What about food security
If you don’t eat food you won’t get food poisoning.
Readit Newssolarist commented on We should all be using dependency cooldowns blog.yossarian.net/2025/1... · Posted by u/todsacerdoti
solarist commented on We should all be using dependency cooldowns blog.yossarian.net/2025/1... · Posted by u/todsacerdoti
GitHub repo: https://github.com/dphilla/boxer
solarist commented on Attacking My Landlord's Boiler blog.videah.net/attacking... · Posted by u/ericvolp12
From the linked repo:
> rpitx is a general radio frequency transmitter for Raspberry Pi which doesn't require any other hardware unless filter to avoid intererence. It can handle frequencies from 5 KHz up to 1500 MHz.
Wait, how does that work?
1.5GHz is a _lot_, I can't imagine this is done with bit-banging an I/O line, nor do I expect the Pi will have a DAC with anything close to a 3GHz+ sample rate.
> Plug a wire on GPIO 4, means Pin 7 of the GPIO header (header P1). This acts as the antenna.
A bit of Googling shows me that on the later Pi board GPIO4 (pin 7) has a bunch of alternative modes, amongst which is a general purpose clock output (GPCLK0), a DPI output bit (DPI_D0) and what I recon is composite analog video in/out (AVEOUT_VID0, AVEIN_VID0), and the TDI JTAG pin. But none of these would get close to 1.5Ghz TRX capabilities, no?
What's the magic here?
RF is basically black magic but here it’s the harmonics of lower frequencies that are in GHz range (and very noisy and weak)
solarist commented on Attacking My Landlord's Boiler blog.videah.net/attacking... · Posted by u/ericvolp12
One doesn’t actually need any extra hardware for this… just 8cm of wire and this https://github.com/F5OEO/rpitx
(use at your own risk of course)