Raspberry Pi operating at 4Vdc
This is taken with a true RMS FLUKE multimeter. No Scope at the time, so can't comment on ripple. Measurement taken at TP1 and TP2.
Load = bog standard Dell USB keyboard and optic mouse, Ethernet and HDMI, Debian OS running.
Power Supply = HTC Desire phone charger
Cable = cheap coiled lead off ebay, so quite possibly losing some voltage across the cable
Debian operates fine, able to run Geany, Terminal and file explorer while completing exercises from "learn python the hard way" without a hitch!
