Servo MG996R With nRF52840

[Muqarrab]

Hi,

I am working on the MG996R servo and MG90S with nRF52840.

I am using the following delay logic to operate MG90S. (As per datasheet)

For 0 Angle

NRF_LOG_INFO("0 Angle");
nrf_gpio_pin_set(Lock_PIN);
nrf_delay_us(1000);
nrf_gpio_pin_clear(Lock_PIN);

nrf_delay_ms(1000);

For 90 Angle

NRF_LOG_INFO("90 Angle");
nrf_gpio_pin_set(Lock_PIN);
nrf_delay_us(1500);
nrf_gpio_pin_clear(Lock_PIN);
nrf_delay_ms(1000);

For 180 Angle

NRF_LOG_INFO("180 Angle");
nrf_gpio_pin_set(Lock_PIN);
nrf_delay_us(2000);
nrf_gpio_pin_clear(Lock_PIN);
nrf_delay_ms(1000);

MG90S is working perfectly fine. But MG996R create some issues (not moving correctly).

So is there any servo library or .h file so we can use angle logic as available in Arduino.

////////  Available in Arduino

for (pos = 0; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees
                                                          // in steps of 1 degree
myservo.write(pos);                           // tell servo to go to position in variable 'pos'
delay(15); // waits 15ms for the servo to reach the position
}
for (pos = 180; pos >= 0; pos -= 1) { // goes from 180 degrees to 0 degrees
myservo.write(pos);                          // tell servo to go to position in variable 'pos'
delay(15);                                          // waits 15ms for the servo to reach the position
}

Thanks in advance.

[awneil]

Muqarrab said:

But MG996R create some issues (not moving correctly).

What "issues", exactly?

In what way(s) is it not "correct"?

What have you done to verify that your code is actually generating the correct timings?

Have you looked at the Arduino code to see what it actually does?