✧✦Catherine✦✧Feb 28

pov: you wake up to receive a package with a vacuum chamber and discover that the vendor is a crackhead and a menace to society

this is a vacuum chamber. the power supply that comes with it has a type-C connector and it puts 12V on Vbus unconditionally. the pump works off both 5V and 12V, so it can pull vacuum off a normal type-C power supply. but the solenoid release valve (that lets you open the chamber once you're done) requires their illegal type-C-shaped power supply. also, not only does the chamber not support PD negotiation, it does not even have a CC pulldown.

to add insult to injury, it's using a NEMA 1-15P plug.

Show threadSnowFoxFeb 28
@whitequark It's mindboggling that USB C is somehow cheaper(?) than a barrel jack.
Show thread✧✦Catherine✦✧Feb 28
@snowfox I don't even know why they chose to build it this way. I think they wanted a right angle connector and right angle barrel jacks are pretty rare?..
Show threadJernej Simončič �
@whitequark @snowfox Does the device work with regular USB-C power supply (as in negotiates 12 V)? I remember seeing an almost identical thing a year or two ago, where the device did negotiate, but shipped with same kind of power supply.
Feb 28 at 1:25pmWeb
Show thread✧✦Catherine✦✧Feb 28
@jernej__s @snowfox it extremely does not and I checked it
Show thread✧✦Catherine✦✧Feb 28
@jernej__s @snowfox double-checked and it doesn't even have a CC pull resistor
Show threadEndlessMasonFeb 28
@whitequark @jernej__s @snowfox
I'm an abolitionist but you should call the cops
Show thread✧✦Catherine✦✧Feb 28
@EndlessMason @jernej__s @snowfox I'm an abolitionist too which is why I will disassemble it and replace the circuitry with a 12 V PD trigger
Show threadEndlessMasonFeb 28
@whitequark @jernej__s @snowfox
Restorative maintenance