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…
Today we present an overview of today’s market offering regarding ARM RISC microcomputer able to run a GNU/Linux distribution. And once again, this is just the beginning. While the growth of such a device segment was predictable, it wasn’t easy to predict such an explosion. In fact we now have an heterogeneous set of…
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…
As many of you know, just few months I had the chance to co-host the first Open Source Hardware Documentation jam in New York. It was an event dedicated to grow more interest from the Open Source Hardware community and the community at large to the topic of documentation, especially thinking about how this enables…
Electricity costs are rising, and just in case this is not enough, if you exaggerate with consumption your house circuit often stops working in the very moment of your greatest need. This project allows you to keep an eye on your electricity instant consumption even remotely. [iframe_loader src=”http://emoncms.org/boris&id=2505 ” ] The acquisition of current consumption…
Xavier Auffret is a former telecommunication engineer who decided to reorient his work toward industrial design in order to get closer to human consideration. Xavier is now finishing his industrial design studies at ENSCI-Les Ateliers, in Paris. He is the designer, together with two other designers of the first Jerry and co founded the non…
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…
It’s always tricky when you create something: a complex project, a commercial product or just an hack and then you must decide what license you should use for that, for releasing it to the public. The discussion regarding licensing open electronics or hardware in general has been carried on for years now, and many points…
This post follows a first one in which we presented some tips about how to tune printing (with 3Drag but also in general). Here you’ll find 5 more cool 3D prints to experiment with! Porcupine Vase This is an easy print difficulties, with reduced printing times, but it’s. It belongs to the category of…
Lately, many entrepreneurs are switching their attention from the traditional software and web market towards the very promising hardware market. A growing access and a growing ecosystem of startups and bigger companies are, in fact, starting to reach that tipping point in which you have products and services growing on several of layers and eventually…
This scalability mantra we have been used for years now is not getting us anywhere. I’m sick of this build – grow – exit thing. Building the next web startups is not going to make any big difference in the world: we have social networks, blog platforms, we have sites for sharing pictures, we have…
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.
Our mission is to become a reference Open Source hacking site with ideas and feedback aimed to enrich the community.
