The intention of this book is to offer the reader understandings, ideas and solutions from the perspective of a workbench technician and electronics hobbyist. It is a descriptive text with many tables of useful data, servicing tips and supplementary notes of not so common knowledge.
Today there is a re-emerging, nostalgic interest in vinyl records and associated music entertainment gear. With this interest, there is a paralleled market for the repair of this gear.
This ‘hands-on’ servicing guide opens with fundamental considerations of the work space of repair and servicing. This includes a comprehensive discussion of essential test equipment and tools. Two chapters are devoted to obtaining servicing information about repair and obtaining spare parts. A key chapter is on general diagnosis and testing and includes the discussion of resistance, capacitance and inductance. These electrical properties are regularly in the mind of the repairer, so understanding of them is a key objective of this book. The next chapter is about time saving repair techniques and ensuring quality repair. The remaining chapters discuss entertainment equipment itself. Each of the chapters begins with an orderly discussion of the theory of operation and common and not so common problems specific to the equipment. All chapters conclude with a summary.
Valve Amplifiers are regarded by many to be the ne plus ultra when it comes to processing audio signals. The combination of classical technology and modern components has resulted in a revival of the valve amplifier. The use of toraidal-core output transformers, developed by the author over the past 15 years, has contributed to this revival. The most remarkable features of these transformers are their extremely wide frequency ranges and their very low levels of linear and nonlinear distortion.
This book explains the whys and wherefores of toroidal output transformers at various technical levels, starting with elementary concepts and culminating in complete mathematical descriptions. In all of this, the interactions of the output valves, transformer and loudspeaker form the central theme.
Next come the practical aspects. The schematic diagram of a valve amplifier often appears to be very simple at first glance, but anyone who has built a modern valve amplifier knows that a lot of critical details are hidden behind this apparent simplicity. These are discussed extensively, in connection with designs for amplifiers with output powers ranging from 10 to 100 watts. Finally, the author gives some attention to a number of special valve amplifiers, and to the theory and practice of negative feedback.
In summary, this book offers innovative solutions for achieving perfect audio quality. Do-it-yourself builders, as well as persons who want to gain a deeper technical understanding of the complex world of audio transformers, valve amplifiers and audio signal processing, will find this book a rich and useful source of information.
The universal 4 Pin connector is a white 4-pin buckled connector used on Stem, Twigs and Grove cables. The pin spacing is 2 mm. There are 10 connectors per bag. They can be used in DIY projects.
The Raspberry Pi 500 (based on the Raspberry Pi 5) features a quad-core 64-bit Arm processor, RP1 I/O controller, 8 GB RAM, wireless networking, dual-display output, 4K video playback, and a 40-pin GPIO header. It's a powerful, compact all-in-one computer built into a portable keyboard.
The built-in aluminum heatsink provides improved thermal performance, allowing the Raspberry Pi 500 to run quickly and smoothly even under heavy load.
Specifications
SoC
Broadcom BCM2712
CPU
ARM Cortex-A76 (ARM v8) 64-bit
Clock rate
4x 2.4 GHz
GPU
VideoCore VII (800 MHz)
RAM
8 GB LPDDR4X (4267 MHz)
WiFi
IEEE 802.11b/g/n/ac (2.4 GHz/5 GHz)
Bluetooth
Bluetooth 5.0, BLE
Ethernet
Gigabit Ethernet (with PoE+ support)
USB
2x USB-A 3.0 (5 GBit/s)1x USB-A 2.01x USB-C (for power supply)
PCI Express
1x PCIe 2.0
GPIO
Standard 40-pin GPIO header
Video
2x micro-HDMI ports (4K60)
Multimedia
H.265 (4K60 decode)OpenGL ES 3.1, Vulkan 1.2
SD card
microSD
Power supply
5 V DC (via USB-C)
Keyboard layout
US (QWERTY)
Dimensions
286 x 122 x 23 mm
Included
Raspberry Pi 500 (US keyboard layout, QWERTY)
Official 27 W Power Supply for Raspberry Pi (EU, white)
Official Raspberry Pi Mouse (white)
Official Raspberry Pi HDMI Cable (white, 2 m)
32 GB microSD Card with pre-installed Raspberry Pi OS
The Official Raspberry Pi Beginner's Guide (5th Edition)
Downloads
Datasheet
The Elektor Laser Head transforms the Elektor Sand Clock into a clock that writes the time on glow-in-the-dark film instead of sand. In addition to displaying the time, it can also be used to create ephemeral drawings. The 5 mW laser pointer, with a wavelength of 405 nm, produces bright green drawings on the glow-in-the-dark film. For best results, use the kit in a dimly lit room. Warning: Never look directly into the laser beam!
