Safe mode explained

[peekay123]

@hwestbrook, take a look here:

Safe mode - init output

Good morning. I made a shield for the photon. It has some digital inputs/outputs and 2 analog outputs. I have to initialize the analog outputs and 2 digital outputs to HIGH when the photon starts or goes into safe mode… how can I do it? Have I to rebuild the firmware? And in that case, what function I have to edit to do that? Thanks a lot Flavio