Let’s print the PCBs by means of our CNC machine, that this time has been fitted with a controller that connects to a PC via USB, that draws the control signals and that regenerates timed pulses, simulating the parallel port. In this post you had the chance to learn about and to evaluate…
This post is sponsored by Choosing the right display technology for your next application requires an eye for detail A color display is hard to beat in any application and continued price erosion means it is becoming commercially viable to use graphical color displays in a wider range of applications….
RandA has been updated to be compatible with the 3rd version of Raspberry Pi: let’s going deep and explain all the new features. As you probably know, if you are familiar with the evolution of the raspberry board, in February of this year the 3rd new version of Raspberry Pi has been launched on…
Supplied with a robust chassis (made of plastics) and with three stepper motors, it is provided with a 9,000 RPM electro-spindle, to which it is possible to apply different kinds of milling parts, for the purpose of working wood, plastics, synthetic resins, and for carrying out small engravings on aluminum. It is not…
A Bluetooth enabled remote that will help you control one or more IR-controlled electric payloads. In this post, we are going to present a project for emulating an IR remote control composed of a RandA board (an Arduino that has connectors to interface with Raspberry Pi on one side and connectors for…
A 433,92 MHz Receiver that can be paired with a maximum of 10 Motorola TX each with relay outputs that can be set both in monostable or bistable mode. Although we have had high security encoding for several years, based for instance on rolling-codes, a lot of remote controls and especially those installed…
It can be controlled through logic levels to set the speed and the direction of the rotation of CC brushed motors and stepper motors; outputs have LEDs indicating the rotation direction. The circuit board we are presenting this time is based on the dual-bridge driver L298N, in a traditionally mounted version in a…
It allows us to detect the presence and passage of an object thanks to the combination of a laser diode which emits a light ray and a phototransistor which detects reflected light. Robotics applications and industrial control systems normally make use of optical systems in order to detect proximity and passing of objects,…
It measures solar radiation and visualizes the corresponding value on the integrated display of a miniaturized Arduino, in order to tell us when to expose ourselves to the sun… Summer is just around the corner and whether you choose the seaside or the mountains for your holidays, there is no doubt that most of…
Designed for small amplified audio speakers or as output stage for MP3 players, radio receivers or compact hi-fi systems; it is based on a class D integrated circuit which, thanks to the high efficiency, is ideal for battery-powered solutions. Small power amplifiers for battery-powered audio devices must satisfy two requisites, which are essentially…
Let’s call back an electronic version of one of the most famous casino games: no tricks and no cheats… The “roulette” is without a doubt one of the most famous and practiced casino games in the word, and it is surely one of the most widely employed, along with poker, in famous movies from…
A control unit for the garden sprinkler that can be controlled via web and smartphone thanks to Arduino Yún. With summer approaching, our plants and our gardens need some regular watering in order to stay lush and green as we like them. It’s not easy to always remember to water plants and gardens…
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