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
I2C Part 2 – Build an I2C Sensor
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
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
In addition, we will build an Arduino OLED Temperature and Humidity Meter using an OLED and an I2C temperature and humidity sensor.
Experiments with the RCWL-0516 – Doppler Radar Distance Sensor
The RCWL-0156 is an inexpensive yet useful proximity sensor that can be used on its own or with a microcontroller like an Arduino Uno.
The device is unique in that it uses microwaves and Doppler Radar to detect moving objects
In this article I will show you how the device works on its own and how we can add an Arduino (or two) to create some useful projects
From Arduino Uno to ATmega328 – Shrinking your Arduino Projects
Learn how to transfer your Arduino Uno projects onto an ATmega328 chip so you can build a permanent version without sacrificing your Uno.
In this article I will show you a simple Star Wars Music Box project that can be built on an Arduino and then transferred to an ATmega328
Elegoo Robot Car Part 3 – Collision Avoidance & Line Following
The Elegoo Smart Robot Car is an Arduino-based design with an impressive list of features
In the final installment of this series, I show you how to use both Collision Avoidance and Line Tracking with the Smart Robot Car.