Fun Electronics

Have you ever wondered if the objects in your house are radioactive or not? Does the apple in your fridge give off radiation? Are the books on your shelves giving off gamma rays? You can easily find that out by building your Geiger counter! Thanks to the serial logging function you can track exposure over time, and you can use the mute button to detect radiation without any noise. Detect beta and gamma radiation with your own portable Geiger counter! Features 100% Open Source Hardware! Sensitive to beta and gamma radiation LED and piezo speaker alert you to detected radioactivity. Mute button for silent operation. An ATtiny2313 microcontroller brain that is begging to be hacked! Support for several common Geiger-Müller tubes: SI-3BG, SI-1G, and SBM-20. HV supply can be adjusted from ~300-600 V. Headers for serial (9600 baud), in-circuit programming of the AVR microcontroller, and pulse output (to connect the Geiger counter to other stuff!) Serial data logging! Counts per second (CPS), counts per minute (CPM), and equivalent dose are reported via the serial port once a second. Included Geiger counter kit incl. PCB and all parts 1x SBM-20 Geiger-Müller tube 1x Laser cut acrylic case Downloads Assembly Instructions Case Assembly Instructions Design Files Source Code Usage Instructions

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You've seen them online or in hilarious video's your colleagues sent you and now you can build one yourself, as a simple solderless kit! Including all you need except the batteries. Don't know it? There is a lot you can say about this kit, but actually all you need to do is watch a video and fall in love! A must have for each office!

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Raspberry Pi-based Eye Catcher A standard sand clock just shows how time passes. In contrast, this Raspberry Pi Pico-controlled sand clock shows the exact time by “engraving” the four digits for hour and minute into the layer of sand. After an adjustable time the sand is flattened out by two vibration motors and everything begins all over again. At the heart of the sand clock are two servo motors driving a writing pen through a pantograph mechanism. A third servo motor lifts the pen up and down. The sand container is equipped with two vibration motors to flatten the sand. The electronic part of the sand clock consists of a Raspberry Pi Pico and an RTC/driver board with a real-time clock, plus driver circuits for the servo motors. A detailed construction manual is available for downloading. Features Dimensions: 135 x 110 x 80 mm Build time: 1.5 to 2 hours approx. Included 3x Precut acrylic sheets with all mechanical parts 3x Mini servo motors 2x Vibration motors 1x Raspberry Pi Pico 1x RTC/driver board with assembled parts Nuts, bolts, spacers, and wires for the assembly Fine-grained white sand

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A great way to explain the workings of an electronic circuit is to position the discrete parts on the board exactly as in the schematic. Press the button and this 'Elektor Classic' responds with 1 of 3 siren sounds: police, ambulance, or fire brigade. The kit is composed of through-hole parts only and includes a wooden desktop stand. A full explanation of the circuit operation appears on the back of the circuit board. Features Realistic Sound from Onboard Speaker Unique PCB Layout Equals Schematic Elektor Heritage Circuit Symbols Tried & Tested by Elektor Labs Educational & Geeky Project Through-Hole Parts Only Included Printed Circuit Board All Components Wooden Desktop Stand

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The TV-B-Gone universal remote control allows you to turn virtually any TV On or OFF. You control when you see TV, rather than what you see. The TV-B-Gone Keychain remote is so small that it easily fits in your pocket so that you have it handy whenever you need it, wherever you go: bars, restaurants, laundromats, ballparks, arenas, etc.The TV-B-Gone Kit is a great way to teach about electronics. When soldered together, it allows you to turn off almost any television within 150 feet or more. It works on over 230 total power codes – 115 American/Asian and another 115 European codes. You can select which zone you want during kit assembly.This is an unassembled kit which means that soldering and assembly is required – but it’s very easy and a great introduction to soldering in general.This kit makes the popular TV-B-Gone remote more fun because you created it yourself with some basic soldering and assembly! Show your friends and family how technologically savvy you are, and entertain them with the power of the TV-B-Gone!The kit is powered by 2x AA batteries and the output comes from 2x narrow beam IR LEDs and 2x wide-beam IR LEDs.IncludedAll required parts/componentsRequiredTools, soldering iron, and batteriesDownloadsGitHub

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Features Processor: 32-bit, 160MHz Storage: 4 MB RAM: 80 KB Display: 1.4″ 128 x 128 Full-color TFT Connectivity: WiFi Build time: 2 hours Programming: C++ (Arduino), CircuitBlocks, Python Parts Main circuit board Acrylic casing Metal soldering iron stand Sponge Soldering iron Solder wire Cross screwdriver AAA alkaline batteries LCD display Micro USB cable Bag with small components Battery holder Here you can find the guide to assemble your CircuitMess Nibble – DIY Game Console.

