Hi,
I'm looking for the simplest way to shut down RP2040.
I have run once and done data sampling application which runs for about 10s. I then need permanently go to sleep until I reboot it.
I have no need wake_on.... whatever, and don't want to mess with all that.
It currently ends with while(1); which obviously working as fast as it can.
Now the code is tested I'm running off a v. small LiPo and need to conserve charge.
I connect the LiPo to 3V3 with a diode to drop the cell voltage to a safe level for the RP2040.
I've read this chip does not have a really low power state but I'm not looking at leaving alone 6mo, it's just to stop burning watts in a stupid loop when the sampling stops.
TIA.
I'm looking for the simplest way to shut down RP2040.
I have run once and done data sampling application which runs for about 10s. I then need permanently go to sleep until I reboot it.
I have no need wake_on.... whatever, and don't want to mess with all that.
It currently ends with while(1); which obviously working as fast as it can.
Now the code is tested I'm running off a v. small LiPo and need to conserve charge.
I connect the LiPo to 3V3 with a diode to drop the cell voltage to a safe level for the RP2040.
I've read this chip does not have a really low power state but I'm not looking at leaving alone 6mo, it's just to stop burning watts in a stupid loop when the sampling stops.
TIA.
Statistics: Posted by pie_face — Sat Nov 01, 2025 2:51 pm