On Thu, Apr 04, 2019 at 12:18:56PM +0200, David Given wrote: > Provided the E3 and the USB device ran off isolated supplies, you might be > able to get away with connecting the 5V (or whatever) on the USB adapter to > the GND on the jack. That would cause the logic levels to be interpreted > inverted.
I'd have thought that would make the USB dev see the E3's 0V - 5V as 5V - 10V, and the E3 to see the USB's 0V - 5V as -5V - 0V. Which doesn't sound like it helps - am I missing something? Sean _______________________________________________ e3-hacking mailing list e3-hacking@earth.li https://www.earth.li/mailman/listinfo/e3-hacking