ble_app_uart sleep current consumption

[eyss5]

I'm using nRF52 DK to develop a BLE/UART application. My code is based off of the ble_app_uart peripheral example. In both my code and the default code, I get -0.1uA on the PPK during sleep, so not very useful. Haven't been able to debug it.

I've attached the .hex files for both my firmware and the default firmware. Can someone check the sleep current on both and let me know what they get? My code goes to sleep after 10s, buttons turn it back on. Default code takes 3min before sleep. Thanks in advance!

ble_app_uart_pca10040_s132-modified.hex

ble_app_uart_pca10040_s132.hex

[Vidar Berg]

Hello,

The PPK does not have the accuracy or resolution to accurately measure the precise System OFF current. For that, I would recommend using a good DMM and measure the current on the 52DKs P22 header.

Here is the result I got with your 'modified' hex:

For reference, the typical expected System OFF current is specified in the nRF52832 PS here: Current consumption, sleep