By Simon Monk

Filled with useful, selfmade instruments, Arduino + Android initiatives for the Evil Genius exhibits you the way to create Arduino units and regulate them with Android smartphones and pills. Easy-to-find apparatus and parts are used for the entire tasks within the book.

This wickedly creative advisor covers the Android Open software improvement package (ADK) and USB interface and explains the best way to use them with the fundamental Arduino platform. equipment of communique among Android and Arduino that don't require the ADK--including sound, Bluetooth, and WiFi/Ethernet also are mentioned. An Arduino ADK programming instructional is helping you start correct away.

Arduino + Android tasks for the Evil Genius: * includes step by step directions and valuable illustrations * offers suggestions for customizing the tasks * Covers the underlying ideas in the back of the initiatives * eliminates the disappointment factor--all required elements are indexed * offers all resource code at the book's website

Build those and different devious devices: * Bluetooth robotic * Android Geiger counter * Android-controlled gentle convey * television distant * Temperature logger * Ultrasonic variety finder * domestic automation controller * distant energy and lighting fixtures keep an eye on * clever thermostat * RFID door lock * Signaling flags * hold up timer

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Extra resources for Arduino + Android Projects for the Evil Genius: Control Arduino with Your Smartphone or Tablet

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Another approximation concerns the free space above the trace. Most circuit boards are used in an enclosure of some type; if a microstrip is used on the circuit board then any metal cover must be kept far above the traces. This will keep the electric field lines above the microstrip from becom­ ing distorted by the presence of a cover. These approximations allow one to write a simple formula for the character­ istic impedance of the microstrip. 001 of an inch), d is the distance to the ground plane (again, in mils), t is the thickness of the trace (in mils) and εr is the relative dielectric constant of the dielectric mate­ rial used in the circuit board.

A ground ring is used to isolate a section of circuitry from the rest of the board. It is most useful for high-end op amps. See Figure 3-2 for an example of a ground ring. See how the ground ring surrounds the sensitive input pins of the amplifier. It connects both to the ground pins of the amplifier and to the ground plane of the board (not shown). Ground rings should be used on low noise or high impedance points in the circuit. Figure 3-2: Ground rings Another important routing technique involves differential signals.

Do not underestimate the importance of these steps; careful placement and routing can insure that your circuit board performs to its fullest potential. 21 Fabricating Printed Circuit Boards The placement and routing of a circuit board is much more of an art than a science. If you ask ten board designers the same question, you will probably get twelve answers, and maybe start a fistfight! Like all art, circuit board placement and routing is best learned by lots of practice. Don’t be afraid to make mistakes; I have made plenty.

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Arduino + Android Projects for the Evil Genius: Control by Simon Monk
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