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…
It is a truly rare and exciting treat when a fellow Maker pours their heart and soul into a work that radically enriches the Maker Community as a whole – and even more so, when it’s both free and open source. Ultimate Arduino Handbook creator, Mark Maffei has done exactly that under a Creative Commons…
Recently, all modern laptops, smartphones, and tablets come with built-in digital video cameras. There also web-cameras, video-nannies, actions cameras and much more. Many of them are capable of shooting 4K and Full HD videos, and thus might come at a price. Besides, ready-to-buy cameras might not have all the options you need. Thus, let’s create…
Here we complete the overview of the free 3D modeling and editing software by creating modular models that can be assembled together. OpenSCAD is a free 3D modeling software whose strength is the capability of creating more “technical” rather than “artistic” objects, those requiring precise measurements, well-defined geometries and obtainable by repeating or replicating similar…
Who prints 3D objects needs a 3D modeling and editing software to create and edit files; a good example is OpenSCAD, that is also a nice resource to modify and process most of Thingiverse files. With “3D modeling” we mean the design of a three-dimensional shape, the generation of the model and its representation in a digital format readable by a computer; It is generally…
Introduction In this short document by RobotFactory, we will try, within the limits of our knowledge and of course more objectively possible, to identify what are the parameters distinguishing the various stereo lithographic 3D printers on the market at this date. The parameters that allow people to be able to make a serious comparison…
In this second “episode” (here the first one), we will go deeply inside Fishino features, showing the main libraries and code sketches. In the last post we have presented the Fishino UNO board, compatible with Arduino UNO but offering WiFi connectivity, a microSD slot and a built-in RTC. In this second post we begin describing…
When the standard model is not enough, you can “stretch” the printer to print objects up to 400x200x200 millimeters. Here’s how to make the change. To print great objects, you need a great printer -and our 3Drag is great- but if you want to print three-dimensional objects that are oversize, then you need…
Let’s experiment with the Virtual Shield tool for Arduino, found in the last Microsoft operating system, for the purpose of creating a smartphone based geo-fence application, that would activate a relay when the phone is found inside a certain area. In the two previous installments we introduced you to the projects connected with Microsoft’s…
Let’s couple the 3D gesture recognition electrode to Raspberry Pi, in order to create an application with which the pictures can be scrolled on a HDMI screen, by means of gestures. In the previous post we described a new GestIC electrode, which has been developed and created for the purpose of interfacing the…
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