Let’s find out how to make a phone switchboard equipped with all the most advanced features, by using a Raspberry Pi as hardware and Asterisk as software. Part one. The term VoIP, which means “Voice over Internet Protocol”, refers to a group of technologies used to transport voice using the Internet-based IP protocol as…
The latest initiative by BBC to teach anyone how to code, from 0 to 99-year-olds… and beyond. BBC (British Broadcasting Corporation) created the tiniest microcomputer that they will offer free of charge to every English student aged around 7, with the purpose to increase, in the most simple and widespread way possible, the…
This small project is composed of a small pin hosting all the necessary components, namely, a battery, a switch, and two RGB LEDs. Once the switch is closed, LEDs turn on cyclically starting with red, and then lilac, violet, blue, green, yellow and restarting with red light again. The question is that,…
Here we take advantage of Telegram bots for the development of a thermostat that may be controlled from a smartphone, by means of simple instant messages. Even though social networks and instant messaging services established themselves and spread rapidly, in the last years, many people do not go any further from Whatsapp and…
It is based on the DFRobot module, and enables the playing of musical tracks that have been recorded on a microSD or on a USB Pen Drive; it is supplied with outputs that enable to connect it to the AUX socket, the one most Car Audio Systems are provided with. Car Hi-Fi systems –…
Let’s add a graphic touch display to our Arduino-like boards, with dedicated hardware and three libraries. After showing you four prototyping boards from the Fishino series (UNO, Fishino 32, MEGA, Guppy… and the fifth is on its way!), we started to feel the need to propose some electronics on the side. In particular,…
Our Arduino compatible board Fishino acquires a new functionality, upload and updating of sketches over wireless, without the need of a wired connection. Being able to program the Fishino board on the field, without physically connection to the USB port of a computer nor being limited to the IDE Arduino/Fishino, that was one of…
Let’s create a portable touchscreen all-in-one PC, to be used both as a portable computer and as a platform for the field development of applications, thanks to the integration of peripherals and to the access – from the outside – to Raspberry Pi’s expansion connector. The computing power and the rich equipment of peripherals…
Based on Time of Flight technology, the module provides information to a microcontroller regarding distance detected in front of its optical sensor based on time-of-flight of a light impulse. Contactless distance measurement, therefore employing electronics instruments, is a problem to which technology has been provided various solutions over the years; from a solution…
How to make an electronic business card that says something about you. For people working in the electronics business, especially for manufacturing companies of printed circuits, it is now fashionable to give away your business card engraved on a PCB. Starting from this idea, we went beyond and ask ourselves: “Since…
Let’s prepare the G-code, starting from the Gerber file, so to finally print our PCB. In the previous installment, we left you after having analyzed the hardware that enables us to manage our CNC by means of whichever modern computer that is not supplied with a parallel port (as long as it supplied with…
We melt metals using the ZVS (Zero Voltage Switching) technique, applied to a 1000 W RLC resonant circuit. Have you ever wondered how powerful the electric-magnetic fields around us can get? The question is fitting because nowadays we have a lot of examples showing how we are surrounded by countless electromagnetic waves, due…
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