ANT+ power consumption problem

[hongpal]

Hi Nordic

I am using sdk 14.2.0 version and s332 soft device. Now I have completed the bicycle speed cadence code that works with ble_ant. It worked well as I wanted. But the problem was in power. Record 1 mA when power is measured using ppk before connection. When connected, record 100μA. I want to reduce the power consumption in the default state before the connection is established, ie the channel is only open and no value is received. What can I do? I am sorry that my English ability has fallen. I would appreciate your reply.

[Petter Myhre]

I see. I think the picture above explains it very well. When you open the slave channel it will start to search for a master channel, when found it will lock into the master and the power consumption will go down. The only way to reduce it is to not open the channel, but then of course not master will be found. You can use a timer and reduce the duty cycle of the search, but then it will potentially longer until a master is found. You can also consider using some kind of external trigger to start the search. I'm not sure if that is suitable for your application.

[hongpal]

Thank you. I understood and applied it. I finished successfully.