Unable to control GPIO pins in nRF51422

RE: Unable to control GPIO pins in nRF51422

Joakim Jakobsen — Thu, 29 Jun 2017 10:31:45 GMT

Happy to help! I can see you have another question about the OLED display. I suggest you provide the details thats been asked for and wait for a reply there.

RE: Unable to control GPIO pins in nRF51422

YASH — Thu, 29 Jun 2017 09:53:35 GMT

Thank you so much. Can you help me on how to interface an OLED display 128x32 spi with nRF51422?

RE: Unable to control GPIO pins in nRF51422

Joakim Jakobsen — Wed, 28 Jun 2017 12:50:31 GMT

Hi Verma.

I don't know excactly what you want to do with the LED. But i assume you want it to light up. The easiest way to control the LED is to use the nrf_gpio interface directly.

Configure the pin as an output: nrf_gpio_cfg_output(pin_number)
Turn on/off the LED:

nrf_gpio_pin_set(pin_number)
nrf_gpio_pin_clear(pin_number)

If you want it to blink, I suggest you take a look at this tutorial, which sets up a timer that toggles an LED.

Best regards

Joakim