[FeatureRequest] Program alarms etc through light sensor

[krekr]

I've been following this project for some time and recently got a hold of a A158WA, the metal sibling of the F91. It occurred to me that most 'sensors' would be very gimmicky in nature (temp, accel, etc.). No offence. But if you could get a light sensor (LDR or similar) in there, and could get light to it when mounted inside the watch, you'd have one-way communication possibilities.

The protocol could be similar to the provisioning sequence that Electric Imp (IoT devices in SD-card form factor) uses ("BlinkUp") https://developer.electricimp.com/platform-overview

This would open up a host of interesting possibilities; programming alarms through a nice GUI on a smartphone or laptop, sync with calendars, upload new info for 2FA etc.
I could design the board, but the firmware is beyond me. I'd be interested to know if others see this as useful as well.

[tandy-1000]

This sounds like a really useful feature!
I write Nim code and would be able to help add firmware support for this :)

[krekr]

Cool. I could do the hardware and send a version to you. This would be quite low-prio for me, but I'll let you know how it goes.
Any other people interested in this as well?
Do you already have a sensorwatch btw?

[tandy-1000]

Awesome, that's fine, I don't actually have a sensor watch yet so that will give me some time to procure one :).

[bademux]

Well, it can be acceptable tradeoff for #52

There are great news and looks like I need to learn how to obtain my light sensor for TOTP config.
Or maybe receive files over irda for new FS.
Is it possible to put IR receiver\transmitter? @joeycastillo what do you think.