int main(void)
{
uint32_t counter = 0;
nrf_pwm_config_t pwm_config = PWM_DEFAULT_CONFIG;
pwm_config.mode = PWM_MODE_LED_255;
pwm_config.num_channels = 4;
pwm_config.gpio_num[0] = LED_1;
pwm_config.gpio_num[1] = LED_2;
pwm_config.gpio_num[2] = LED_4;
pwm_config.gpio_num[3] = LED_3;
// Initialize the PWM library
nrf_pwm_init(&pwm_config);
while (true)
{
// Update the 3 outputs with out of phase sine waves
nrf_pwm_set_value(0, sin_table[counter]);
nrf_pwm_set_value(1, sin_table[(counter + 25) % 100]);
nrf_pwm_set_value(2, sin_table[(counter + 50) % 100]);
nrf_pwm_set_value(3, sin_table[(counter + 75) % 100]);
counter = (counter + 1) % 100;
// Add a delay to control the speed of the sine wave
nrf_delay_us(8000);
}
}
void ADC_IRQHandler(void)
{
// Clear the END event
NRF_ADC->EVENTS_END = 0;
// Read the ADC result, and update the PWM channels accordingly
uint8_t tmp = NRF_ADC->RESULT;
nrf_pwm_set_value(0, tmp);
nrf_pwm_set_value(1, 255 - tmp);
// Trigger a new ADC sampling
NRF_ADC->TASKS_START = 1;
}
void SetFanSpeed(uint8_t duty_cycle) //Changing the duty-cycle of motor when the fan is openning
{
nrf_pwm_set_value(0,duty_cycle);
}