The kit includes all the necessary components, but soldering three wires is required.
Note: This kit is also compatible with the original Arduino-based Sand Clock from 2017. For more details, see Elektor Magazine 1-2/2017 and Elektor Magazine 1-2/2018.
Arduinonext is an initiative powered by an electronics and microcontrollers specialist team aiming to help all those who are entering in the technology world, using the well-known Arduino platform to take the next step in electronics.
We strive to bring you the necessary knowledge and experience for developing your own electronics applications; interacting with environment; measuring physical parameters; processing them and performing the necessary control actions.
This is the first title in the 'Hands-On' series in which Arduino platform co-founder, David Cuartielles, introduces board programming, and demonstrates the making of an 8-bit Sound Generator.
Elektor GREEN and GOLD members can download their digital edition here.
Not a member yet? Click here.
Digital Load for High-Current TestingFrom Necessity to Innovation
Vocal RemoverInstant Karaoke Circuit
Audio A/B Selector With Gain ControlSwitches from Microphone to Line Inputs
Better Charging for the LIR2032Be Kind to Your Coin Cells
Touch Sensing Made SimpleA DIY Guide for Any Microcontroller
Universal Infrared Remote SwitchA New Life for Old Remotes
Microcontroller-Powered Moo BoxMaking Playful Sounds With a Microcontroller
USB Battery Interface
Powering Low-Draw Devices With Power BanksA “Stay Alive” Solution
Small Class-A Audio Amplifier With Current OutputDrive Speakers with Current Instead of Voltage
Pseudo-Balanced ModuleHigh CMRR with Unbalanced Audio Links
Ni-MH Cells Automatic ChargerRefill All Your Battery Packs in One Go!
Thyristor-Based Power Supply Protection
Fingerprint Sensor SwitchA Useful Proof-of-Identity Device
DC-DC 3-A Power ConverterUpgrade Your Fixed-Voltage Sources
Remote Water Heater MonitorVoltage and Current Detection for AC Lines
Attenuators for Audio Signals (1)Adjustable Via Jumpers
Pimp My Car Battery Charger (Part 1)Don’t Throw It Away, Mod It!
A Board for the Blue OnePCB for Alps Motorized Potentiometer with Feedback
50-Hz Reference from 60-Hz Mains VoltageHow to Use 50-Hz Electronics in 60-Hz Environments
Digital IsolatorsRealizing Galvanic Isolation Easily
Compact 12-W Hi-Fi Mono AmplifierSmall But Powerful
LM386 Ramp Generator
Three-Phase GeneratorWith Raspberry Pi Pico
Door Opener for the Musically Talented
Elektor Classic: Surf SynthesizerOcean Watersports Background Sound Generator (OWBSG)
Pimp my Car Battery Charger (Part 2)Don’t Throw It Away, Mod It!
Lamp Current MonitorWith a Raspberry Pi Pico
Infrared Telegraphy
Fnirsi SWM-10Repair Battery Packs With This Portable Intelligent Spot Welding Machine
Stereo Audio Codec for the ESP32 and Co.No Need to Be Afraid of Audio Measurement Technology
Tin Soldering TechniquesMake Them Well Right Away!
Attenuators for Audio Signals (2)Switching Via Relays
USB-C PowerDrawing Power from USB-C Power Adapters
Three Circuits with Two and Three Counter ICs4017 ICs Working Together
Active Components – The Diode
A Timer For Ultra-Long DelaysSet It, and Forget It!
