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GPIO Pins on PCA1005 Blinky

Hi, and thanks for reading this, I'm currently able to power the PCA10005 by sending 3.3v to pin1 of p2, and pin5 of p2 to ground, with this setup I'm able to program the module but I'm currently unable to power an led at Pin23 of P2. I've tested the following code on the usb dongle and it works, I've also been able to get the HRM working on the PCA board. Should I be using an alternate means of powering the PCA?

// Set Pin 23 to output
 nrf_gpio_cfg_output(23);


while (true)
{
    nrf_gpio_pin_clear(23);
    nrf_delay_ms(500);
    nrf_gpio_pin_set(23);
    nrf_delay_ms(500);
}
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