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Re: Advice Reqd For Tools.
Posted: Tue Aug 12, 2025 7:46 am
by drogon
(USB-C allows negotiation of higher voltages, for power delivery (PD) up to 65W)
And for hobby projects, there are many little modules that have a USB-C socket and can provide various output voltages - assuming the input USB-C is capable - they are typically called "decoy modules" and some can have their output voltage changes by setting links or soldering pads.
e.g. modules like this
https://www.ebay.co.uk/itm/295636499200
but once you have the keywords to search for there are many options out there and this can make powering hobby projects a breeze.
You do need a good USB-C mains unit though - the cheaper ones just supply 5v but the full PD compliant ones can supply up to 48v at 5 amps.
As an aside, it's often reported that the mains units have more computing power inside them than the Apollo guidance computer...
-Gordon
Re: Advice Reqd For Tools.
Posted: Tue Aug 12, 2025 12:04 pm
by barnacle
As an aside, it's often reported that the mains units have more computing power inside them than the Apollo guidance computer...
Yes, but imagine the length of the mains cable...
Neil
Re: Advice Reqd For Tools.
Posted: Tue Aug 12, 2025 5:54 pm
by BigDumbDinosaur
Wondering how one gets 65 watts out of a USB port. At 5 volts, you’d need 13 amps flowing through those skinny little wires.
How many masters could do it though? Why not just have the iron plug into the mains, or at least use a wall wart.
Re: Advice Reqd For Tools.
Posted: Tue Aug 12, 2025 5:58 pm
by BigDumbDinosaur
As an aside, it's often reported that the mains units have more computing power inside them than the Apollo guidance computer...
Yes, but imagine the length of the mains cable...
Neil
...not to mention the problems with the cable getting tangled up with airplanes, helicopters and nut cases hang-gliding off precipitous slopes.