Dear all,
For a time I have the raspberry pi ver2 to play a bit around with it. Your board looks quite good for what I would like to do. I have no experience in these kind of electronics. But I would like to use the 1339 chip http://www.idt.com/products/clocks-timing/application-specific-clocks/real-time-clocks-rtc-ic (http://www.idt.com/products/clocks-timing/application-specific-clocks/real-time-clocks-rtc-ic) and use it's 2 alarms to put on the raspberry at a certain time and to put it off at a certain time. Is it possible to use these alarms to put on and off the rapsberry with your on / off switch (button) at your board? And is there a way to use a supercapacitator or battery to give power to these boards (chip and your board).
Thank you for your help and advice.
Kind regards,
Helversteijn
You would have to power the RTC separately. ATXRaspi is powered directly from uUSB so it has power all the time, waiting for a button press event. You can simulate a button press from firmware, but that will be a little complicated. Your RTC would have to have the intelligence to send out a negative/GND pulse to ATXRaspi to wake it up. So I would not even try that if I were you. Maybe a custom ATXRaspi version that has an RTC could do it, but that would require a more complex controller (different chip, with extra firmware). I suspect you also want to be able to change the schedule so it gets complicated fast.
ATXRaspi is really designed to be manually operated where a SSH login is not available.
You can probably find a way to use wake-on-LAN on the Pi...