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The Theremin was the first music synthesizer. The Junior Theremin is our, smaller, version of that classic electronic musical instrument. As you move your hand towards and away from the wire aerial, the Theremin responds by changing the pitch of the note it is playing. It can play individual notes as well as varying the tone of a single note. How do you use the theremin? The wire aerial responds to the movement of your hand towards and away from it and changes the pitch of the note it plays, without actually being touched. Junior Theremin works in two modes – continuous and discrete. When you first connect the battery Junior Theremin is in continuous mode. Pressing both pushbuttons together switches between continuous and discrete modes. Discrete mode, as its name implies, plays individual or discrete notes rather than a continuously variable tone. Eight notes over a single octave are available. In discrete mode the two pushbuttons change the octave of the notes. The left-hand pushbutton (marked -) lowers the octave, and the right-hand pushbutton (marked +) raises the octave. The pushbuttons only change the octave so long as they are pressed. In continuous mode the pushbuttons have no effect. Downloads Manual

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This kit contains everything needed to start learning about connecting electronics to the micro:bit in an accessible and easy manner. Everything is connected using the supplied alligator clips, so no soldering required. Included MonkMakes Speaker for micro:bit MonkMakes Switch for micro:bit MonkMakes Sensor Board for micro:bit Set of alligator clip leads (10 leads) Small motor with fan Single AA battery box (battery not included) Light bulb and holder Booklet (A5) Downloads Instructions Datasheet Lesson Plans

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Get started with microcontroller based electronics This Arduino-compatible bundle contains the Motherboard, Digitiser, Sensor Array and RGB Matrix. With these 4 boards you have everything you need to build a clock, score counter, timer, task reminder, thermometer, humidity display, sound meter, light meter, clap trigger, colored bar graph display, animated alarm, and much more! The Motherboard has a built in real time clock module that keeps time even when unplugged. The Digitiser can display 4 digits or characters and includes 2 buttons and a potentiometer to let you control what’s being displayed, or the brightness of the display. The Sensor Array can read temperature, relative humidity, sound and light, with an SD card slot for data recording. The RGB Matrix has 16 RGB LEDs that are controlled through shift registers, so only use 3 or 4 pins of the Motherboard. Motherboard The Motherboard is an Arduino-compatible microcontroller breakout board designed around the ATmega328P. The board comes in a solder-it-yourself kit with all the components you need to get started with microcontroller based electronics. All other boards connect to this. Based on the ATmega328P Arduino compatible On-Board RTC (Real Time Clock) FTDI Header for easy programming Bluetooth Header Terminal Block Connections Digitiser The Digitiser is a versatile display and input board. It let’s you visualise your data. Show your sensor information, clock digits, or even keep score for your favourite card game. The Digitiser also includes some buttons and a knob to let you take control. 4x 7-Segment Displays Uses 595 Shift Registers 2 Switches and a Potentiometer 4 colored 'Mode' LEDs Chainable with other 595 Boards Terminal Block Connections Sensor Array As the name suggests, the Sensor Array is an array of sensors. Measure temperature and relative humidity via the DHT11, light via the light dependant resistor, and sound via the microphone and amplifier circuit. Then you can log the data using the on-board SD card slot. DHT11 Temp & Humidity Sensor Microphone and Amplifier Circuit Light Dependent Resistor MicroSD Slot for Saving Data Logic Level Converter Circuit Terminal Block Connections RGB Matrix Add color to your project by controlling 16 red, 16 green and 16 blue LEDs with just 3 pins of your microcontroller. The RGB Matrix uses shift registers, a matrix and switching transistors, so there’s plenty to learn and explore. 4x4 (16) RGB LEDs Uses 595 Shift Registers Chainable with other 595 Boards Transistor Switches Terminal Block Connections Downloads (Manuals) Motherboard Digitiser Sensor Array RGB Matrix

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This book is aimed at practising engineers, students and hobbyists. It is intended as a source of reference for hardware and software associated with instrumentation and control engineering. Examples are presented from a range of industries and applications. Throughout the book, circuit diagrams and software listings are described, typical of many measurement and control applications. The hardware and software designs may be used as a basis for application by the reader. The book contains examples of PIC, PLC, PAC and PC programming. All code samples are available to download free of charge from the support website. After an introductory section on control theory and modelling, the text focus is upon software for control system simulation and implementation, with appropriate reference to interfacing, electronic hardware and computing platforms. Introduction to Control Engineering is a sourcebook of solutions for control system applications!

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Electrical Engineering Tools in your Pocket A set of 8 credit card-size, flexible cards packed with reference data all electronics designers need easy and instant access to. Whether you reverse-engineer an SMD board, figure out component values, or decide your best way to have a PCB manufactured, these gold plated cards provide instant technical guidance at real-life size for all aspects of PCB design state and electronics in general. There are 7 cards covering over 16 measurement techniques, over 100 schematic symbols, 2 value calculators (C, R), over 132 SMD footprints, 8 electronics laws & theory, and a powerful PCB design aid showing actual copper thickness, plating and finishing methods, track widths, and more. Plus, there’s an Elektor card showing their distinctive and legacy schematic drawing style and component symbols. To complete the set, there’s an Elektor cover card magnifying card for close inspection of PCB traces and SMD parts. Set comprises: 9 cards (flexible, 80 x 50 x 0.6 mm, 18K gold-plating) 1 Magnifying card 1 Carabiner key ring 1 Leather sleeve / pouch

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All you need to know about good acoustics and sound systems in performance and worship spaces! Everyone knows that the ability to hear music in balance and to understand speech is essential in any space used for performance or worship. Unfortunately, in the early 21st century, we find that buildings with good acoustics are the exception rather than the rule. Much of the fault leading to this result can be traced to the widespread perception that acoustics is a black art. In fact, scientific acoustics as developed in the last century is a well-defined engineering practice that can lead to predictable excellent results. A basic, non-engineering understanding of acoustics will help building owners, theater managers, ministers and teachers of music, performers, and other professionals to achieve their goals of excellent acoustics in venues with which they work. Performers having a basic understanding of acoustics will be able to make the most of the acoustics of the venue in which they perform. This book helps those responsible for providing good acoustics in performance and worship spaces to understand the variables and choices entailed in proper acoustic design for performance and worship. Practicing acoustical consultants will find the book a useful reference as well. The level of presentation is comfortable and straightforward without being simplistic. If correct acoustical principles are incorporated into the design, renovation, and maintenance of performance and worship venues, good acoustics will be the result.

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