I'm trying to get into embedded systems programming and I have to choose a development board.
I also have a little project I'd like to implement. I'd like to make a kind of countdown/timer that I will use as an alarm clock. This is a project I think could teach me a lot of things, and I also really need an alarm clock that doesn't stop blinking until I get up (so that, as soon as I open my eyes, I know if it's time to get up or not).
Anyway, I have two questions, that are related. I'm going to need to power the device with a battery. Can it be done? If so what kind of battery and battery holder do you advise ?
More importantly, can this development board can be powered on battery without any led turned on? I want to use this device at night, as an alarm clock, and I have trouble sleeping with even the slightest ammount of light in the room. So I want to make sure it's possible to have it running during the night without it emitting any light. Most development boards I've seen seem to have a kind of power status led that can't be deactivated and I'd like to know if the MSP-EXP430FR4133 is an exception to this rule.
Thanks to all.