• Build your own high-quality ultrasonic detector & experience these sounds for yourself! • This assembly kit makes it an easy & fool-proof process• Comes with all parts & requires minimal soldering• High quality components• Built all from one box! Eavesdrop on nature with a little help from modern electronics. Who says you can't hear the sounds of bats? With the proper technical utilities, you can hear them – & much more! Build your own high-quality ultrasonic detector & experience these sounds for yourself! This assembly kit makes it an easy & fool-proof process: The printed circuit board is already fit with many SMD components. All there is to do is soldering in a few parts & connecting the circuit board with the microphone, the loudspeaker & the control elements. Up-to-date integrated circuits provide for high sensitivity & volume. And then you can go exploring: With the completed detector, you can turn the ultrasonic calls of bats into audible sounds. You can trace these fascinating aerobats in the dark to the places where they hunt for insects unnoticed. Not only bats, but also a host of technical devices emit ultrasonic sounds. You will be surprised how many inaudible acoustical sources surround us! Boost your ears: 20 k Hz is not enough! ...

• Easy to learn & assemble FM radio kit• Gives you a genuine retro FM radio product• High-quality components • High sensitivity & a rod antenna provided for the best radio reception• This kit contains all required parts• Reception range: 87.5 MHz to 108 MHz Do-it-yourself VHF Retro Radio Sheer nostalgia! The fascination of 40 years ago. All-in-one kit including casing, rod antenna & all necessary components. Select electronical components & rod antenna for best reception performance. Receive local & countrywide VHF radio transmitters with your do-it-yourself VHF radio! Radio assembly kit with printed circuit board & all required components – quick & easy to build! ...

• Want to build your own robots, turn your ideas into prototypes, control devices with a computer, or make your own mobile phone applications? It’s a snap with this book & the Arduino open source electronic prototyping platform• Get started with six fun projects & achieve impressive results quickly• Gain the know how & experience to invent your own cool gadgets With Arduino, building gadgets with embedded systems is easy, even for beginners. These tiny computers control functions in everything from cars to children's toys & mobile phones. Once you learn the basics, you'll build your first gadget in just a few days. Each learn-as-you-build project adds to your knowledge & skills. Projects included in the book are:• Stalker Guard
- a gadget with sensors to detect people approaching• Insect Robot
- An obstacle-avoiding robot with sensors & motors• Interactive Painting
- An interactive slideshow you control with your hands• Boxing Clock
- A graphically rich timer clock on an Android phone• Remote for a Smart Home
- A way to control power outlets with Arduino• Soccer Robot
- A remote-controlled, soccer-playing robot





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Want to build your own robots turn your ideas into prototypes control devices with a computer or make your own mobile phone applications Its a snap with this book & the Arduino open source electronic prototyping platform Get started with six fun projects & achieve impressive results quickly Gain the know how & experience to invent your own cool gadgets With Arduino building gadgets with embedded systems is easy even for beginners. These tiny computers control functions in everything from cars to childrens toys & mobile phones. Once you learn the basics youll build your first gadget in just a few days. Each learn-as-you-build project adds to your knowledge & skills. Projects included in the book are Stalker Guard
- a gadget with sensors to detect people approaching Insect Robot
- An obstacle-avoiding robot with sensors & motors Interactive Painting
- An interactive slideshow you control with your hands Boxing Clock
- A graphically rich timer clock on an Android phone Remote for a Smart Home
- A way to control power outlets with Arduino Soccer Robot
- A remote-controlled soccer-playing robot





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Ma Key Ma Key is an invention kit that turns everyday objects into input devices. Make interesting interactive displays toys games & entertainment Works with many different operating systems A development board designed using the ATMega 32u 4 CPU Can be used in an Arduino mode so you can write your own code to spin moors or light up LEDs What Can I Make With the Ma Key Ma Key How good is your imagination If you can think of it you can probably make it. Want to use a banana as a keyboard Go ahead. Want to turn your stairs into a piano no problem. You can even create your own dance mat if you like. How Does It Work Using an alligator clip connect two objects for example a pen & paper to the Space area on your Ma Key Ma Key. When the pen touches the paper you are making a connection completing the circuit & this sends your computer a signal that the space bar has been pressed. Because your computer thinks its a genuine keyboard press you can use it with any program. Who Should Use the Ma Key Ma Key Artists Kids Educators Engineers Hackers Designers Inventors Makers it was designed for everyone. What Can I Use With the Ma Key Makey As long as the material conducts a tiny bit of electricity it will work. ...

Ma Key Ma Key is an invention kit that turns everyday objects into input devices. What Can I Make With the Ma Key Ma Key? How good is your imagination? If you can think of it, you can probably make it. Want to use a banana as a keyboard? Go ahead. Want to turn your stairs into a piano, no problem. You can even create your own dance mat if you like. How Does It Work? Using an alligator clip, connect two objects, for example a pen & paper to the Space area on your Ma Key Ma Key. When the pen touches the paper, you are making a connection, completing the circuit & this sends your computer a signal that the space bar has been pressed. Because your computer thinks its a genuine keyboard press, you can use it with any program. Who Should Use the Ma Key Ma Key? Artists, Kids, Educators, Engineers, Hackers, Designers, Inventors, Makers; it was designed for everyone. What Can I Use With the Ma Key Makey? As long as the material conducts a tiny bit of electricity, it will work. Is it Just An Arduino? The Ma Key Ma Key runs on top of Arduino & it can be used in " Arduino mode" at any time. Meaning you can use it to spin motors, turn on LEDs or anything else that an Arduino can be used for. ...

• Hands-on advice for maintenance, repair, & DIY home & automotive electricity & electronics projects• Each chapter builds & reinforces your understanding of the "what" & the "how-to" aspects for electricity or electronics• Helps troubleshoot & fix malfunctioning electrical sockets Hands-on advice for maintenance, repair, & DIY home & automotive electricity & electronics projects For anyone who has felt lost when setting up a home entertainment system, wondered how to fix a malfunctioning electrical socket, or puzzled over how to make the Wi-Fi in the front room reach the back- Making Everyday Electronics Work is here to help! It's for ordinary, non-technical people who want to learn how to maintain home & automotive electrical & electronic systems & avoid costly repair bills. Bestselling electronics author Stan Gibilisco explains why devices & systems sometimes fail & presents solutions to common problems. Each chapter builds & reinforces your understanding of the "what" & the "how-to" of aspects of electricity or electronics. " Fact or Myth?" sidebars clear up points of confusion, & " Tip" sidebars offer specialized bits of advice. The last chapter presents several around-the-home DIY electronics projects for those who want to try out smart home features, solar power back-ups, green power-saving techniques, & more. A back-of-the-book glossary defines commonly encountered terms in easy-to-understand language. ...