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AutoCAD to EAGLE PCB Drawing Import - DIY AUDIO BLOG, AUDIO WORKSHOP. Drawing a PCB by exact dimensions using EAGLE PCB isn’t quite the easy thing.

AutoCAD to EAGLE PCB Drawing Import - DIY AUDIO BLOG, AUDIO WORKSHOP

An easier approach would be to draw it in AutoCAD and then import. Importing is quite easy. 123D Circuits. PCB Printed Circuit Board File Creation Calculator. Menu Home / Trace Width Website Calculator Trace Width Website Calculator Engineering/Technical Download BROCHURE Lorem ipsum Powered by QuikWeb Developer ©Advanced Circuits. 2015 All Rights Reserved.

PCB Printed Circuit Board File Creation Calculator

Advanced Circuits has been the leading PCB quick turn manufacturer since 1989. Original text. Raspberry Pi B+ Power Protection Circuit. I just bought the newly relased Raspberry Pi (RPI) model B+.

Raspberry Pi B+ Power Protection Circuit

In comparing the schematic with the older model B, I noticed they have updated the power protection circuit. The circuit functionality is mostly obvious. Distributeur de Composants Électroniques. Adding an On/Off switch to your Raspberry Pi - 楼里打扫. As most of you know by now, the Raspberry Pi is a fantastic little Linux box with many wonderful features.

Adding an On/Off switch to your Raspberry Pi - 楼里打扫

Over the last year and a bit that the Raspberry Pi has been out in the wild, users have discovered that this little computer can do almost anything – and without crippling your wallet! However, Raspberry Pi's very small price tag and form factor mean that the Rasp Pi has had to do without some of the home comforts normally found on a laptop or desktop computer – one of these comforts is a power-on and -off switch.

The only safe way to shut down the Raspberry Pi is to do it manually using the graphical desktop interface – either with the LXDE power management window or by opening a terminal window and typing in a shutdown or reset command. Although an orderly shutdown is not a huge amount of work, it often gets overlooked or forgotten, and some users just pull out the microUSB power plug while the system is running. Dirt Cheap Dirty Boards. Design Your Own PCB Business Card. 12 : Allumer des prises à distance. Ce post est le douzième d’une liste de tutoriels sur le raspberry PI, cliquez ici pour accéder au sommaire !

12 : Allumer des prises à distance

Avant que la fin du monde (un peu tardive), ou une trop grosse cuite du nouvel an ne nous sépare, je tenais à vous offrir ce petit tuto sur le “télécommandage” (ça se dit ça?) 15 : Créer sa propre prise radio (et autres périphériques) pour 6€ Ce post est le quinzième d’une liste de tutoriels sur le raspberry PI, cliquez ici pour accéder au sommaire !

15 : Créer sa propre prise radio (et autres périphériques) pour 6€

Suite à nos précédents tutos sur le Raspberry PI et la domotique contrôlée par radio (et notamment le tuto 12), certains d’entre vous m’ont demandé si il n’était pas possible de se passer de prises Chacon, d’autres m’ont demandé si des multiprises existaient sur le même principe, quant à moi je souhaitais de débarrasser de Chacon pour diverses raisons : ANSI PCB Track Width Calculator. This is the NEW version of my calculator.

ANSI PCB Track Width Calculator

The original version is HERE. New features in this version include: use of metric or imperial units for all major fields the ability to change units for any applicable field on the fly minor enhancements to some of the calculations - IPC-2221(A) changes the curve fit saving of all parameters in a cookie to keep your preferences between visits This page calculates approximations to the ANSI / IPC-2221/IPC-2221A design standards for PCB trace width - this is the replacement for IPC-D-275.

The approximations and rationale are described in Temperature Rise in PCB Traces, equations 13 & 15. by Douglas Brooks, UltraCAD Design, Inc. Electronics and Electrical Engineering Tools. Calculate the required trace width for a specified current.

Electronics and Electrical Engineering Tools

Electronic Parts Online Store - Tayda Electronics. DealeXtreme - Cool Gadgets at the Right Price - DX Free Shipping Worldwide. CircuitBee. A new open source hardware project every month. The Adafruit Eagle Library. What be in the Adafruit Eagle library hells yes its my very own mixtape of package footprints.

The Adafruit Eagle Library

Dont forget you can also grab parts out of any adafruit project's .brd file by running exp-project-lbr.ulp . However, since its nice to be tidy, I'll be merging everything into ONE FILE called the Ye Olde Adafruit Eagle Librarie, available at github Please note, this library is under serious construction, it'll be updated constantly with old parts files that must be copied in & cleaned up! You can almost certainly 'subscribe' to the project at github , I just dont know how. The license. LED calculator for single LEDs. LittleBits Hue Lighting Controller.

