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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Arduino Portenta Machine Control and Arduino Portenta H7A CAN-to-MQTT Gateway Demo Project Unboxing the Elektor LCR Meter with David Cuartielles MicroPython Enters the World of Arduino Connected Projects, SimplifiedDive Into the Arduino Cloud Introduction to TinyMLBig Is Not Always Better Arduino K-Way Writing Arduino Sketches Just Got Better Get to Know Arduino Getting Started with the Portenta X8Manage Software Securely with Containers Build, Deploy, and Maintain Scalable, Secure ApplicationsWith Arduino Portenta X8 Featuring NXP’s i.MX 8M Mini Applications Processor and EdgeLock SE050 Secure Element How I Automated My HomeArduino CEO Fabio Violante Shares Solutions Altair 8800 SimulatorHardware Simulation of a Vintage Computer MS-DOS on the Portenta H7Run Old-School Software on Contemporary Hardware Grow It YourselfA Digitally Controlled, Single-Box Solution for Indoor Farming Save the Planet With Home Automation?MQTT on the Arduino Nano RP2040 Connect Go Professional with Arduino Pro Smart Ovens Take a Leap Into the Future Tagvance Builds Safer Construction Sites with Arduino Santagostino Breathes Easywith Remote Monitoring that Leverages AI for Predictive Maintenance Security Flies High with RIoT Secure’s MKR-Based Solution Open-Source Brings a New Generation of Water Management to the World SensoDetect Deforestation with Sound Analysis The Mozzi Arduino Library for Sound SynthesisInsights from Tim Barrass The New Portenta X8 (with Linux!) and Max Carrier Redefine What’s Possible How Using Arduino Helps Students Build Future Skills Must-Haves for Your Electronics Workspace The Importance of Robotics in Education Dependable IoT Based Upon LoRa Unboxing the Portenta Machine Control 8-Bit Gaming with Arduboy Reducing Water Usage at Horseback Riding TracksAn IoT to Constantly Monitor Soil Humidity and Temperature Levels The Panettone ProjectA sourdough starter management and maintenance system Supporting Arduino Resellers Space Invaders with Arduino Art with ArduinoInspiring Insights from Artists and Designers Arduino Product Catalogue The Future of Arduino

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Grove is an open-source, modulated, and ready-to-use toolset and takes a building block approach to assemble electronics. This Kit includes a Base Shield to which the various Grove modules can be connected both individually, or together in various combinations to create fun and exciting projects. All of the modules use a Grove connector, which connects each of the components to a Base Shield in just a few seconds. The Base Shield can then be mounted onto an Arduino UNO board and can be programmed using the Arduino IDE. Instructions for connecting and programming the different modules are also included in this kit. This kit was elaborated in collaboration with Seeed Studio and provides the Arduino community with the opportunity to build projects with minimal effort of both wiring and coding. This kit acts as a bridge to the world of Grove and provides a flexible way for Makers to extend their projects to include other complex Grove modules. The Kit comes includes access to an online platform with all the instructions required to plug, sketch and play with the different Grove Modules. Please note: This kit does not include the Arduino Uno board. Included 1 Base Shield that is designed to fit on top of an Arduino UNO board. It comes equipped with 16 grove connectors, which, when placed on top of the UNO, provides the functionality to various pins. It includes: 7x digital connections 4x analog connections 4x I²C connections 1x UART connection 10 Grove modules included can be connected to the base shield, either through the digital, analog, or I2C connectors on the shield. Let's take a quick look at them: The LED - a simple LED that can be turned ON or OFF, or dimmed. The button - pushbutton can either be in a HIGH or LOW state. The potentiometer - a variable resistor that increases or decreases resistance when turning its knob. The buzzer - a piezo speaker that is used to produce binary sounds. The light sensor - a photoresistor that reads light intensity. The sound sensor - a tiny microphone that measures sound vibrations. The air pressure sensor - reads air pressure, using the I²C protocol. The temperature sensor - reads temperature and humidity at the same time. The accelerometer - a sensor used for orientation, used for detecting movement. The OLED screen - a screen that values or messages can be printed to. 6 Grove cables allow you to easily connect the modules to the Base Shield without any soldering required. The Arduino Sensor Kit Library is a wrapper that contains links to other libraries related to certain modules such as the accelerometer, air pressure sensor, temperature sensor, and OLED display. This library provides easy-to-use APIs that will help you build a clear mental model of the concepts you will be using.