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The XL741 kit is sold as an easy-to-build soldering kit. It includes the circuit board, resistors, transistors and capacitor that make up the electrical circuit as well as printed assembly instructions. The kit also comes complete with the 'IC Leg' stand, and eight colour-coded thumbscrew terminal posts. To build the XL741 kit, fundamental electronic soldering skill and tools are required. Soldering tools are not included, and you will need to use your own. You will need: a soldering iron, solder and small ('flush') wire clippers, as well as a Phillips head screwdriver The kit features easy construction and should take roughly an hour to build. Kit size The XL741 kit printed circuit board is 5.215' x 3.175' (13.25 cm x 8.06 cm) in area, and (nominally) 0.100' (2.54 mm) thick. Including the 'Integrated Circuit Legs' stand and terminal posts, the overall size of the assembled kit is 5.215' x 3.9' x 1.70' (13.25 cm x 9.9 cm x 4.3 cm). Materials and construction The decorative stand is smooth to the touch and made of anodised aluminium. The circuit board in the kit is extra thick for rigidity and made with a matte-black solder mask finish. It comes pre-fitted with eight 8-32 threaded inserts for the terminal posts. All materials (including the circuit board and stand) are RoHS compliant (lead-free). The included terminal post screws are stainless steel thumbscrews with colour-coded plastic caps (1 red, 1 black, 6 grey).

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Looking for a fun DIY Christmas project? Assemble and program this extra-large Poly Reindeer figurine and make its LEDs shine all the colors of the rainbow! Ideal for both beginners and advanced makers! This educational and fun kit combines soldering and programming skills in one XL-sized project. First, you will need to solder some simple components onto the copper plated circuit board. The components include fancy RGB LEDs that have a special diffused effect. Once the soldering work is finished, you will be able to program the colors and light effects of the different LEDs thanks to the onboard Arduino Nano Every. The Arduino will be pre-programmed with some basic LED effects, so your kit will work once you power it with the included adaptor. Or you can choose to write your own code based on the available example code. Programmable add-ons The printed circuit board of this project is designed especially so you can add different add-ons. For example, add an OLED screen to display messages or program it to countdown the days until Christmas! Or add an IoT Tuya chip so your project can communicate with your smartphone. You can even add a sound microphone, motion sensor or light sensor. Features XL-sized & copper plated circuit board (PCB) in the shape of a polymetric reindeer 22 addressable (programmable) RGB LEDs 14 x 5 mm RGB LEDs 10 x 8 mm RGB LEDs Arduino Nano Every Onboard push button USB A to USB micro cable for programming USB A to USB B cable for power supply Wooden holder Complete manual and video available in 5 languages Example code for Arduino available Educational & fun for all ages and skill levels Expandable with lots of add-ons: an OLED screen a smart IoT sensor to connect with your smartphone a microphone sensor and more! Not included: soldering iron, soldering tin, pliers and an soldering mat Specifications Dimensions: 168 x 270 mm Power supply: 5 V/2.1 A max. (cable included)

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Included 76x 10 mm 40 kHz transducers 1x Arduino Nano 1x L298N Dual Motor Drive Board 1x Power Switch 1x DC Adaptor 9 V 1x Jumper Wires 6x Black and Red Wire Some Exposed Wire 1x 3D-Printed TinyLev Documents Instructables Scientific Information

