[mythtv-users] How turn on / off external box

Tyler T tylernt at gmail.com
Tue Aug 3 02:01:12 UTC 2010

> You can buy low-cost hall effect chips for a $1 or so.  Add a PIC or
> something like that, and you could monitor the current draw.  Have your
> device report the current draw and then the app could make the decision.

How about a photodiode taped to the Power light and interfaced to a
flow control pin on a serial port?

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