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Make your project dreams come true: an odometer for the hamster wheel, a fully automatic control of your ant farm with web interface, or the Sandwich-O-Mat – a machine that toasts and grills sandwiches of your choice. With the Arduino and the DIY or Maker movement, not only did entry into microcontroller programming become child's play, but a second development also took place: Resourceful developers brought small boards – so-called shields or modules – to the market, which greatly simplified the use of additional hardware. The small modules contain all the important electronic parts to be connected to the microcontroller with a few plug-in cables, eliminating the need for a fiddly and time-consuming assembly on the plug-in board. In addition, it is also possible to handle tiny components that do not have any connecting legs (so-called SMDs). Projects Discussed Arduino seeks connection BMP and introduction to libraries, I²C Learn I/O basics with the multi-purpose shield I²C LCD adapter and DOT matrix displays LCD keypad shield Level converter W5100: Internet connection I/O expansion shield Relays and solid-state relays The multi-function shield: A universal control unit Connecting an SD card reader via SPI Keys and 7-segment displays 16-bit ADC MCP4725 DAC 16-way PWM servo driver MP3 player GPS data logger using an SD card Touch sensor Joystick SHT31: Temperature and humidity VEML6070 UV-A sensor VL53L0X time-of-flight Ultrasonic distance meter MAX7219-based LED DOT matrix display DS3231 RTC Port expander MCP23017 433 MHz radio MPU-650 gyroscope ADXL345 accelerometer WS2812 RGB LEDs Power supply MQ-xx gas sensors CO2 gas sensor ACS712 current sensor INA219 current sensor L298 motor driver MFRC522 RFID 28BYJ-48 stepper motor TMC2209 silent step stick X9C10x digital potentiometer ST7735 in a color TFT display e-Paper display Bluetooth Geiger counter SIM800L GSM module I²C multiplexer Controller Area Network

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Quickly and easily get started with learning electronics using the Arduino Uno Starter Kit, which have a universal appeal to fans at home, businesses, and schools alike. No prior experience is required, as the kits introduce both coding and electronics through fun, engaging, and hands-on projects. You can use the starter kit to teach students about current, voltage, and digital logic as well as the fundamentals of programming. There’s an introduction to sensors and actuators and how to understand both digital and analog signals. Within all this, you’ll be teaching students how to think critically, learn collaboratively, and solve problems. Projects Book GET TO KNOW YOUR TOOLS an introduction to the basics SPACESHIP INTERFACE design the control panel for your starship LOVE-O-METER measure how hot-blooded you are COLOR MIXING LAMP produce any colour with a lamp that uses light as an input MOOD CUE clue people into how you're doing LIGHT THEREMIN create a musical instrument you play by waving your hands KEYBOARD INSTRUMENT play music and make some noise with this keyboard DIGITAL HOURGLASS a light-up hourglass that can stop you from working too much MOTORIZED PINWHEEL a coloured wheel that will make your head spin ZOETROPE create a mechanical animation you can play forward or reverse CRYSTAL BALL a mystical tour to answer all your tough questions KNOCK LOCK tap out the secret code to open the door TOUCHY-FEEL LAMP a lamp that responds to your touch TWEAK THE ARDUINO LOGO control your personal computer from your Arduino HACKING BUTTONS create a master control for all your devices! Included 1x Projects Book (170 pages) 1x Arduino Uno 1x USB cable 1x Breadboard 400 points 70x Solid core jumper wires 1x Easy-to-assemble wooden base 1x 9 V battery snap 1x Stranded jumper wires (black) 1x Stranded jumper wires (red) 6x Phototransistor 3x Potentiometer 10 kΩ 10x Pushbuttons 1x Temperature sensor [TMP36] 1x Tilt sensor 1x alphanumeric LCD (16x2 characters) 1x LED (bright white) 1x LED (RGB) 8x LEDs (red) 8x LEDs (green) 8x LEDs (yellow) 3x LEDs (blue) 1x Small DC motor 6/9 V 1x Small servo motor 1x Piezo capsule 1x H-bridge motor driver 1x Optocouplers 2x Mosfet transistors 3x Capacitors 100 uF 5x Diodes 3x Transparent gels 1x Male pins strip (40x1) 20x Resistors 220 Ω 5x Resistors 560 Ω 5x Resistors 1 kΩ 5x Resistors 4.7 kΩ 20x Resistors 10 kΩ 5x Resistors 1 MΩ 5x Resistors 10 MΩ

