Solution of the "Challenge 1" (Nordic tutorial)

[TheRaven]

Hello,

I used this tutorial : devzone.nordicsemi.com/.../

But I can't resolve the "Challenge 1" (write 4 bytes on the characteristic). Can you explain me, please ? :-)

Thanks a lot !

[Petter Myhre]

I recommend doing the tutorial with the example files provided, or else at least this challenge doesn't make sense, because challenge 1 and 2 shouldn't be a problem while you get trouble with challenge 3.

What is len? Is it 4?

Also you have to change the max length (attr_char_value.max_len) of the button characteristic value.

[TheRaven]

Ok, I will do it. Yes, now, I've put len equal to 4. And I replace : uint32_t ble_lbs_on_button_change(ble_lbs_t * p_lbs, uint8_t button_state) by : uint32_t ble_lbs_on_button_change(ble_lbs_t * p_lbs, uint8_t button_state[4])

And now, it seems it works :-) (I'm going to do some tests to see if it always works good). Thanks !