Those that will be so lucky to be with us at the Rome Maker Faire later this week, will be able to put their maker hands on our very acclaimed (even if never really internationally showcased) … Open Wheels. The Open Wheels is a prototype for an open source clone / replacement of the very…
Controls the ignition of lamps or other electrical loads when the brightness of the environment falls below an adjustable threshold. There are circuits that never get old and withstand time, progress, and emergence and spread of a variety of microcontrollers and boards, perhaps because there is always a need of something simple, cheap and…
Today we introduce a great LCD expansion shield for Raspberry Pi that allows you to create an interface to control applications without the need to constantly keep a monitor, keyboard and mouse connected. Cool! Isn’t it? The enhanced value of a micro PC as Raspberry Pi with respect to a classic microcontroller is to…
In this post we’ll cover the design of a microphone preamplifier, something always useful when dealing with audio applications. This Mini Microphone Preamplifier could be used as the first stage to amplify any audio signal. The device is equipped with a microphone plus clips to be connected to a 9V battery. Amplification is achieved by…
In this post we will deal with an interesting solution to overlat text on a video signal. This solution, which uses the LM1881 integrated, has a lot of use cases accompanied by variable software challenges. For this reason this post is a kind of tutorial, presenting no vertical solution, but instead providing an overview…
RFID Tags are increasingly used for many applications such as identifying objects by means of a code or access control. In logistics RFIDs allows asset tracking, or monitoring conveyor belts; in shops tags are often used as anti theft. RFIDs are also used for presence detection and security, with several use cases, for example in…
Once again we have prepared some examples related to the GSM/GPRS & GPS shield. In previous posts we have seen how to handle SMS, make calls and use the GPRS connection to send email or download data from Internet pages. The shield has been developed to accommodate both forms of SIMComs: SIM900 and SIM908: the…
Today we present you a stereo 10 + 10 Watts audio amplifier based on TDA7297SA, a monolithic dual bridge amplifier that is suitable to be used in projects that feature access to a single 12 volts power supply. This is a compact stereo amplifier: its field of application range from car stereo to portable audiovisual…
Being really open source is no joke. Open sourcing an hardware product, usually goes through several major steps. The first one is usually verifying that all the software is really open source, Free to use and adapt and accessible. It’s very important to stress this point, there’s a big difference in freeware (and in general…
. The objective of this project is to build an Arduino voice shield to empower thousands of voice related applications! All this mostly thanks to an integrated ISD1790PY chip. This particular voice/TTS feature can be useful to integrate voice messages in alarm systems, to implement generic I/O controls in home automation or even in home…
Shield for Arduino designed and based on the module GSM/GPRS SIM900 or the GSM/GPRS & GPS module SIM908, to make calls, voice and data connections via GPRS. HARDWARE INNOVATIONS This new version (old Arduino GSM shield) has several new hardware features, that allow maximum customization and provide many configurations. We begin with the…
[iframe_loader src=”http://www.youtube.com/embed/11ydTnaXueA?hl=it&fs=1″ height=”349″ width=”425″ ] The idea behind this post is to bring together some robot designs and trasform them in a new device with new hardware and standard software (arduino of course) and so easier to use. These robots have three things in common: a mechanical structure, the hardware and the software. While the…
Open-Electronics.org is the brainchild of a world leader in hobby electronics Futura Group srl. Open-Electronics.org is devoted to support development, hacking and playing with electronics: we share exciting open projects and create amazing products!
Open-Electronics.org is not just a container of ideas: it is also a web site lead by a team of engineers and geeks who will take part in the discussions and give support.
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