Perhaps the most prominent topic in our questions section and about which we are consulted in conversations with our followers is the use of electrolytic capacitors. For many, it may seem like a simple capacitor, but it doesn't have such a simple behavior due to its characteristics. In this article, we approach the behavior of these capacitors in a slightly more profound way, thus removing doubts that many may have.
The objective of this project is to develop a didactic braking distance simulator that can be used in demonstrations at science fairs and schoolwork, both by elementary school students and by high school students. The simulator was designed based on a strip of addressable RGB LEDs controlled by an Arduino system. As for the source code, the standard C programming language for Arduino and the Adafruit NeoPixel library were used, which makes it easy to control the LED strip. The interested student can assemble the electronic circuit and upload the source code even without having previous knowledge in electronics or programming.
The concern of all of us with cleaning is growing, both in view of the need to avoid pandemics such as the one that occurred at the time of writing this article (2020) and to keep clean environments frequented by people, for several other reasons. We have already dealt with other articles on ionizers and ozonizers, which are resources that make use of technology and that provide clean solutions for hygiene. The other device we will deal with in this article is the electrostatic filter.
The search for clean means to improve productivity in the countryside is undergoing very great advances with the arrival of new technologies. Technologies that do not use chemical products or that do not harm the environment are fundamental both for the preservation of the planet and for the quality of the products. With the availability of high-performance LEDs, emitting light in specific portions of the spectrum, a new space opens up for the development of new applications for the countryside.
We have constantly made articles, quotes, and news about living sensors which exist in nature and that can be used in the most interesting bionic projects. An important case, that we discuss in this article, is that of a cricket that can be used as a natural thermometer, also being able to detect climate changes. How about hooking a cricket up your Arduino for your next project or bionic presentation? That's what we'll see in this article.
Project 3.11 described a biologic trap where visible and ultraviolet (UV) light were used to attract insects. In that project, the insects were collected in a bag placed under the lamp. The idea suggested here is a trap that kills insects and other very small creatures by a high-voltage electric discharge.