Kalidomra wrote:1. It looks like there should be an external pull up resistor on GPIO16, not a pull down.
Kalidomra, I think GPIO16 has an internal pull-up as would be needed in order for a wake-up low pulse to function. Though I'm too lazy to go read the datasheet. The "Edit:" comment in the original post didn't make sense to me as a pull-down would defeat the low pulse... so I'm with you on that one.