d9fb4f7401
Add an example using the RTC to help with a lower power design. This is a sister example to the existing "button-irq-printf", which is functionally identical, but uses far less power. There's more tricks that can be done to lower the power even further, but this shows a few of the early steps that can be done, using the RTC wakeup instead of a timer.
------------------------------------------------------------------------------ README ------------------------------------------------------------------------------ This is a small RTC example project.