On 5 Jan 2021 22:54:36 GMT, Tim Streater 
declaimed the following:


>The Pi carried on being powered. After dismissing the possibility of sentient
>self-powered computers taking over, I discovered that the volts were coming
>via the HDMI port.
>
 https://en.wikipedia.org/wiki/HDMI look at the pin-out... Pin 18 is
intended to provide power for "active cables"
https://www.hdmi.org/spec/hdmi2_1 https://www.hdmi.org/spec21sub/cablepower


--
 Wulfraed                 Dennis Lee Bieber         AF6VN
 wlfraed@ix.netcom.com    http://wlfraed.microdiversity.freeddns.org/

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