I cant get the motors to respond to Servo.py

Lucullus · April 17, 2019, 3:38am

I cant get the motors to respond to Servo.py.

Here are some screenshots:

[Album] Layout

tatiana.andreeva · April 17, 2019, 8:41am

Hi @Lucullus,

Please run this example and post the output here.

Thanks!

Lucullus · April 17, 2019, 1:34pm

And should I strip the middle BEC wire for the last 3 ESCs?

Lucullus · April 17, 2019, 3:18pm

Lucullus · April 17, 2019, 3:24pm

I am apologize if I am making noob mistakes. I am fairly new to all of this.

Plus the motors make squeaky sounds.

tatiana.andreeva · April 18, 2019, 12:40pm

Hi @Lucullus,

Could you please try to run this example with connected servos, not ESCs with motors?
The example is designed for servo testing, it might be possible it won’t work for your current setup.

Lucullus · April 18, 2019, 1:25pm

I did try with a servo and it didnt respond. I inspected the pins with an oscilloscope and saw that it was outputting pwm. So i dont really understand how the servo cant respond.

tatiana.andreeva · April 18, 2019, 1:31pm

@Lucullus,

Please share a photo of attached servos.

Lucullus · April 18, 2019, 1:42pm

I just attached one but it is the right set of pins

tatiana.andreeva · April 18, 2019, 1:44pm

@Lucullus,

You need to supply the power on the servo rail.

Lucullus · April 18, 2019, 1:50pm

How would I do that? The middle wire doesn’t do that?

tatiana.andreeva · April 18, 2019, 1:58pm

@Lucullus,

You can power it from Navio2 UART port. Just connect 5V and GND wires to any of corresponding pins on the servo rail.

Note, that you don’t need to supply the servo rail additionally while ESCs with motors are connected.

Lucullus · April 18, 2019, 2:05pm

The esc are connected to the power distribution board but not to the pins as of now.

Lucullus · April 18, 2019, 2:06pm

And the servo is not attached to any of the escs

tatiana.andreeva · April 18, 2019, 2:59pm

@Lucullus,

When motors with ESCs are attached, the servo rail usually gets power from ESCs.

When you plug in servos, there is no power supply on the servo rail.
To power the servo rail, please connect the 5V and GND wires as it’s shown on the picture below:

Lucullus · April 18, 2019, 4:44pm

So I cant just plug in the Servos into the pins? I need a Servo Rail?

tatiana.andreeva · April 19, 2019, 4:07pm

Hi @Lucullus,

You can just plug servos to the pins. By servo rail, I meant PWM pins.

However, to make servo react on the PWM signal, you need to provide these pins with power.

system · July 31, 2019, 12:59pm

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