Power consumption for NRF52832 SoftDevice v3.0.0

[kenearl]

Hi,

My apology if this question has been answered. I wonder if >2mA current draw for an APP with the following design considered normal consumption?

1. Custom GATT profile
2. Device Information Service profile
3. Advertising at 375ms
4. Power_manage() => Verified that the device goes to lp mode since my current draw was much higher when I commented out this function.
5. 3 additional software timer enabled
6. Power cycled to get out of debugging mode
7. Compilation optimised (-O3) and "Optimise for Time"

I still have other peripherals, e.g. SPI, TWI, GPIOTE, UART, which I have disabled for now to check the base current consumption with BLE on.

[Stian Røed Hafskjold]

The current plot looks pretty normal. I get 270µA in average. This consists of:

• Base current of 1µA. Which is System On IDLE (power_manage())
• An application timer (RTC) that wakes up the chip every 1ms. I don't know what the chip is doing every 1ms, but this consumes about 220 µA in average. I guess this is what you see on your measurements.
• The BLE event consumes 50µA in average. I can see that you are not enabling DCDC. Enabling this (if you have DCDC components) will probably reduce the current to about 30-40µA depending on payload.