Useless, you just put the line mentioned in the documentation to bypass PD checks.Hello,
@FTrevorGowen : I have shortened the cable to ~60 cm - half the length of the official PI PSU.
I own no oscilloscope, unfortunately.
@kip_the_elder & pidd : this buck converter is to be capable of 30A, so let's assume 15 is a pessimistic actual value.
@pidd : whether the limmit is set or unset makes no difference.
I forgot to mention : I have used a USB multimeter to monitor the PI's consumption, and the power never reached more than 1.5 A, with voltage from 5.11 and 5.14 V. Which mlakes me feel really puzzled.
But all this s till doesn't answear my question : will a 5.1k resistor between CC wire and GND tell the PI it is powered by a PD capable PSU and let it draw all the power it needs, or will it be useless in my case ?
I don't want to dismantle the official PI's PSU to see the way it is built. Not even sure it would help me.
As long as your PSU 'setup' doesn't use PD to deliver more than 3A...
The Pi5 can tell you the Voltage it is seeing itself (see documentation), though it cannot show you the current.
Statistics: Posted by bensimmo — Sat Feb 08, 2025 4:50 pm