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Hardware fundamentals: how pull-down and pull-up resistors work. 3D Printable USB Air Purifier / Fumes Extractor - All. Como dessoldar CI em SMD sem Ferramentas Especiais - Nova Eletrônica. Atualmente no mercado você pode encontrar qualquer tipo de ferramentas para eletrônica, mas para quem é hobbysta ou iniciante investir em ferramentas especiais quase sempre é inviável, principalmente na atual situação do país.

Como dessoldar CI em SMD sem Ferramentas Especiais - Nova Eletrônica

Tirar um CI SMD é sem danificar o CI ou as trilhas da placa de circuito impresso requer habilidade, técnica e ferramentas especiais. Quando não temos nenhum destes tres itens partimos para a criatividade. Uma solução é fazer a famosa gambiarra, ou seja fazer uso ou mesmo construir ferramentas que solucionem nossos problemas de maneira mais barata e facil. Uma destas ferramentas está neste artigo, um dessoldador de circuito integrado SMD, que é capaz de dessoldar um CI rapidamente sem danificar a placa de circuito impresso, usando apenas um ferro de solda e um pedaço de fio de cobre. A ideia é simples, do tipo “porque não pensei nisso antes”, mas bem eficiente e barata. HUNDREDS OF PUSH BUTTONS WITH ONE PIN - Arduino. YouTube Subscriber Counter with ESP8266.

Follow the official assembly instructions for the Feather Huzzah using female headers (or stacking headers, though you'd have to cut the long legs off) Likewise follow the assembly instructions for your seven-segment FeatherWing display.

YouTube Subscriber Counter with ESP8266

Before you dive into the code for this project, you should first make sure you've got your Arduino software set up properly to program the board you are using, which in my case involves installing the SiLabs USB driver and installing ESP8266 board support (explained in more detail in the Feather Huzzah tutorial): 5 Ways to Remove a Stripped Screw. Build a Raspberry Pi-Based Cable Shutter Release for Sony Cameras. Replacing a simple and inexpensive remote cable release for your camera with Raspberry Pi may seem like a classic case of over-engineering, but using the tiny machine to control the camera opens up a whole new world of photographic opportunities.

Build a Raspberry Pi-Based Cable Shutter Release for Sony Cameras

Using a simple Python script, you can turn Raspberry Pi into a powerful and flexible intervalometer or trigger the shutter using sensors connected to the computer. Add to Raspberry Pi a Python-based web app, and you can control your camera from any computer or mobile device. As with any DIY electronics project, there is always a risk of damaging your camera, so proceed with caution. Easy Waterproof Clothing. 3D Printed Digital Night Vision (The OpenScope) I love light, physics, optics, and electronics.

3D Printed Digital Night Vision (The OpenScope)

Atom Icon by okazu - Dribbble. CNC Made From Garbage - All. Canadians produces 725 tonnes of e-waste annually.

CNC Made From Garbage - All

After seeing all of the electronics thrown away at my school, I am not surprised by this statistic. I believe that most thrown away electronics have a lot of hidden use. I wanted to prove this by building a machine entirely out of garbage. After looking at the electronics that I hoarded...ahem...I mean collected, I realised I could build a CNC machine. That's right, all of the components used in this project were thrown away. How-to make a ‘usb battery’ Found out yesterday that there’s a shuffle shortage and gadget battery life can only be expected to get worse. bummer. at least you can make the most of your waiting-for-shuffle blues and solder yourself a ‘usb battery’. this little gizmo runs off a 9 volt battery and supplies your favorite little device with the proper 5 volts of mobile power. in lieu of running an ipod off of it, i tested it with an mpx220 smartphone and it should work fine with any low power mobile device that can charge via usb cable. read more for instructions on how to make your own. here’s what you need to scrounge up: 5.1v zener diode.100ohm or slightly greater resistor. all i had was a 330ohm which works. don’t try anything lower than 100ohm.9v battery connector and 9v battery.flat female usb connector that mates with your device’s usb cable. this is the hardest part to find. i tore mine off an old usb extension cable. wire it up test it try it finish the job.

how-to make a ‘usb battery’

42 of the Most Useful Raspberry Pi Commands. Sometimes it’s difficult to keep track of all the useful Raspberry Pi commands you use, so I created a list of some of the most common and important ones that will make using Linux on the Raspberry Pi a lot easier.

