Has anyone played with the sleep modes using the Yun? My project uses a hall effect flow sensor. I'd like to use the power_down method but I haven't found anything that seems like it would work using the Rising or Falling Edge as a trigger. Research suggests the chip would support such an event trigger but it doesn't seem as though the configuration on the Arduino will support.
Thoughts?
Yun="arduino leonardo"+ AR9331
AR9331 consume more than 90% of power, and it has no support power down.
Should have been more specific. Was asking about sleep mode on the ATmega32u4 chip. The AR9331 can be powered down by soldering a jumper from one of the io pins to a test port on the back of the board and setting the io pin to low.
lexical43:
... The AR9331 can be powered down by soldering a jumper from one of the io pins to a test port on the back of the board and setting the io pin to low.
Url?
Yun in general is terrible at battery powered application since it use linear regulator for 5v to 3.3V, 34% energy is waste here.
"power down" <> "power off"
"power down" at embedded system mean a way adjustment CPU clock rate to reserve
energy.