Today we introduce a I/O expansion shield for Raspberry Pi which allows you to extend the number of digital inputs and outputs available for our applications. [See also our previous I/O expander for Arduino] After having published the LCD display and GSM expansion shield we add to the collection a new shield, based on the…
Single and double channel 433.92 MHz Receivers able to be matched to a maximum of 10 transmitter each. Monostable or bistable. Specifications – Number of outputs: 1-2 – Output Mode: Monostable, Bistable – Power supply: 12 V DC – Power consumption: 40 mA max. – Memory: 10 codes per channel – Encryption: MM53200/HT-12 …
The series of posts devoted to the OpenWheels platform continues with the description of the processes related to the verification and management of the data collected from the sensors through a dedicated telemetry software . At this point in the project, OpenWheels board is widely tested and ready to work with its firmware. It…
Today we’ll expand Arduino’s digital resources thanks to an I2C bus equipped shield and we’ll allow the management of the board via a bluetooth connection RN-42 through an Android systems. All Arduino boards feature a number of digital I/Os. For the simplest projects, such resources are usually more than sufficient, but in those where they…
During the months spent developing OpenWheels, we worked hard to achieve a firmware that was both functional and fast. We used float type variables only when it was strictly necessary and we implemented a system interrupt to manage, with the right timing, the stabilization operations. We did not skimp on protection systems and diagnostic messaging…
Here comes the third post regarding our amazing OpenWheels: the Segway inspired open source and DIY two-wheels vehicle. For those who stumble upon this post for the first time, please check the launch here and the whole list here: https://oe2.open-electronics.org/tag/openwheels/ With this post we get more into the specifics of Openwheels and we’ll talk extensively about the electronics…
[youtube id=”WMfVr5Jlt_E” width=”620″ height=”360″] Openwheels is fun! See me (Boris Landoni) happily driving the OpenWheels at Rome Maker Faire 2013 Here comes the second post regarding our amazing OpenWheels: the Segway inspired open source and DIY two-wheels vehicle. For those who stumble upon this post for the first time, please check the launch post here….
(This is the second post of the OpenWheels series. See all the posts by clicking here) As you may know, the invention of the SegWay is due to Mr. Dean Kamen who, noting the difficulties faced by a man in a wheelchair in just climbing a sidewalk, spotted the possibility of a vehicle that…
In the past months we presented the Arduino Yun and Arduino Galileo boards. Today we present you a new board, quite more powerful, but still Arduino compatible and powered with GNU/Linux. It’s an all Italian board called UDOO. Indeed, now almost every month we see the birth of a new platform that integrates processors capable…
Once experimented with REST technology and with the “Bridge” communication mode, we can introduce a project that achieves something difficult so far with an Arduino board: writing a web page, to be run by Linino’s internal web server uHttpd, to manage the pins of Arduino with REST, but via a web page. We will show…
With this short guide we release today, we will explain you how to use your Arduino Yun to do something that was never accomplished before with a board of such family. We’ll face a real embedded project, with its set of sensors and management and control applications. Thanks to our experiment shield (more info), you’ll manage…
[youtube id=”5H85RDA5HEw” width=”620″ height=”360″] Today we present a mod of Dotklok, the product that we presented few months ago , with new features such as reading ambient temperature and controlling display brightness based on the ambient light. The whole thing can be controlled remotely via a standard TV remote control. Open firmware and hardware have…
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