Hello Michel,
Problem is that I need more components to be able to generate the
interrupt
I would have used simple diodes that are OR'ed together to the external
interrupt pin.
and believe it or not, it actually used more current.
Actually, I don't see that happening with diodes, do you? OK, if your
sources have different voltage levels you need shifters and these
require current, of course.
Standby mode means the processor is in sleep mode but wakes up about 8
times per second to check the sensor. The sensor only uses 2uA but the
processor uses more current in sleep than in deep sleep mode, so all
together it is 10uA.
Have you played around with the configuration bits? I once realised that
a silly enabled Brown-Out detect (which makes no sense with
battery-powered devices) takes up almost all the current.
Sorry if this has been mentioned before, but which processor do you use?
Best regards,
Jens
In deep sleep, the processor is completely powered down, only the RTCC
continues running. It can only be awakened by an external interrupt
(push button rather than motion sensor).
Michel
On Apr 21, 7:23 am, jb-electronics<[email protected]>
wrote:
Looks very good!
Total circuit power is about 10uA during standby mode and 2uA during
deep sleep.
Deep sleep will be entered after a standby time-out to save battery
life. Clock will still run in deep-sleep mode.
I am curious: Do you use an external interrupt to wake the processor in
case of a motion etc? This might be useful and could avoid the "standby
mode" altogether.
Jens
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