nRF51822 turn on- turn off led uart i code not work

[John henrry]

Deat all,

nRF5_SDK_12.3.0_d7731ad\examples\ble_peripheral\experimental_ble_app_blinky\pca10028\s130\arm5_no_packs

I use app "nRF connect for mobile" : I send CM : turn on led 24  -> Led 24 on , Turn off led led 24  -> led 24 off.

achievement : i get the result on the uart  screen  "turn on led 24" and "Turn off led led 24" but LED 24 not work. please help me to solve the problem

#define LEDBUTTON_LED1 24

at uart_event_handle : i code

if (index >= 14 && strncmp((const char*)&data_array[index - 8], "turn on led 24 ", 14) == 0)

{  

 nrf_gpio_pin_set(LEDBUTTON_LED1);

}

if (index >= 14 && strncmp((const char*)&data_array[index - 8], "turn on led 24 ", 14) == 0)

{  

 nrf_gpio_pin_clear(LEDBUTTON_LED1);

}

thank you,

Im sorry my english not ok.

[Jørgen Holmefjord]

Hi,

Have you configured the pin as output before you try to set it?

nrf_gpio_cfg_output(LEDBUTTON_LED1);

Best regards,
Jørgen

[John henrry]

thank you for your reply, i have set that pin as output.

[John henrry]

i put it in the wrong place, i put the code in this function and it worked : nus_data_handler. it work ok

and i have more questions.

I have 2 nRF51822 where 1st nRF51822 acts as BLE Central and 2nd nRF acts as ble_Peripheral. Both devices connect to each other. now 2nd device ble_Peripheral i want to remove connection with 1st device and connect to 3rd device(acting as BLE Central) th device just press button and scan 3rd device and connect , and save the connection to the 3rd device.
Please help me solution or reference.

Best regards

[John henrry]

it is same as remote, i take a new remote and scan the connection, it will forget the old remote, and the central device remembers to connect to the new remote
and will not connect to the old remote.

[Jørgen Holmefjord]

Please post your new question in a new ticket, as it does not relate to the topic of this thread. That way it will be easier for other customers to find the answer to similar questions.