Definitely have that resistor, a 1K, in there to keep the Esplora from "powering" the Uno when the Uno is unpowered.
I get Uno 'L' to turn on with an Esplora UP - but it won't turn off.
Definitely have that resistor, a 1K, in there to keep the Esplora from "powering" the Uno when the Uno is unpowered.
I get Uno 'L' to turn on with an Esplora UP - but it won't turn off.