Why can't I control single servo motor with Jetson Nano external Power Supply?

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

I was going through the forums and someone mentioned that I would need to use a servo motor driver such as this one: Adafruit 16-Channel 12-bit PWM/Servo Driver - I2C interface [PCA9685] : ID 815 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits to control my motor with Jetson Nano. However, I don’t get why I can’t just use an external power supply and connect the servo to Jetson Nano GPIO. I only need to control a single servo motor and thus I have no need for a servo motor driver. Does anyone have a reason why?

3

hello greatmanokonkwo,

please share more details,
for example, what’s the voltage input of your servo motor; what’s the hardware connections you’re used.
thanks

4

Did you refer this link?

1 Like
5

I am using an external 6V power supply. The power supplies positive terminal is connected to servo motor VCC. The negative terminal is connected to the servo motor GND as well as jetson nano GND. Finally, servo motor PWM is connected to pin 32.

6

Thanks! Do you know how I could reconfigure device tree.

7

please also refer to Configuring the 40-Pin Expansion Header to configure GPIO pins with Jetson-IO.