Having troubles running Dynamixel AX-12A Servomotor with Arduino Uno

Other Hardware LEDs and Multiplexing
1

Hello all!

My project requires I run this Dynamixel servomotor. I decided to use the TX and RX pins for communication between the motor and the board. For now, I'm just trying to get the motor to run simple commands only using TX. I was basically following the instructions from this startup example. That same website also leads to a set of libraries needed for the servo to run.

My problem is actually getting my signal to communicate correctly. I started by checking my PWM signal between the motor and the Uno board and I get the following:

PWM output from board without plugging into servo:

4032×3024 1.04 MB

PWM Output from board with plugging into the servo:

4032×3024 1.01 MB

Does anyone have any idea of what's going on with this and what I can do to fix the signal between it?

2

When you choose which forum section to post this question, why did you choose "LEDs and multiplexing" instead of, for example, "Motors, mechanics and power"?

The TX pin on most Arduino is used for sketch upload and serial monitor. It's best to use another pin for communicating with components. Some Arduino, for example Pro Micro and Mega, have two or more hardware serial TX pins.

You mention a pwm signal. As far as I can make out, thess motors are controlled by serial commands.