In the previous episode, we have described the library and the functions made available by it. Now we will introduce a series of sketches through which you will see in practice how the library works and it’s potential. The sketches will implement functions such as receiving or sending SMS, voice calls, managing certain generic…
Let’s discover a useful library to manage various low-cost GSM/GPRS modules, in order to provide cellular connectivity to our Arduino projects. Second part. In the previous episode, we introduced the shield hardware and exposed the technical features and possible applications, as well as mentioned the library for Arduino, here we complete the previous speech…
It supports various low-cost GSM/GPRS modules in order to provide cellular connectivity to our Arduino projects. First part. Given the growing demand for electronic equipment with connection to the GSM/GPRS network, we decided to develop a new GSM shield for the Arduino and Raspberry Pi 3 platforms, capable of supporting various modules on…
The latest robot from Waveshare, it adds interesting features to the qualities of its predecessor. You were able to appreciate the instructional robotics platform on wheels called Alphabot, in an article dedicated to it, and you were able to see it in its version with Arduino controller. Alphabot, we remind you, is a robot…
A robotics development platform based on a two-wheel mechanics plus pivoting wheel on which you can prototype applications, controllable with popular Arduino Uno, Raspberry Pi 3 boards or both. Robotics is one of the most engaging parts of electronics because it can combine different fields of knowledge and skills in the same project; in…
[bctt tweet=”Based on the Fishino UNO board, a simple and funny project to join practicality and fun together controlled from the “Blynk” app” username=”OpenElectronics”] Based on the Fishino UNO board, a simple and funny project to join practicality and fun together. We are going to build a robot on wheels controlled from the “Blynk”…
Let’s get practical with some examples of combinations of sensors working at different voltages and references for the A/D converter of Arduino. Third and final part. After getting to know and having studied in details the ADC contained in the ATmega328P microcontroller which is equipped with Arduino Uno board’s and more, and after having…
Let’s go deeper into enhancing techniques for ADC reading and let’s take a look at the first practical examples of analog data reading coming from sensors. Part two. In the first part of this tutorial we have introduced the functioning of Arduino AD converter, which is associated to the input pins A0÷A5 (ANALOG…
Let’s step into the word of analog-digital conversion for Arduino, by discovering how the dedicated pins work and how to use them for acquisitions. Part one. In the ADC of Arduino, an analog signal ranging from 0 to 5 V is translated in 10-bit code, which is 210 = 1024 combinations, with a…
A virtual shield and a smartphone, with the addition of ultrasound sensors that allow us to detect passage and direction of anyone crossing a passage. Most of Arduino’s success is also due to the fact that the base features of this board can be expanded by simply adding shields, which are boards containing hardware…
A Bluetooth enabled remote that will help you control one or more IR-controlled electric payloads. In this post, we are going to present a project for emulating an IR remote control composed of a RandA board (an Arduino that has connectors to interface with Raspberry Pi on one side and connectors for…
Let’s create an electrically controlled lock that is opened by means of an always different code that is generated by our smartphone, on the basis of an algorithm that takes the time into account. If you are a customer of an online bank, you will probably be using a device named “token” already,…
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