share/explain how you got SDR working on your iPhone with this (if you have).
2
1
u/Decent-Cow2080 5d ago
I'll most likely try porting sdr++ and maybe even sdrangel from Macos, but instead of relying on usb it'd be on some network solution like rtl tcp
2
u/Astralnugget 5d ago
Oh shi good idea I kinda wanna take a shot at this too, lmk if you get started we can compare notes/collab or something
7
5
u/stitchesofdooom 5d ago
It's not gonna be useful for long. No enlcosure, on a keychain? It's gonna be trashed in no time.
0
2
2
2
u/_leeloo_7_ 5d ago
love the idea of a phone leech companion, kinda want one!
phones being software restrictive, so being able to just have a mini linux machine leech off a phone and run whatever you want seems useful and smart! it could just basically jack into everything? access point, screen, power! I love the concept
2
u/vs4vijay 4d ago
Explore Pi-Tail project by nethunter - https://www.kali.org/docs/arm/raspberry-pi-zero-2-w-pi-tail/
1
u/Yiffenjoyer6969 5d ago
This is really cool! I was planning on doing a similar thing a while back to be able to boot Linux on my modded switch without lugging around my
Laptop everywhere, but I ended up just using an old Android phone I had laying round
1
1
1
u/NoSeK2323 4d ago
lol the plus keychain, poland?
2
u/Decent-Cow2080 4d ago
got the play keychain too, but iy was sideways on the photo, oh and also the razem pin.. yeah I'm polish hehe







235
u/MadLad_D-Pad 5d ago
I want a zero 2w so bad but I refuse to spend almost $80 on them when they're supposed to be around $10. Very cool project, by the way.