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The EggBot is a friendly art robot that can draw on spherical or egg-shaped objects from the size of a ping pong ball to that of a small Grapefruit – roughly 1.25 to 4.25 inches in diameter (3 - 10 cm). You can use EggBot on all kinds of spherical objects. Use it to create the most impressive Easter eggs, personalize Christmas ornaments or even golf balls or light bulbs. The EggBot is not just a cool gadget; it’s also a great introduction to CNC (computer numerical control) and do-it-yourself robotics. All of the electronics and software are designed to be hackable and repurposable, so you could easily computer control an Etch-a-Sketch or create something totally new. The EggBot software allows you to control the ‘bot from within Inkscape – a superb freeware illustration program – on Mac, Windows, or Linux computers. You can draw an image directly, trace a photograph, or import designs from other programs. You can also control the EggBot directly from many other programs that have the ability to send serial commands over a USB port. The EggBot kit in the Elektor online store is the most popular of all; the Deluxe Version! The EggBot kits are recommended for ages 10 and up, although for kids under 13 adult supervision is recommended. Universal power supply included! (with US-EU adapter).

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Listen to nature with modern electronics!Human ears cannot hear the cries of bats? With the right equipment, you can – and you can do much more.Make your own premium ultrasound detector and experience it yourself! With this construction kit, this will be an easy exercise that cannot go wrong. The kit contains a circuit board that is already equipped with various SMD components. You only have to solder some elements yourself and wire the circuit board with the microphone, the loudspeaker and the adjusters. Due to modern integrated circuits, the detector will be very sensitive and powerful.Once it is built, you can start exploring and discovering: with the detector, the bat's ultrasounds can become audible for humans. That way, you can trace those little flight artists in complete darkness even at places where they would hunt for insects without being noticed. But not only bats send ultrasounds, there are also many technical devices which do the same. You will be surprised at the number of various inaudible ultrasounds that surround us. Give your ears super powers. 20 kHz are not enough.Required Soldering iron 9 V battery

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The Mendocino Motor AR O-8 is a magnetically levitated, solar powered electric motor as a kit.Light Becomes MovementThe solar-powered Mendocino motor seems to float in the air. At first glance, you can't see why the rotor is turning at all. This is the magic of the motor.The Lorentz force is a very small electrical force. In a classroom setting, it is detected by a current swing in the magnetic field. With the Mendocino motor, we have succeeded in developing a beautiful application that uses this weak force for propulsion. Due to its concealed base magnet, the motor will fascinate technically inclined observers.In bright sunlight, the motor can reach a speed of up to 1,000 rpm. More impressive, however, is that even the faint glow of an ample tea light (D = 6 cm with a flame height of about 2 cm) is sufficient to drive the motor. The motor is not yet an alternative source of energy, even though it looks tempting. Presumably, it will remain an attractive model until a resourceful mind disproves this assumption.Dimensions All solar cells 65 x 20 mm Mirror diameter: 25 mm Rotor weight: approx. 150 g Model length: 160 mm Model width: 85 mm Frame height: approx. 85 mm Frame material: black acrylic Tube made of highly polished aluminum Mirror color: silver The Mendocino motor’s easy-to-follow instruction manual includes more than 70 illustrations. It describes a safe and practical approach to construction but also gives you the freedom to try your solutions.Partly Pre-Assembled KitA portion of the kit comes pre-assembled. Bonding the borosilicate glass pane to the acrylic surface requires specialized knowledge and aids. We do not want to impose this on the hobbyist. For instance, the base magnet is attached to the aluminum tube.As a hobbyist, you will need some know-how and appropriate tools: carpet knife, soldering iron and tin, hot glue, pliers, and a clamp or ferrule to fix the supplied assembly aid. A lot of fun is guaranteed!

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Raspberry Pi Pico is a great solution for servo control. With the hardware PIO, the Pico can control the servos by hardware, without usage of times/ interrupts, and limit the usage of the MCU. Driving the six servos on this robotic arm takes very little MCU capacity, so the MCU can deal with other tasks easily. This 6 DOF robotic arm is a handy tool for teaching and learning robotics and Pico usage. There are five MG996s (four are needed in the assembly and one for backup) and three 25-kg servos (two needed in the assembly and one for backup). Note that for the servos the angle ranges from 0° to 180°. All the servos need to be preset to 90° (with logic HIGH 1.5 ms duty) before the assembly to avoid servo damage during movement. This product includes all the necessary items needed to create a robotic arm based on Pico and Micropython. Included 1x Raspberry Pi Pico 1x Raspberry Pi Pico Servo Driver 1x Set '6 DOF Robot Arm' 1x 5 V/5 A Power Supply 2x Backup Servo Downloads GitHub Wiki Assembly Guide Assembly Video

