Hey there, I am using the Arduino Zero board and i need to reduce the power consumption of my program. Initially I used de Low power library made by Arduino, but I got 30mA in stand-by mode, I don't think that's right. I tried setting the digital pins as outputs and disabling modules and peripherals and none of that worked. Any idea of what's happening? To power the board I'm supplying the 5v pin with 4.2V.

[image] rdeb11: tried setting the digital pins as outputs Why would that be any good? Please post schematics of the entire setup.

[image] rdeb11: Initially I used de Low power library made by Arduino, but I got 30mA in stand-by mode Typical results. More suggestions: Power down mode consumes high current - Using Arduino / Programming Questions - Arduino Forum It is wise to use the forum search to look for similar issues.

That worked for me with other boards but I guess not in this case. I don't have anything connected to the Arduino board, just the power supply tool connected via the 5V pin.

[image] mrburnette: Typical results. More suggestions: Power down mode consumes high current - Using Arduino / Programming Questions - Arduino Forum It is wise to use the forum search to look for similar issues. Thanks for your response, I tried isolating de 5V regulator and removing the power on led but I've only reached to 25mA in stand-by mode. Is that the lowest I can get with this board?

[image] rdeb11: I tried isolating de 5V regulator and removing the power on led but I've only reached to 25mA in stand-by mode. Is that the lowest I can get with this board? [image] Issue with the implementation of low-power library for arduino zero General Guidance I think you can't put the EDBG chip to sleep and I guess it has higher consumption than the SAMD. Above suggests that perhaps this board has limitations for low power operation. I do not have one to verify.

[image] rdeb11: That worked for me What is the project supposed to do? Give us the big picture. Else sub optimation might be the end resulting in more questions.

Sorry for the late response! I'm using an example from the Arduino Low Power library (externalWakeUp). It only uses de LowPower.deepSleep() instruction for entering to sleep mode. Now, without the power on led and isolating the 5V voltage regulator I get to 4mA (I'm supplying the board through the 3.3V pin). Is there something more that I can remove form the board?

Arduino Zero Low power

Projects General Guidance

mrburnette August 12, 2022, 2:52pm 7

Above suggests that perhaps this board has limitations for low power operation. I do not have one to verify.

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Arduino Zero Low power

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