I’m designing a device using the Dash with several peripherals (display, battery backed RTC, accelerometer, sound player). To facilitate shipping and air travel, I plan to put a power switch between the battery/power supply and the Dash to cut all power when it’s off. Generally, powering on the Dash seems to start the firmware running, though I have to do some more testing.
Anyway, has anyone else tried something like this? I’m particularly wondering if connecting both the battery and external power at the same time through a switch could cause problems (I’m planning to use a DPST switch on the positive side of both sources).