Transistor Tester (Beginners) (ART605E)
Many of the designs we describe use transistors, and transistors can be easily obtained from old, disused equipment. So one of the problems we encounter when trying to use these transistors is knowing if they are good. We also have the case where we use a transistor in an assembly, something went wrong, and we need to know if the transistor is still good or if it has been damaged. Finally, if you do transistor repair on electronic equipment, you can use this tester to check a suspect transistor in a device. To solve these problems, we describe the assembly of a simple transistor tester.
Designing and Assembling Transformerless Power Supplies (ART604E)
Transformerless power supplies, or FAST for short, or simply transformer less power supplies, are very useful in low-consumption projects that must be connected to the power supply network, as they eliminate the need for an expensive and bulky component, the power supply transformer. How to design and assemble this type of source is what we will see in this article, which is very useful for those who need sources of up to 12 V with maximum output currents of around 50 mA.
Insect Robot (MEC217E)
Insects have always aroused some kind of reaction in humans: curiosity, fear, disgust, etc. The fact is that these "little" beings are objects of study by many biologists and also by "mechatronic scientists". The latter research mainly their locomotion, and their way of recognizing the environment (sensors), among others. The robot which we propose in this article is relatively simple to build and can help the reader to better understand the possible means of locomotion without "wheels" in Robotics.
Climber Robot (MEC218E)
How about assembling a robot that has a special shape to move around? Instead of wheels, belts or even "legs" to get around, this robot uses claws and its own body to perform its movements. It was not designed to move on the floor, but in "heights". An excellent project for demonstrations at fairs, events and meetings.
FOX Wireless Control System (TME006E)
FOX is a new building automation system from F&F. Thanks to the products in this series, you can create an intuitive, remotely controlled system in your home or office. The system works on the basis of a local Wi-Fi network or an F&F cloud, but devices can also be controlled in a more traditional way, by using buttons on the wall, without a wireless network connection (e.g. in case of router failure).
ADR-1 Robot (MEC217E)
The ADR-1 (or "Walker-1") is a very simple robot, easy to build and program. And its cost is very affordable. Basically, the robot moves in a fixed direction (forward) and, when encountering (touching) an obstacle, it deviates. For this, it uses "sensors", keys which when pressed "inform" about the position of the obstacle to the "brain". This then prepares the deviation with a slight return, pointing in the opposite direction to the touch. After this move, the ADR-1 continues its "journey" straight ahead until it encounters another obstacle. Below we show two versions of the robot.