42 of the Most Useful Raspberry Pi Commands

There are two user “modes” you can work with in Linux. One is a user mode with basic access privileges, and the other is a mode with administrator access privileges (AKA super user, or root). Some tasks cannot be performed with basic privileges and you will need to enter into root mode to perform them. You will frequently see the prefix sudo before commands, which means that you are telling the computer to operate the command with super user privileges. Another way is to access the root command prompt, which operates all commands with super user privileges. PlexiClock. First, I hope you will have a lot offun with the following instruction!


I also want to thank every author of the instructions which I used to manage this! I apologize for not being word-perfect in English and if you have any question, don’t hesitate to contact me! Before you begin to work, make sure you have all the parts together. You see all of the parts which I used in the first picture and there is a list with all of the parts following. I also included some links where you can purchase the parts and some other tutorials regarding each used circuit board.

How to make an EMP Jammer.


Using an Infrared Library on Arduino. IRLib not only receives and decodes IR signals but it can transmit them as well using an IR LED and a driver circuit.

Using an Infrared Library on Arduino

The library has been used to control TVs, cable boxes, DVDs, VCRs, and IR controlled toys such as helicopters and dinosaur robots. It could also be used to control some home automation devices. Some users have attempted to control air conditioners and fans however protocols used for air-conditioners are extremely difficult to implement and we have not directly supported such protocols because they are very rare. Typically the output pin of an Arduino cannot supply sufficient current to drive and IR LED so you will want to implement a simple driver circuit using NPN transistor and a 470 ohm resistor is shown here: Make sure that you get the polarity of the LED correct. More advanced driver circuit schematics are available in the IRLib manual in section 1.4 Hardware Considerations.

The default timer is TIMER2 on the Arduino Uno and Arduino Mega. DVD to Laser Engraver. Scan Photo With Your Mobile Phone. Arduino Data Glasses For My Multimeter. Create a Joystick Using the Arduino Joystick Library 2.0. MANUAL DE PROGRAMACIÓN DE ARDUINO. 10 Free eBooks On Circuits - Electronics For You. From understanding basic circuits to creating complex circuits, from analog to digital circuits, from designing circuits on PCs to circuits analysis, these free ebooks on electronics carries everything that you ever wanted to learn about circuits.

10 Free eBooks On Circuits - Electronics For You

Enjoy! Atithya Amaresh Author: Forrest M. Make Your Own Custom Shortcut Buttons With an Arduino. The humble Arduino can do a lot of things, but did you know it can emulate a USB keyboard? You can combine those difficult to remember long keyboard shortcuts into a single custom shortcut key, with this simple circuit. Here’s the end result: Never used an Arduino before? Battery powered fog machine - All. You will need to acquire the following: - electronic cigarette kit (I advise buying extra emitters). I used a TW INTU E-cig kit, with a 5000 mAh battery, variable power up to 80 W, and a 4 ml tank. The kit that combines both these things for $65 is giving a broken link, I assume temporarily.- battery holder for 3 AAA batteries- 3 AAA batteries- 40 mm 5 V computer fan- a rocker switch- a 3D printed enclosure (see next step) Total cost <$100 if you have access to a 3D printer.

You can find other e cigarette fog machine hacks online, but I experimented with them and found them noisier and less foggy than I'd like (e.g. this one that uses an aquarium pump). How I built a keyboard by hand – Jack Lewis – Blog. I had spare mechanical keyboard switches and keycaps from other keyboard projects, and I wanted to see if it would be feasible to build a keyboard using only hand tools. I started with some aluminum sheet stock from the hardware store. It was perfectly sized to build a 5 column, 13 row grid keyboard, without any wasted space. I started by laying out where the switch holes would be cut. The holes are 14 mm squares, with 5.5 mm in between.

Disassembling a CD/DVD reader and reusing its parts. Top 5 Android apps for Electronics Engineers. There are more than 2.2 million apps available on Google Play Store (as of 2016) . With around 2000 apps for electronics engineers or hobbyists it can be a bit confusing to decide which apps you need. We have streamlined the choices in this list of the top 5 apps for electronics tinkerers. 1. Four ways to power up the Arduino Uno. The Arduino Uno has undergone many revisions and hence the power supply circuit has evolved to an almost foolproof design. In this project we will learn about the four different ways in which we can power up the Arduino Uno.

