Use the blue LED as status LED. This prevents the blue LED from
being always-on and draining the battery. Instead use it as status
LED with blink patterns as other companion devices do.
Signed-off-by: Frieder Schrempf <frieder@fris.de>
According to the documentation and experiments on other boards using
NRF52 + SX1262 this reduces the power consumption significantly. This
assumes that the hardware actually has the inductor for the internal
DC/DC regulator populated which is very likely. Even if not, it won't
hurt.
Signed-off-by: Frieder Schrempf <frieder@fris.de>
This is a key difference compared to other systems and I see people
asking this a lot. It is mentioned in the FAQ but let's make it more
prominent in the README.
Frieder Schrempf