Hello Sirs
I am using NRF5340 chip in my custom board to use the BLE radio and uart hard ware at the same time. The sample code which has been used for this purpose is
peripheral_uart. I have also made several modifications to the original code to meet my application necessities. For example I have changed the baud rate from 115200 to
9600 and also increase the connection interval from 30ms-50ms default to 400ms. All of these things have been done successfully.
But by measuring the current consumption on my board I noticed that it's about 3.5ma in advertising mode and 10ma in connection mode. So for test purpose I ran the
Blinky sample code on my custom board and measuring the current it was about the 3.5ma. I think it is a too high current for my application because it will used up
the batteries very quickly. Because my custom board is battery powered I expect a current below 1ma for my application. Even by increasing the window interval of
100ms in advertising mode to 1000ms the current consumption didn't change. Is there any means by which I can reduce the current consumption or should I must
change the chip? For your information I have an nRF5340-DK development kit too. I ran the Blinky sample on this board and measured the current from external
battery compartment and the result was the same. It is about 5ma which is too high.
