FlatFab. High-Power Control: Arduino + TIP120 Transistor. Up until now, we have talked about working with a lot of low-power devices.
Sensors, LEDs, ICs, and the like are all capable of being powered directly from your Arduino, but as many awesome 5 and 3.3v components as there are, eventually you will find yourself holding a 12v solenoid, motor, or light and wondering “How the heck am I supposed to control this from my Arduino?” Well today we are going to talk about doing just that from a magical device know as a transistor, specifically the TIP120 Darlington Transistor. The reason I’m covering this particular transistor is because it is readily available, and you can usually pick one up from Radio Shack, Adafruit or other local parts store in a jam, but you can use any NPN darlington transistor like the BD651 exactly the same way.
How this works WARNING: I am about to simplify the crud out of this, so beware… it is here in an attempt to explain, in simple terms, what is going on. Hooking it up / What’s the diode used for? All projects. Etronics boutique réalisation de circuits. Le Tricodeur — quand le numérique et la maille se rencontrent. Buy strong neodymium magnets online - supermagnete.fr. DIY Bicycle Dynamo USB Charger for Smartphones and Battery Packs – Rob Thomson's Adventures. In this post I describe how I made a USB smartphone charger for a hub-dynamo-equipped bicycle.
The idea came from multiple sources, including Mr. Howdy, Arenddeboer.com, and Peter. But they assume the person making the charger knows how to read a circuit diagram. I cannot understand a circuit diagram. If you’re like me, then this blog post is for you. The rundown: Total cost: approx. What this device doesWhen charging your smartphone using a wall charger or your laptop’s USB, the electricity going into your phone is direct current (DC) at 5 volts. Disclaimer: I know nothing about electronics. Update (2014/06/08) – Thanks to commenter Prashant, I’ve just found out that you can buy a perfectly good charger for only US$30 or so: The Biologic ReeCharge Dynamo Kit. Update (2014/09/21): Note Viktoras’s comment that the Biologic Reecharge may not give enough output for some devices.
EURECART - Electronique. PHOTOS. J'ai construit ma "tiny house", 14 m2 sur roues. Je gagne du temps et de l'argent. Laëtitia Dupé devant sa "tiny house" (DR).
Designer de formation, je me suis lancée un défi un peu fou : réaliser une des toutes premières "tiny houses" de France. Une "tiny house" est une "toute petite maison" la plupart du temps sur roues. Il s'agit d'un logement de plus en plus répandu aux États-Unis, mais encore peu connu dans notre pays. J’ai appelé ce projet "Baluchon", car mon nouveau logement est petit, qu’il ne contient que l’essentiel et que je peux l’emmener partout avec moi. DIY: Glass Bottle Cutter. Réaliser une maquette architecturale (carton plume, bois, etc ...) De nombreux architectes ou modelistes d'architecture utilisent le carton plume et le balsa pour réaliser des maquettes de constructions à échelle réduite.
La réalisation de maquettes fait partie du processus de conception abordé en STI2D, et elle figure au référentiel. Elle permet : de tester des propositions de conception dans l'espace, sans recourir au logiciel 3D. de présenter des choix retenus de tester des comportements complexes à simuler par ordinateur (reflexions lumineuses, ombres portées, trainée aérodynamique ...) Woodworking for engineers. X-Carve. Sans titre. Sans titre. This Handibot website is provided by ShopBot Tools, Inc.
The World's Best Photos of drawing and polargraph. Flickr Hive Mind is a search engine as well as an experiment in the power of Folksonomies.
All thumbnail images come directly from Flickr, none are stored on Flickr Hive Mind. These photos are bound by the copyright and license of their owners, the thumbnail links take to you to the photos (as well as their copyright and license details) within Flickr. Because some other search engines (Google, etc.) index parts of Flickr Hive Mind, you may have been led here from one of them.
Welcome to Flickr Hive Mind, almost certainly the best search engine for photography on the web. Home. DIWire — Pensa Labs. Gear Generator. Shapeoko 2 Works Kit Tutorial - Desktop CNC Carver Router by Inventables. Drawing by robot. Horus released under GPL license. Horus is a multi-platform software to control Open Source 3D scanners.
It has a graphical interface to manage communications, data capture and synchronization, image processing, calibration processes and the generation and visualization of point clouds. It has been developed and optimized for GNU/Linux1 Ubuntu2. evertheless, it has been tested as well in Windows systems and Mac will also be supported. The software has been coded in Python3. It uses wxPython4, NumPy5, SciPy6, Matplotlib7, OpenGL8 and an optimized OpenCV9 version for Linux. Horus is Open Source software. Installation Nowadays Horus is still a beta. Ubuntu Descarga – Horus 0.1 32 bit beta Descarga – Horus 0.1 64 bit beta The installation of Horus in debian systems is performed through a deb package. E-nabling The Future. Developed collaboratively by some of e-NABLE’s top designers, the Raptor Hand is designed with ease of printing and assembly in mind.
Features include 3D printed snap pins, a modular tensioning system, and compatibility with both velcro and leather palm enclosures. Obrary - the open design marketplace of products customized for you. ShopBot 101. Handibot™: A Smart Digital Power Tool by ShopBot Tools. A Handibot tool is a new kind of portable, digitally-controlled power tool for cutting, drilling, carving, and many other machining operations– a first Universal Digital Power Tool (UDPT) – or just, a Smart Tool.
If you're familiar with industrial CNC (computer numerically controlled) equipment, think of the Handibot tool as a portable version of CNC.