Hi,
I'm trying to lower the power consumption om an Actinius Icarus board which uses an nrf9160 chip. I've been able to achieve a sleep current of 1.33mA and I'm not able to lower this any further. Could you please let me know what else I could do to lower the power consumption?
My setup -
- Board - Actinius Icarus
- NRF Connect SDK - v1.2.0
- Modem FW - 1.1.1
- Sim - External NBIoT Sim card from 1nce which uses Deutsche Telekom band 8
- Antenna - Ethertronics penta 1002292
- Input - 4x1.5V batteries supplied to the Vin pin
- Current measurement - Multimeter inserted between batteries and Vin
- External peripherals - Using a 10k NTC with a 10k pullup voltage divider circuit connected to A1 for temperature measurement
Things done to reduce power consumption -
- Disabled logs in the project and SPM-
CONFIG_CONSOLE=n
CONFIG_STDOUT_CONSOLE=n
CONFIG_LOG=n
CONFIG_SERIAL=n
CONFIG_UART_CONSOLE=n
- Enabled power management -
CONFIG_SYS_POWER_MANAGEMENT=y
CONFIG_DEVICE_POWER_MANAGEMENT=y
- Enabled PSM with these parameters (Also with different p-tau like 10 min, 1 hour, etc)
CONFIG_LTE_PSM_REQ_RPTAU
="11000001"
CONFIG_LTE_PSM_REQ_RAT="00000001"
- Removed bootloader -
CONFIG_BOOTLOADER_MCUBOOT=n