Tag Archives: Servos

Jetson Xavier NX Lesson 10: Tracking Multiple Objects of Interest with Servos in OpenCV


In this lesson we learn how to use OpenCV on the Jetson Xavier NX to track an object of interest in with two cameras on two Pan/Tilt servo brackets. The system tracks based on HSV color space, but the same basic setup could be used with other object detection algorithms. In this project we are using the Jetson Xavier NX, which you can pick up HERE. You will also need to of the bracket/servo kits, which you can get HERE, and then two Raspberry Pi Version two cameras, available HERE.

 

Jetson Xavier NX Lesson 9: Tracking Objects with Two Cameras in OpenCV

In this lesson we use OpenCV to track an object of interest based on HSV color value. We are running two cameras in parallel, and track the same object in both cameras.  The code below is provided for your convenience, and is the code developed in the video lesson. If you want to play along at home, you can get your NVIDIA Jetson Xavier NX  HERE

In this lesson, we are running two raspberry pi cameras. I like the following ones and have verified that they work on the Xavier NX. You can pick your cameras up HERE.

 

 

AI on the Jetson Nano LESSON 32: Tracking an Object with Servos in OpenCV

In this lesson we actively track an object using the Jetson Nano, pan/tilt servos, and OpenCV. In order for this code to work, you need to first set up your servos, as explained in Lesson 31 on youtube. Make sure to follow the instructions on that lesson before trying to do this one, as that will show you how to get your servos connected and set up.

 

Arduino Tutorial 33: Understanding How to Control Servos with a Joystick

In this lesson we show you how to precisely control the position of two servos using a joystick. We derive the math equations which will allow you to get smooth and precise control of the servo. We also add a buzzer to the project to create an audible alarm when the button the joystick is pressed.

If you want to follow along at home, you can order the Arduino Kit we are using HERE.

Typically, the servos in electronics kits are not the best ones, but are suitable to learn with. If you want a more stable and better quality servo, this is the one I user in more of my projects: HiTEC

Below is the code we developed in this project.