Does anybody know what is the EN pad for?
In case it help, below is the Photon’s schematic with the TP:
Does anybody know what is the EN pad for?
In case it help, below is the Photon’s schematic with the TP:
To disable the 3V3 SMPS regulator…
Why don’t you just use the reset pin ?
Controlling the EN pad is like cutting off power to the MCU and other devices using the 3V3 power line. Really depends on how you want to approach the problem
If I’m trying to emulate the reset button on the Photon (so that I can put the device in “safe mode” for example), is it better to connect the external button to the RST pin or to the EN pad?
Between the reset pin and ground. That is exactly where the on-board reset button is.