Category Archives: Tutorial

Putting Text, Rectangles and Circles on Images in OpenCV for Windows


In the video lesson above we show how to add text, rectangles and circles to video frames using OpenCV. Below we include the code with we developed in this lesson. Enjoy!

 

ARDUINO TUTORIAL 68: Make a Remote Controlled RGB LED with Brightness and Color Control

This is our Remote Controlled RGB LED

In this lesson we take you through step-by-step instructions on creating a remotely controlled RGB LED.  This is the solution to the Homework Assignment given in Tutorial 68. It is important for you to try and complete this on your own before looking at my solutions.

We are building this with parts from our Elegoo Kit , and our actual build is using an Arduino Nano, which allows the project to be built on a single breadboard. You can get the neat jumper wires HERE.

This video steps you through our build.

Below is the code we developed in this video.

Arduino Tutorial 66: Controlling DC Motor, Speed and Direction with a Remote

Circuit for IR Remote Control of DC Motor

In this lesson we develop a project that allow Remote Control of the speed and direction of a DC Motor. We use an Arduino Nano, and components from the Elegoo Kit. Also, to facilitate a clean build, we use Straight Jumper Wires.

The motor is connected according to this schematic:

Connection Diagram for a DC Motor Controller using the L293 Control Chip

Also, the remote control receiver is connected as follows: R on Remote to 5V, G on Remote to Ground, and Y on the Remote to Arduino Digital Pin 9. Go back and check out Tutorial 65 if you need more details on the Remote Module Connections.

In this video we will take you step by step through the build and coding for the project.

The code below is the software we developed in the video.

 

Arduino Tutorial 65: Creating Useful Commands from IR Remote Buttons

Simple Demonstration of IR Remote Control of Arduino

In this lesson we show you how to map button pushes on the Infrared Remote Control to useful functions in the Arduino. This code can serve as the basis for using the remote control in many different applications.

We are building this with parts from our Elegoo Kit , and our actual build is using an Arduino Nano, which allows the project to be built on a single breadboard. You can get the neat jumper wires HERE.

The code developed in the video is available below: