Category: Tutorial | Page 5 | DroneBot Workshop

I2C Part 2 – Build an I2C Sensor

In our second look at using the I2C bus we will build our own I2C sensor, one that has four ultrasonic distance sensors.

We’ll also learn about the protocol used by I2C communications

Programming the Arduino Pro Mini

Learn how to use and program the Arduino Pro Mini, using an FTDI adapter and the Arduino IDE.

We will also use a 3.3-volt Pro Mini to build a battery-powered robot arm controller for the MeArm

I2C Communications Part 1 – Arduino to Arduino

This is the first of a series of articles about using I2C. Today I will explain what I2C is and show you the Arduino Wire Library

We will run two demonstrations. The first demo will show you how to exchange data between two Arduinos using I2C. The second demo will describe how to control an LED on a slave Arduino with a potentiometer on a master.

Using Rotary Encoders with Arduino

Rotary encoders are versatile devices that can be used both as controls and as measurement tools.

Today I will show you two ways of using rotary encoders – as a control for a servo motor and to measure RPM on a gear motor

SD Card Experiments with Arduino

SD and microSD cards are a simple way to add huge amounts of non-volatile storage to your Arduino designs. In this article, I will show you how to use SD card modules with the Arduino.

I will also show you how to record and playback the motion of a servo motor.

Using a Real Time Clock with Arduino

Table of Contents1 Introduction2 Real Time Clocks2.1 Unix Time3 DS1307 Real Time Clock3.1 Tiny RTC Board4 Tiny RTC Basic Arduino Hookup4.1 Arduino Hookup4.2 Arduino Libraries4.3 SetTime Sketch4.4 ReadTest Sketch5 Tiny RTC Square Wave Interrupt5.1 Programming the Tiny RTC Square Wave

Control Large DC Gearmotors with PWM & Arduino

Pulse Width Modulation, or PWM, is an excellent method of controlling DC motors, however controlling large gearmotors can be expensive and difficult – but it doesn’t have to be.

Today I will introduce you to an inexpensive yet powerful H-Bridge motor driver, the Cytron MD10C.

In addition, we will see how altering the PWM frequency can improve performance tremendously.

Using OLED Displays with Arduino

OLED displays are bright, lightweight and visible under a wide range of lighting conditions. They are available with both I2C and SPI interfaces and in this article, I’ll show you how to hook up and use both types with an Arduino.

In addition, we will build an Arduino OLED Temperature and Humidity Meter using an OLED and an I2C temperature and humidity sensor.

WiFi Stepper Motor Controller

The WiFi Stepper is exactly what its name would imply – a board that lets you control a stepper motor via WiFi. Its full-featured web-based interface gives you complete control of your motor, and it can support steppers of all sizes up to 85 volts at 10 amps!

Today I’ll demonstrate how to use this versatile board. I’ll hook it up, learn how to use it and even run a simple Bash script on a Raspberry Pi to demonstrate how to incorporate it in your programs.