Issue with Serial program

[hkarthik97]

I used serial program to talk between nrf52 and arduino where the rx tx pins were default 8 and 6.When i changed the pins to 25 and 26 it is not working i am not able to communicate. please help.

[awneil]

So what investigation and debugging have you done to find the problem?

What nRF52 board are you using?

Have you checked that there are no restrictions on using pins 25 & 26; eg, is anything else already connected to them?

Are you sure that you got Tx & Rx the correct way around?

Have you used an oscilloscope to see what's happening on the wires?

See https://www.avrfreaks.net/comment/2336161#comment-2336161 (and follow the links) for general tips on debugging serial comms

[hkarthik97]

I am using nRF52 Dev kit and the pins are not configured

[awneil]

hkarthik97 said:

the pins are not configured

So configure them, then?

And the other things:

awneil said:

Are you sure that you got Tx & Rx the correct way around

awneil said:

Have you used an oscilloscope to see what's happening on the wires

awneil said:

See https://www.avrfreaks.net/comment/2336161#comment-2336161 (and follow the links) for general tips on debugging serial comms