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Weatherproof (certified IP55) Fresnel IR lens to optimize motion detection Mount compatible with all models of Raspberry Pi (all A, B, and Zero models) Easy access to the Raspberry Pi’s internal components and ports Can be secured with a padlock Nylon camera attachment strap for securing outside Rear cable access Fasteners and spacers for attaching electronics No soldering required Rear attachments for modular upgrades Please note, you need to provide a Raspberry Pi.

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The AxiDraw is a simple, modern, precise, and versatile pen plotter, capable of writing or drawing on almost any flat surface. It can write with your favorite fountain pens, permanent markers, and other writing implements to handle an endless variety of applications. Its unique design features a writing head that extends beyond the machine, making it possible to draw on objects bigger than the device itself. Designed for high performance AxiDraw V3 is an all-new version of the AxiDraw, redesigned from the ground up for high performance. It features smooth rolling wheels on custom aluminum extrusions, specially designed for high stiffness and light weight. Its sturdy, rigid construction gives it finer quality output and in most applications allows it to operate at up to twice the speed of the previous AxiDraw. Designed for longevity AxiDraw V3 features a new, highly repairable, field-serviceable design for a long life. While no parts on AxiDraw require regular replacement, this new machine is built with a screws not glue design approach throughout, where essentially every component can be replaced by the end user if it should ever become necessary. Applications The AxiDraw is an extremely versatile machine, designed to serve a wide variety of everyday and specialized drawing and writing needs. You can use it for almost any task that might typically be carried out with a handheld pen. It allows you to use your computer to produce writing that appears to be handmade, complete with the unmistakable appearance of using a real pen (as opposed to an inkjet or laser printer) to address an envelope or sign one's name. And it does so with precision approaching that of a skilled artist, and -just as importantly- using an arm that never gets tired. Formal invitations Place cards for formal dining Signing diplomas and other certificates Addressing envelopes and boxes Handwritten wine lists and menus at restaurants Decorating lunch bags Computer generated artwork Technical drawing Thank you notes and cards Writing signatures Specifications Performance Usable pen travel (inches): 11.81 × 8.58 inches (Just over US letter size) Usable pen travel (millimeters): 300 × 218 mm (Just over A4 size) Vertical pen travel: 0.7 inch (17 mm) Maximum XY travel speed: 15 inches (38 cm) per second Native XY resolution: 2032 steps per inch (80 steps per mm) Reproducibility (XY): Typically better than 0.005 inches (0.1 mm) at low speeds. Physical Major structural components are machined and/or folded aluminum. Holds pens and other drawing instruments up to 5/8' (16 mm) diameter. Overall dimensions: Approximately 21.5 × 16 × 4 inches (55 × 40.5 × 10 cm) Maximum height with cable guides: Approximately 8.5 inches (22 cm) Footprint: Approximately 17 × 3.5 inches (43 × 9 cm) Weight: 4.75 Lb (2.2 kg) Software Compatible with Mac, Windows, and Linux Drive directly from within Inkscape, using the AxiDraw extension. Comprehensive user guide available for download. Driver software software free to download and open source Internet access is required to download software. Additionally, AxiDraw Merge software available at no cost to AxiDraw owners. Programming interfaces Note: Programming is not required to use the AxiDraw. Stand-alone command line interface (CLI) Available AxiDraw Python API RESTful API available for full machine control, stand-alone or accessible by running RoboPaint in the background. Simplified 'GET-only' API available as well, for use in programming environments (such as Scratch, Snap) that permit only retrieval of URLs. Direct EiBotBoard (EBB) command protocol available for use in any programming environment that supports communication with USB-based serial ports. Code that generates SVG files can also be used to (indirectly) control the machine. Included AxiDraw V3 writing and drawing machine (fully assembled, tested, and ready to use) Multi-plug power supply with EU adapter USB cable Easel (Board and clips) for paper holding Downloads User Guide

