Système canadien de référence spatiale - Calcul inverse géodésique Démonstration en ligne News: CGVD2013 is now available! Natural Resources Canada has released the Canadian Geodetic Vertical Datum of 2013 (CGVD2013), which is now the new reference standard for heights across Canada. This new height reference system is replacing the Canadian Geodetic Vertical Datum of 1928 (CGVD28), which was adopted officially by an Order in Council in 1935. Geodetic reference systems stem from the need to provide a consistent and integrated reference surface for data analysis. This site provides end-users with the geodetic data and tools they need for a range of commercial and private uses. Date modified:
Tutorials New! Getting Started with LTspice LTspice is a high performance SPICE simulator, schematic capture and waveform viewer with an impressive library of passive devices. RFID Basics An overview of Radio Frequency Identification (RFID) technology. LIS3DH Hookup Guide A guide to connecting the LIS3DH to a microcontroller and using the Arduino library. Lessons in Algorithms Learn techniques on how to use Finite Impulse Response (FIR) filters and other data-processing tools to turn data into information. Illuminated Mask Use LilyPad LEDs, a switched battery holder, and coin cell battery to make a fun light up mask for your next costume party. Glowing Pin Create a quick and easy piece of e-textile art using a LilyPad LED, battery holder, conductive thread, and coin cell battery. Light-Up Plush Craft a light-up plush with LilyPad LEDs controlled by pressing a button and sliding a switch in the creature's hands. Looking for the old, archived tutorials?
Connect an iPhone, iPad, or iPod touch to Arduino with the Redpark Serial Cable Step #1: Wire up the RS232 adapter to the Arduino PrevNext Connect the RS232 adapter's power and ground to the Arduino's 5V and GND pins, respectively.Connect the RS232 adapter's TX to the Arduino's RX, and the RS232 adapter's RX to the Arduino's TX. Step #2: Make sure you're set up for iOS development To develop apps for the iPhone, iPad, or iPod touch, you'll need to register as an iOS developer. Although you can register for free, all that gets you is the development tools. Step #3: Make sure you can run an app on your iOS device If you've never programmed for the iPhone before, you can't count on this guide to help you. Step #5: Add a switch to your app On the left pane of the screen, expand your project, and open the folder HelloArduino.Next, locate the HelloArduinoViewController.xib and click on it. Step #8: Import the iOS Accessory Framework Next, you need to import Apple\'s Accessory Framework. Step #9: Add some declarations to the view controller Step #13: Test the Arduino
Weller Magnastat Autopsy and Repair » Code and Life Immediately after soldering together my USB password thingy, my solder iron, the family heirloom Weller Magnastat stopped working. Some investigation showed that the base station was providing 24V AC voltage just fine, so I decided to unassemble the handpiece to see if something could be done. Here’s what I found: It turned out my iron was salvageable; read on to learn a bit about the Magnastat and how I was able to repair mine. Magnastat basics The construction of the device is surprisingly simple (see this image): The first (blue) wire from A/C power unit goes straight to the heating element (first red wire with black tube around it). A long tube goes “out” the handle part into the iron tip, and the tip is placed at the head. Note that in my model the tip and the magnastat are one solid piece (magnastat is in the base of the tip), newer models have a separate magnastat and tip, and you can change the target temperature just by changing the magnastat part. Reviving the old Weller
Learn About Electronics - Home Serial Cable - Redpack These Redpark serial cables connect 30-pin iOS devices to RS-232 serial devices. Two version of the cable are available. See the FAQ for details on the differences between the two versions. The cables are used in conjunction with the Redpark Serial Cable SDK. Part #: C2-DB9V Price: $59 UPC #: 013964221015 Warranty: 1 year Length: 1 meter Part #: C2-DB9 Price: $59 UPC #: 013964221008 Warranty: 1 year Length: 1 meter Q: What are the differences between the two 30-pin Serial Cables? Q: What kinds of devices have serial ports these days? Q: Which iOS devices are these cables designed for? Q: Is there a way to connect to devices using TTL (logc level)? Q: Can I power the iOS device using this cable? Q: Can I power the serial device using this cable? Q: What apps does this cable work with? Q: Does the cable work with apps available at the App Store? Q: How can I tell if my iOS device recognizes the cable? Q: How do I know what version of firmware the cable is using?
List of single-board computers One of the first 10 MMD-1s, a prototype unit, produced by E&L Instruments in 1976. The "dyna-micro"/"MMD-1" was the world's first true single board computer.[citation needed] The MMD-1 had all components on a single printed circuit board, including memory, I/O, user input device, and a display. Nothing external to the single board except power was required to both program and run the MMD-1. The original design of the MMD-1 was called the "dyna-micro", but it was soon re-branded as the "MMD-1" List of single-board computers – computers built on a single circuit board, with microprocessor(s), memory, input/output (I/O) and other features required of a functional computer. ARM based[edit] Other board[edit] ARM9, ARM11[edit] Cortex-M3[edit] Cortex-M4[edit] MYD-LPC435X EVM for NXP LPC4350/4357 ARM Cortex-M3 microcontrollers designed by MYIR Freescale i.MX[edit] OMAP[edit] Rabbit/Z80[edit] Rabbit SBC Signetics 2650[edit] ST-Ericsson NovaThor[edit] Snowball – ST-Ericsson Nova A9500 Xilinx Zynq[edit] P-Cubed
Learn Electronics Online | Easily master the basics of electronics theory and practice MaKey MaKey: An Invention Kit for Everyone (Official Site) WHAT IS ELECTRICITY? Many people have asked me, "What is Electricity"? It's a great question. I get really excited when I think of all the latest technical advances in electronics. You see electricity in action all around you. So, what is electricity? Simply stated, electricity is the movement of electrons through a conductor. Atoms are the building blocks of all matter. Some materials are made up of atoms that have so many electrons circling around the nucleus that each atom is able to give up one or more electrons very easily. Metals like copper, gold and aluminum make excellent conductors of electrons. Other materials are made up of atoms that do not like to share electrons. Plastic, glass and paper are good examples of insulators. In order to get electrons to move through a conductor, such as a copper wire, it is necessary to apply opposing forces of energy to each end of the wire, a positive force to attract electrons from the wire and a negative force to give back electrons to the wire.
Segway France - Belgique - Luxembourg | Accueil basic electronics LAST MODIFIED: Wednesday, 18-Mar-2015 17:25:56 PDT Authored by Ian C. Purdie VK2TIP Find us on Google+ •NEW! The navigation bar to the right is a very comprehensive list of topics in basic electronics and is listed in a suggested order. Following a lot of requests from newcomers I have provided a separate page called "starting out in basic electronics". If you want a reasonably good grounding don't forget to review electron theory and atoms this is the very basis of electronics. This chapter basic electronics is the most important of all for newcomers. Here you should gain a full understanding of basics electronics. You must have a good grasp of ohms law, an understanding of power, voltage, current and resistance. Capacitance, inductance as well as reactance which leads on to impedance and "Q". Very popular basic electronics topics are impedance matching and the wide variety of transformers ranging from power transformers, audio transformers and wide band rf transformers. NEW!