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Although the Arduino isn’t a novelty any longer, there are still many beginners who want to try programming and development with a microcontroller, and to them, it is all new. All beginnings can be difficult, though they should be light and enjoyable. You do not need much or expensive equipment for the examples. The circuits are built on a small breadboard, and, if necessary, connected to an Arduino Uno, which you can program on a Windows PC. You will find clear examples of how to build all circuits, ensuring easy and error-free reproduction. Projects Discussed Current & Voltage – How it all began Arduino Hardware Arduino Programming The Electrical Circuit Measuring with the Multimeter Circuit Diagrams and Breadboards Creating Circuit Diagrams Breadboard Views with Fritzing Online Circuit Simulation Indispensable: Resistors (Part 1) Hands-on with Resistors (Part 2) Variable Resistors Diodes: One-way Street for Current The Transistor Switch Electromagnetism Relays and Motors op-amps: Operational Amplifiers Capacitors The NE555 Timer PWM and Analogue Values with Arduino 7-Segment Temperature Display Introduction to Soldering and LCDs

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The Elektor Super Servo Tester can control servos and measure servo signals. It can test up to four servo channels at the same time. The Super Servo Tester comes as a kit. All the parts required to assemble the Super Servo Tester are included in the kit. Assembling the kit requires basic soldering skills. The microcontroller is already programmed. The Super Servo Tester features two operating modes: Control/Manual and Measure/Inputs. In Control/Manual mode the Super Servo Tester generates control signals on its outputs for up to four servos or for the flight controller or ESC. The signals are controlled by the four potentiometers. In Measure/Inputs the Super Servo Tester measures the servo signals connected to its inputs. These signals may come from for instance an ESC, a flight controller, or the receiver or another device. The signals are also routed to the outputs to control the servos or the flight controller or ESC. The results are shown on the display. Specifications Operating modes Control/Manual & Measure/Inputs Channels 3 Servo signal inputs 4 Servo signal outputs 4 Alarm Buzzer & LED Display 0.96' OLED (128 x 32 pixels) Input voltage on K5 7-12 VDC Input voltage on K1 5-7.5 VDC Input current 30 mA (9 VDC on K5, nothing connected to K1 and K2) Dimensions 113 x 66 x 25 mm Weight 60 g Included Resistors (0.25 W) R1, R3 1 kΩ, 5% R2, R4, R5, R6, R7, R9, R10 10 kΩ, 5% R8 22 Ω, 5% P1, P2, P3, P4 10 kΩ, lin/B, vertical potentiometer Capacitors C1 100 µF 16 V C2 10 µF 25 V C3, C4, C7 100 nF C5, C6 22 pF Semiconductors D1 1N5817 D2 LM385Z-2.5 D3 BZX79-C5V1 IC1 7805 IC2 ATmega328P-PU, programmed LED1 LED, 3 mm, red T1 2N7000 Miscellaneous BUZ1 Piezo buzzer with oscillator K1, K2 2-row, 12-way pinheader, 90° K5 Barrel jack K4 1-row, 4-way pin socket K3 2-row, 6-way boxed pinheader S1 Slide switch DPDT S2 Slide switch SPDT X1 Crystal, 16 MHz 28-way DIP socket for IC2 Elektor PCB OLED display, 0.96', 128 x 32 pixels, 4-pin I²C interface Links Elektor Magazine Elektor Labs