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Arduboy is a miniture game development system the size of a credit card based on the popular open source Arduino platform. Learn to program/code with lots of tutorials and an active community of developers, develop and share your own games using Arduino software via the USB-Cable. Use your PC/Mac/Linux machine to download over 200 unique games created by members of the Arduboy Community.Features Processor: ATmega32u4 (same as Arduino Leonardo & Micro) Memory: 32 KB Flash, 2.5 KB RAM, 1 KB EEPROM Inputs: 6 Momentary Tactile Buttons Outputs: 128 x 64 1-bit OLED, 4 Ch. Piezo Speaker & Blinky LED Battery: 180 mAh Thin-Film Lithium Polymer Connectivity: Micro-USB 2.0 with built-in HID profile Programming: Arduino IDE, Arduboy Game Loader, GCC & AVRDude Open source gamingAnyone can make games for the Arduboy! Free online tutorials guide you through a step by step process on how to develop your own software! There are already plenty of examples to learn from. Ever wanted to create a level or map for your favorite game, or make your favorite character jump higher? Now is your chance!Super retroDesigned to remind you of a more simple time in the world of gaming, the Arduboy brings true 8-bit gaming into the 21st century with style. The black and white screen invites you to involve your imagination once again while gaming.Durable constructionA polycarbonate front, ultra thin circuit board, and stamped aluminum metal back is the ultimate combination. A rechargeable lithium polymer battery provides over 8 hours of battery life, and the same cable you use to charge can be used to upload new games! At only 5 mm thick, Arduboy can live in your pocket (or even wallet) and is thinner than nearly any mobile phone!Downloads Schematics GitHub Documentation

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This is a kit for a pan-tilt mechanism explicitly designed for Pixy2. After assembling the kit and connecting it to Pixy2, you'll be able to follow colored objects using the Pan/Tilt demo. It includes two laser-cut plastic pieces for the base, two different servos for the pan and tilt axes, and all the mounting hardware and cable ties you will need to assemble. Features The pan-tilt mechanism for Pixy2 is redesigned, making it smaller and faster than the pan-tilt for the original Pixy. All necessary hardware is included. The pan-tilt base is attached directly to an Arduino with Arduino-compatible hole-pattern and includes stand-offs and fasteners. Several pan-tilt demos are provided that can run using either Arduino, Raspberry Pi or stand-alone (no controller). Complete assembly instructions

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Features Ask about the weather forecast for your area Hear a joke Ask him to sing you a song Set a stopwatch Make Spencer display custom animations Laugh at his corny popular culture references Included Spencer’s circuit board that includes a pre-soldered 144-pixel LED grid The brain board – does smart stuff and includes a dual-core processor, a 16 MB flash memory chip, and power-management circuitry Acrylic casing – this protects Spencer’s innards from the outside world A big red button Various smaller components such as resistors and pushbuttons Micro USB cable for powering your Spencer 5W Speaker Instruction booklet – ready for your offline knowledge consumption Here you can find the assembly guide!

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Do you need a simple AI camera to enhance your projects?  The HuskyLens AI Camera intuitive design allows the user to control different aspects of the camera just by pressing buttons. You can start and stop learning new objects and even switch between algorithms from the device. To further reduce the need to be connected to a PC the HuskyLens AI Camera comes with a 2-inch display so you can see what's going on in real time. Specifications Processor: Kendryte K210 Image Sensor: OV2640 (2.0 Megapixel Camera) Supply Voltage: 3.3~5.0 V Current Consumption (TYP): 320 mA @ 3.3 V, 230 mA @ 5.0 V (face recognition mode; 80% backlight brightness; fill light off) Connection Interface: UART, I²C Display: 2.0-inch IPS screen with 320x240 resolution Built-in Algorithms: Face Recognition, Object Tracking, Object Recognition, Line Tracking, Color Recognition, Tag Recognition  Dimension: 52 x 44.5 mm (2.05 x 1.75') Included 1x HuskyLens Mainboard 6x M3 Screws 6x M3 Nuts 1x Small Mounting Bracket 1x Heightening Bracket 1x Gravity 4-Pin Sensor Cable

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