We are testing a stripped down 3.5″ hard drive to see if it will 1) act as a good gyroscope and 2) run on an 18V battery pack for 2.5 hours…
We have been using an old ATX power supply to power the drive on a tether and a quick google introduced the “paperclip trick” where you short the only green pin with one of the adjacent brown ground (COM) wires to turn the PSU on… This means no more need to have an old motherboard connected to the PSU just to get power flowing. Pretty nifty!
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