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My current project is a self-heated mug that I have already asked about in another issue here: #1637
Problem is: I could not come up with a nice way of powering down the project, as it's battery powered and behind a water tight enclosure after assembly. So no real possibility to add a good switch, at least none that I could think of up until now without maybe adding another MOSFET circuit that I would like to avoid.
My thought was:
the batteries are quite beefy at 4000mAh nominal. If I power down the Pico as much as possible, the batteries should be able to survive a few days.
How much do you think I can power down the Pico with the available methods ? I included a push button on the reset that I can push through the enclosure, so I don't care about the Pico crashing or not responding on WiFi anymore. I only want to get the draw down as much as possible.
One way that does seem to decrease consumption to at least 1/3 (while loosing communication) is the following:
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My current project is a self-heated mug that I have already asked about in another issue here: #1637
Problem is: I could not come up with a nice way of powering down the project, as it's battery powered and behind a water tight enclosure after assembly. So no real possibility to add a good switch, at least none that I could think of up until now without maybe adding another MOSFET circuit that I would like to avoid.
My thought was:
the batteries are quite beefy at 4000mAh nominal. If I power down the Pico as much as possible, the batteries should be able to survive a few days.
How much do you think I can power down the Pico with the available methods ? I included a push button on the reset that I can push through the enclosure, so I don't care about the Pico crashing or not responding on WiFi anymore. I only want to get the draw down as much as possible.
One way that does seem to decrease consumption to at least 1/3 (while loosing communication) is the following:
Any other ideas like manipulating registers to turn of oscillators as much as possible ?
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