In this simple project we will create a simple morse code flasher, you will use the serial monitor to type in a message and this will then be flashed in morse code on an LED. If you wish to learn …

In this example we will connect an LM35 temperature sensor to our Arduino The LM35 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. The LM35 thus has an advantage over linear …

On one of my recent visits to an electronics website I saw this voltage sensor, intrigued I bought it and wondered how it worked, there didn’t seem much to it. As an Arduino is limited to 5v maximum on its …

The Pulse Sensor Amped is a a plug-and-play heart-rate sensor for Arduino and Arduino compatibles. It can be used by people who want to easily incorporate live heart-rate data into their projects. You gently place the sensor on any area …

In this example we will connect an L298 to our Arduino and drive a motor. A switch will change the direction of the motor The L298 is an integrated monolithic circuit in a 15-lead Multiwatt and PowerSO20 packages. It is …

I have a few examples of interfacing a PC to an Arduino over the com port, typically you use a program written in a language such as VB.net or C# and either send or recieve data back and forth. One …

In this example we fit the Digit shield to our Arduino Uno and then connect the HC-SR04 ultrasonic module as per the previous example You can read about the digit shield here   Requirements HC-SR04 Ultrasonic module Arduino Uno and USB cable …

This was a module that I bought called the SPI RGB 5V 4xSMD 5050 LED Light Module for Arduino. Sadly I could not find a great deal of information for it but eventually got it to work. Looking at the …

WS2812 family is a intelligent control LED light source that the control circuit and RGB chip are integrated in a package of 5050 components. It internal include intelligent digital port data latch and signal reshaping amplification drive circuit. effectively ensuring …

In previous posts we showed some examples for the 4067 16-Channel multiplexer – Arduino and 4067 LED example The HCF4051 device is a monolithic integrated circuit fabricated in MOS (metal oxide semiconductor) technology available in SO-16 and PDIP-16 packages. The HCF4051 analog …

In a previous example we used the 4067 to flash some LEDs – Arduino and 4067 LED example but you can also use the CD74HC4067 multiplexer / demultiplexer to read analog values from all 16 channels. This gives you the ability …

One of the fun things about Arduino’s is coming up with projects to use Arduino’s and various sensors or modules. In this project I was thinking about an example that would detect the presence of a person. In the world …