DFRobot 5 DOF Robot Arm – Building the Robotic Arm

Robot arm with controller

The DF Robot 5 DOF Robot Arm kit is a high-quality robotic arm that you can assemble yourself. With heavy duty servo motors and sturdy aluminum parts this inexpensive arm is perfect for your robotics experiments

Follow along as I assemble the robot arm. I’ll also build a simple robot arm controller based on the Arduino Nano and the PCA9685 16-channel PWM module.

Getting Moving with XOD – Robot Car Part 1

XOD Robot Part 1

XOD is a method of programming an Arduino using a graphical IDE instead of writing code. In XOD you use a collection of “nodes” connected by “links” to program your Arduino.

In this second installment on our series on XOD I’ll show you some ways of improving your XOD projects by using multiple patches, custom nodes and XOD libraries.

But the real fun is that in this article we’ll also start working on a practical project – a XOD robot! So let’s get started.

Using the HC-SR501 PIR Motion Sensor – With Arduino & Raspberry Pi

HC-SR501 Motion Sensor

The HC-SR501 is a Passive Infrared (PIR) motion sensor that is extremely useful. It can be used all by itself or combined with an Arduino or Raspberry Pi

In this article you’ll learn how a PIR sensor works and you’ll build some cool projects using the HC-SR501. You can even make a motion activated camera that will tell you who is stealing your Jelly Beans!

Build a Robot Car with Speed Sensors

Robot Car With Speed Sensors

I’m sure you have seen those inexpensive robot car chassis kits, the ones that come with two 6-volt motors. They are great fun and very useful and they even come with a couple of speed encoder disks (those little black circles full of holes). Problem is, no one tells you how to use them!

Let’s resolve that and build a robot car with speed sensors. Along the way we’ll learn how to use Interrupts, a valuable programming technique.

Using the HC-SR04 Ultrasonic Distance Sensor with Arduino

HC-SR04 Basic Hookup

The HC-SR04 Ultrasonic Distance Sensor is a staple in robotics projects. This inexpensive device is capable of measuring the distance between itself and the nearest solid object from 2 to 400 centimeters. Exactly what you need to keep your bots from driving into walls!

In this article we’ll look at this sensor in depth, including ways to make it even more accurate by compensating for temperature and humidity. There’s lots of Arduino code to be has as well, so dig in!