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Build Your Own Vintage Radio Broadcaster The Elektor AM Transmitter Kit allows streaming audio to vintage AM radio receivers. Based on a Raspberry Pi Pico microcontroller module, the AM Transmitter can transmit on 32 frequencies in the AM band, from 500 kHz up to 1.6 MHz in 32 steps of approx. 35 kHz. The frequency is selected with a potentiometer and shown on a 0.96" OLED display. A pushbutton allows toggles the transmitting mode between On and Off. The range of the transmitter depends on the antenna. The onboard antenna provides a range of a few centimeters, requiring the AM Transmitter to be placed close to or inside the radio. An external loop antenna (not included) can be connected to increase the range. The Elektor AM Transmitter Kit comes as a kit of parts that you must solder to the board yourself. Features The board is compatible with a Hammond 1593N enclosure (not included).A 5 VDC power supply with micro-USB connector (e.g., an old phone charger) is needed to power the kit (not included). Current consumption is 100 mA. The Arduino software (requiring Earle Philhower’s RP2040 Boards Package) for the Elektor AM Transmitter Kit plus more information is available at the Elektor Labs page of this project. Component List Resistors R1, R4 = 100 Ω R2, R3, R8 = 10 kΩ R5, R6, R9, R10, R11 = 1 kΩ R7 = optional (not included) P1 = potentiometer 100 kΩ, linear Capacitors C1 = 22 µF 16V C2, C4 = 10 nF C3 = 150 pF Miscellaneous K1 = 4×1 pin socket K2, K3 = 3.5 mm socket Raspberry Pi Pico pushbutton, angle mount 0.96" monochrome I²C OLED display PCB 150292-1

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This hardware kit is especially prepared for 'The Official ESP32 Book'. The kit contains all the components used in the projects in this book. With the help of this hardware kit it should be easy and fun to build the projects in the book. Included 1x ESP32 DevKitC 8x LEDs (RED) 1x LED (GREEN) 2x push-button 8x 330 ohm resistors 1x Buzzer 1x RGB LED 1x TMP36 temperature sensor chip 1x DHT11 temperature and humidity chip 1x MCP23017 (DIL 28 package) 1x LDR 1x BC108 (or any other PNP) transistor 1x 7 segment LED 1x Small Microphone Module 1x I²C LCD 1x SG90 servo 1x 4x4 Keypad 8x Female-Male jumpers 4x Male-Male jumpers 1x Small breadboard

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Grove is a modular electronic platform for quick prototyping. Every module has one function, such as touch sensing, creating audio effect and so on. Just plug the modules you need to the base shield, then you are ready to test your idea buds. This Grove Starter Kit for Arduino is upgraded version of our Grove Starter Kit plus. Frequently used modules have been included in this kit to help you create your concept. The changes Optimize the internal slot structure, using technology to make our products inside plastic boxes more regularized, more protective. Upgrade Instructions for creative poster form, more streamlined and intuitive description for each Grove-Sensor. Grove-LED increased from three separate PCBA into a. But will still provide three different colors of LED light bulbs for you. To consider the overall playability of the product experience, we optimized the two Grove-Sensors. Grove-Sound Sensor upgrade to V1.2; Grove-Temperature Sensor upgrade to the new SMD V1.1. Data line upgrade from 24AWG Grove Cable is 26 AWG Grove Cable, wire length is adjusted to the length of 200mm unified model, the number was adjusted to 10. Screen perfect upgrade for the Grove-LCD RGB Backlight, color screen makes further enhanced playability experience. Included 1x Base Shield 1x Grove LCD RGB Backlight 1x Grove Smart Relay 1x Grove Buzzer 1x Grove Sound Sensor 1x Grove Touch Sensor 1x Grove Rotary Angle Sensor 1x Grove Temperature Sensor 1x Grove LED 1x Grove Light Sensor 1x Grove Button 1x DIP LED Blue-Blue 1x DIP LED Green-Green 1x DIP LED Red-Red 1x Mini Servo 10x Grove Cables 1x 9 V to Barrel Jack Adapter 1x Grove starter kit Manual 1x Green Plastic Box Downloads Schematic (PDF) Schematic (Eagle) Grove Button Source File Grove LED Source File Grove Buzzer Source File Grove Rotary Angle Sensor Source File Grove Relay Source File Base Shield Source File Grove Sound Sensor Source File Grove Buzzer Source File

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