Access your microcontroller from anywhere in the world (Part 1) Microcontrollers are an amazingly cheap way to automate and control the world around you, but in a world where a Wi-Fi connection is available almost anywhere it has not always been as proportionally cheap to get your microcontroller project connected to the outside world. That…
Access your microcontroller from anywhere in the world (Part 3) Basic server example In this example we are going to configure the module as an access point so that Wi-Fi clients such as PCs, tablets, or smartphones can directly connect to it. We can then serve a very basic web page to the connected client….
Access your microcontroller from anywhere in the world (Part 2) Requesting a web page over a TCP connection Now we are connected to the world, let’s try requesting a web page from a website on the internet (Google). First we need to connect to the server that will be serving the page we require using…
Taking temperature readings with a microcontroller may seem confusing at first sight, especially if you’re new to Arduino. In this tutorial, we simplify this as much as possible. We will use an inexpensive LM35Dz temperature sensor, a few cables and an Uno. You will need: LM35DZ Temperature Sensor 3 x Male to female Cables An Arduino development…
Creating a simple connection between an LED and a light sensitive resistor. In this tutorial, I’ll use two inexpensive components (a LED and a Light Resistor) and create two circuits which will work together thanks to an Arduino. You will need: Breadboard LED LDR (Light Resistor) 5 x Jumper Cables 1 x 220ohm Resistor 1…
One of the most common uses for microcontrollers is for interfacing to various sensors to monitor the world around you. With an Arduino board you can read the value from a temperature sensor and output it to a computer in a matter of minutes. But what if your Arduino and sensor needs to be remotely…
Using an inexpensive component to play notes using your Arduino. In this tutorial we’ll be using a passive buzzer and an Arduino to play a series of notes. You will see that the sketch loops the main sketch so that the notes continue to run over and over (void loop). At the start of the…
Items you will need: Arduino development board such as this one Male to female dupont cables 3 Colour RGB LED Module What does it do? This is a simple example of how to use the Hobby Components RGB LED module (HCARDU0021). The module has 3 separate LED’s (Red, Green & Blue) which Can be individually…
Creating your own libraries can be time-consuming. We’ve created a library for various keypads and thought we’d share this, along with an example sketch to prove it works 😉 You will need: Matrix Keypad (for this example we’ll use a 4 x 4) 8 x Male to Male Cables Your Uno In order for…
Building your own hardware is always fun, especially when it’s combined with the Arduino platform. For this product a combination of the two are used to create something that’s both fun and useful. The Sketch Pad is a kit of parts which includes a custom PCB that when soldered together creates an Arduino compatible development board including the…
