Why is the high current from the bluetooth(QN9020) connection?(QPPS.bin firmware )

[cemsahin]

Hi ,

I used minidk QN9020 development kit. I'm working on qpps.bin software. When the connection is established, the processor is using high current.(about 500ua) . Current is low in other applications. for example proxy reporter application is between 10 ua-50 ua. How can I drop the QPPs software current?

[gerardo_rodriguez]

Hello cem sahin,

The reason that the current is higher in the QPPS demo is because the interval between the connection packets is shorter than on other demos. To decrease the average current consumption, you can increase the connection interval so the MCU spends more time in sleep mode.

The connection interval for the QPPS demo can be modified by the following macro definitions in usr_design.c:

#define IOS_CONN_INTV_MAX 0x0010
#define IOS_CONN_INTV_MIN 0x0008‍‍

Regards,

Gerardo