Animated GIF showing me using the LittleBits Hue Controller to cycle the brightness and color of my lights In case it wasn’t clear from my recent cameo on some RadioShack fliers, I’ve been having a bunch of fun with LittleBits‘, more sophisticated modules recently.

LittleBits Hue Lighting Controller

A few months ago, I posted a project showing how to use the CloudBit to connect your umbrella stand to the internet. This latest project leverages the LittleBits Arduino Bit, a small linux computer (like a BeagleBone, Raspberry Pi, or UDOO), and the Philips Hue Hub to easily control the state, brightness, and color of your Hue lightbulbs via a tactile interface. How to Design the Perfect PCB - Part 2 - Michael LeonardMichael Leonard. This post continues from “How to Design the Perfect PCB – Part 1.” In part one we covered how to finish the pre-layout work like setting goals, visualizing your design, and selecting parts. In this post we focus more on the physical side of PCB design and discuss the caveats that may trip you up. The featured image for this post is the Manga Screen designed by Elias Bakken, you can learn more about it and explore his work at Hipstercircuits. Controlling Motors. Ver: nov-07 (Note: images are intentionally grainy to reduce load time) There are many ways to implement on-off control of small DC motors using a BASIC Stamp.

Each method requires construction of an interface circuit. Transistor: Simple Switch with Raspberry Pi GPIO - TacticalCode EN. Today, I’ll show you a small tutorial on how you can use a Raspberry Pi, a transistor and some wire to replace a PC’s on/off button. This way, it could be possible to start devices over a network, although they aren’t wake-on-lan capable. In general, this method can be used everywhere a circuit is to be closed. For voltages above 5V however, You should use a relais to do the job. Also, my Twitter-Followers can calm down: No, this wasn’t a doomsday device ;) For the time being, I don’t have much component parts to play with, so I can only do articles on rather simple circuits. Linux e hacking: Recharging and reusing Acer laptop batteries on DIY projects with arduino.

It's not unusual to end up with dead laptops whose battery is still useable for some other projects, the most usual practice, is to dismantle them to recover 18650 cells, but then you will have some prolems with integrating them on your project, the first one is avoiding stuff to catch fire or blow up and the second one is that you have no way to reliably tell how much % of charge is left on these batteries, and their real capacity ( capacity decreases with time and usage ). These batteries in most cases are connected to an I2C/SMBus of the laptop and they use the Smart Battery protocol, which is a standard of most advanced battery powered systems, especially laptops. The hardest part normally is to find the pinout of these batteries, but since Acer easily leaks complete motherboard schematics, it has not been hard to find these pinouts.

Charging the battery and using it. 18650 Things To Do With An Old Laptop Battery. If you’ve owned a laptop for a few years, you’ve no doubt encountered the problem that the battery eventually loses its ability to hold a charge. Generally what happens is that one or more of the cells inside the battery pack degrades to the point that it cannot be recharged, and the entire pack loses its effectiveness. At this point, your choices are to buy a new replacement pack, or put on your hardware hacking hat and safety glasses, and start taking things apart.

Now, before you start tearing things apart, note that the lithium cells in a laptop battery can contain a lot of power, and you can hurt yourself or set things on fire if you’re not careful. LM R25 VGA LCD Controller Board DIY A Laptop—A Desktop Monitor Reuse Repair LED. iMac G3 revival - MacRumors Forums. Hi All, On december 25th this year my faithful old iMac G3 'Bondi Blue' turned 13 years of age. Since i opened this computer as a gift at the age of 8, i basically grew up with this computer and its been used all the time up until my grandad died 3 years back. When my family were going to dispose of the iMac i made sure that i took it, but its sat there in the corner ever since. Now the screen is starting to flicker, sometimes it wont show the boot screen and its very noisy. Not being much use it has sat there in the corner looking sorry for its self. Un (non)blog pour les (non)geeks, low-tech warriors et autre bricoleurs avertis - Artisan Numérique.

Raspberry Pi GPIO: Driving a Relay using a Transistor. A transistor usually drives a relay by energising its coils, because the relay contacts can then switch higher voltages and currents, which the transistor cannot manage directly. The Raspberry Pi Hobbyist: GPIO Output Relay Interface. Note: See my revised relay circuithere. To allow the greatest flexibility, my outputs are all relays. This allows me to switch a variety of voltages and provides protection to the GPIO pins of the Raspberry Pi. All About Circuits : Free Electric Circuits & Electronics Textbooks. iFalls: iMac G3 Modding con Atom 330 e OSX + Ubuntu.