While making projects it is necessary to know the following techniques, since there are instances when flexibility with regards to the power supply is required. Overview of Quadcopter Components / How to Select Parts - All. Quadcopter frames come in a large variety of layouts, sizes, and materials. The 2 main layouts are: 1. Racing 2. Utility If you plan on doing acrobatic maneuvers such as flips and/or First Person View (FPV) flying, a racing frame would be your first choice.

The size of the frame will usually be denoted by a number such as 150, 200, 450, etc. Some materials used in quadcopter frames include: 1. 3D Printed Camera LED Ring. Antenna - Boost 433MHz receiver module receiving signal (XY-MK-5V) Laser Etching Glass. How to : Control Speed of Motor? Salvaging Liquid Crystal Displays (LCDs) Pole-Mounted Mason Jar Garden Lights. For each light, you'll need the following: Cheap precision drill stand - All. Simple Inverter. 12v DC to 220v AC. - All. Universal cable shortener - All. Arduino Attiny Programming Shield - All. Watercolor Resist Cards - All. High-Range Wireless Power. 18 gauge magnetic wire. Note that you can't use regular wire, you have to use magnetic wire (which has a very thin enamel insulation on it). One example is available on Amazon here: 6W (or less) AC/DC 12V Dimmable LED light bulb. Make your own IR remote that can reach anywhere - All. 3D printable 'Drone It Yourself' kit turns any object into an UAV.

Jul.6, 2013 Home-built drones are very popular among hobbyists with backgrounds in electronics and robotics. Jasper van Loenen, an independent designer working in the field of interaction/information, design and art, wanted to make the design simpler so anyone can make their own. Minecraft Server on Raspberry Pi 1.8.9 - All. Brilliance by Design: Resin-inlaid Wood. A non-jewellery post, for a change. We were running a bit short on shelving in the kitchen and wanted somewhere we could store all the preserves we're going to make from the garden this year, so we went to the timber yard to see what they had.

They had this, 155cm long piece of chestnut. It was pretty heavily cracked and pitted, with knotholes and so on. But, I had a plan. Resin inlay. First job, seal off the holes from the bottom, using aluminium plumber's tape. Make sure the wood is level, otherwise you'll end up with wonky resin bits. Now it's time to mix the resin. FindChips: Electronic Components, Distributor Inventories, Datasheets. Electronic Components Online - Build Electronic Circuits.

HOW TO MAKE A MODED GLUE GUN / Tutorial / DIY. Learning System. Which Programming Languages Can You Use With Arduino? Make: DIY Projects and Ideas for Makers. $2 Arduino. The ATMEGA328 as a stand-alone. Easy, cheap and very small. A complete guide. - All. How to Open a Lock With a Coke Can - All. Make your own 3d hologram projector using CD case & smartphone. Dot Matrix Business Card - All. Basics of Opamp circuits - a tutorial on how to understand most opamp circuits - Electronics-Lab. A minimalist solution to make VR panorama - All. MDI Project Wiki - MDI Project Wiki. These pages document the development of an ongoing research on generating and manipulating sound and imagery through rudimentary and easily accessible, open-source hardware, as an alternative (not opposed) to the use of prepackaged hardware/software solutions more common in design practice.

The research is being conducted in the framework of the Mestrado em Design da Imagem at Universidade do Porto, Faculdade de Belas-Artes. Project summary Skip to the full project description page >. output tests from Arduino to a 3.5' 128x96 LCD screen The general goal of this project is to build autonomous devices capable of generating imagery from collected data or transcoding acquired images into other media. Devices The devices are built around the Arduino development platform. Device one, current build Device One. Introduction to hobbyist Lock picking Aka: LockSport - All. Lock picking gets a bad wrap. When most people hear the phrase, it congers images of illicit activities and unscrupulous personas. Cable Chick's Cable & Connector Guide. Understanding TRRS and Audio Jacks - Cable Chick Blog. Learn Electronics and Arduino Just By Watching These Videos. Electronics made easy.