search

WildernessLabs / Meadow_Issues

Public repo for bugs and issues with Meadow
15 stars 0 forks source link

Meadow in low-power mode still consumes about 30ma #295

Open Peter-Moody opened 1 year ago

Peter-Moody commented 1 year ago

Describe the bug Meadow in low-power mode still consumes about 30ma, which seems to be way too much for low-power mode.

To Reproduce Put Meadow FeatherF7 into low-power mode (AKA sleep)

Expected behavior Current should drop below 10 milliamps

alexischr commented 1 year ago

@Peter-Moody can we find out if that is mostly the ESP32 using the power? If so, at least this is an issue that that ESP sleep will resolve.

leehelzer commented 11 months ago

I'm seeing the same results as @Peter-Moody and would love to see sleep power usage 200ua range.
https://community.wildernesslabs.co/t/f7v2-platformos-sleep/1913

Peter-Moody commented 10 months ago

Note for implementation. In STM32F777 Ref Manual see top pp 137

The ADC or DAC can also consume power during the Stop mode, unless they are disabled before entering it. To disable them, the ADON bit in the ADC_CR2 register and the ENx bit in the DAC_CR register must both be written to 0.

IIRC there's a statement that these can consume 1.3 ma each.