ESP32 Forum

Posted: **Tue Nov 29, 2022 12:07 pm**

hi,
our device esp32-wroom-32d is consuming around 300uA current in deep-sleep mode with the accelerometer sensor attached(iis3dwb) with it. We have separately powered down the iis3dwb sensor and ULP-coprocessor, still result remain same. We are using SPI communication for the sensor. How we can decrease the current consumption ?? (up to 30uA is acceptable ).

Posted: **Thu Dec 01, 2022 12:35 am**

Custom board schematics could help us.
Did you turn off wifi and/or ble before deep sleep? Did you turn off power domains before deep sleep?

Posted: **Thu Dec 01, 2022 3:24 pm**

Is your board a custom-made one? If yes, you can post your design here: https://www.pcbway.com/project/questionpublish
Many PCB experts visit this forum. Hopefully, some of them will be generous to figure out if there is any fault in the design that is causing higher current consumption.

Posted: **Tue Apr 11, 2023 7:14 am**

the problem was solved by pulling up the SPI MISO,MOSI AND CLK pins by an external pullup. Sorry for late response.

ESP32 Forum

current consumption in deep sleep mode of esp32-wroom-32 .

current consumption in deep sleep mode of esp32-wroom-32 .

Re: current consumption in deep sleep mode of esp32-wroom-32 .

Re: current consumption in deep sleep mode of esp32-wroom-32 .

Re: current consumption in deep sleep mode of esp32-wroom-32 .