Jack In and Jack OutA Useful Insert Option for Audio Circuits
Power an ESP32 from a Single Li-ion Cell
Hexadoku
The PCW10A soldering mat is the ultimate solution for any soldering or repair project. Measuring 450 x 300 mm, this silicone mat provides a generous work surface that is heat-resistant up to 450°C, making it ideal for use with a range of (soldering) tools and equipment. It is the perfect size for your workbench and provides ample space for all your tools and components. The PCW10A soldering mat comes with several convenient features to make your repair work easier and more efficient. The built-in storage boxes provide a convenient place to keep your tools and components organized, while the powerful magnets hold small parts securely in place. These features ensure that you can work more efficiently and effectively, reducing the risk of lost or misplaced items. The PCW10A soldering mat also features a non-slip surface that provides a stable and secure work environment, preventing your equipment from slipping or sliding during use. Additionally, the mat is easy to clean, allowing you to maintain a hygienic workspace that is free of debris and other contaminants. In addition, the mat also features a printed grid to help you measure and cut materials accurately. Whether you are a professional technician or a DIY enthusiast, the PCW10A soldering mat is an essential tool for anyone who needs a reliable and durable work surface for their repair and soldering projects. With its durable construction, ample workspace, and convenient storage options, you can tackle any project with confidence and ease. Features Silica gel working mat (blue) Size: 450 x 300 mm Edge thickness: 6.5 mm Various magnetic sections 3 storage boxes Heat-resistant 450°C
CrowBot BOLT is an ESP32-controlled, intelligent, simple and easy-to-use open source robot car. It is compatible with the Arduino and MicroPython environments, with graphical programming via Letscode. 16 learning courses with interesting experiments are available.
Features
16 lessons in three languages (Letscode, Arduino, Micropython), fast learning and fun experiments
Compatible with Arduino, MicroPython development environment, using Letscode graphical programming, easy to use
Strong scalability, with a variety of interfaces, can be expanded and used with Crowtail modules
A variety of remote control modes, you can use the infrared remote control and joystick to control the car
Specifications
Processor
ESP32-Wrover-B (8 MB)
Programming
Letscode, Arduino, Micropython
Control method
Bluetooth Remote Control/Infrared Remote Control
Input
Button, Light sensor, Infrared Receiving Module, Ultrasonic Sensor, Line Tracking Sensor
Output
Buzzer, Programmable RGB Light, Motor
Wifi & Bluetooth
Yes
Light sensor
Can realize the function of chasing light or avoiding light
Ultrasonic Sensor
When an obstacle is detected, the driving route of the car can be corrected to avoid the obstacle
Line Tracking Sensor
Can make the car move along the dark/black lines, intelligently judge and correct the driving path
Buzzer
Can make the car sound/whistle, bringing a more direct sensory experience
Programmable RGB Light
Through programming, it can show colorful lights in different scenes
Infrared receiver
Receive infrared remote control signals to realize remote control
Interfaces
1x USB-C, 1x I²C, 1x A/D
Motor type
GA12-N20 Micro DC Gear Motor
Operating temperature
-10℃~+55℃
Power supply
4x 1.5 V batteries (not included)
Battery life
1.5 hours
Dimensions
128 x 92 x 64 mm
Weight
900 g
Included
1x Chassis
1x Ultrasonic Sensor
1x Battery Holder
2x Wheels
4x M3x8 mm Screws
2x M3x5 mm Copper Column
2x Side Acrylic Plates
1x Front Acrylic Plates
1x Screwdriver
2x 4 Pin Crowtail Cable
1x USB-C Cable
1x Infrared remote control
1x Instructions & Line Track Map
1x Joystick
Downloads
Wiki
CrowBot-BOLT_Assembly-Instruction
Joystick-for-CrowBot-BOLT_Assembly-Instruction
CrowBot_BOLT_Beginner’s_Guide
Designing Documents of CrowBot
Designing Documents of Joystick
Lesson Code
3D Model
Factory Source Code
This book details the use of the ARM Cortex-M family of processors and the Arduino Uno in practical CAN bus based projects. Inside, it gives a detailed introduction to the architecture of the Cortex-M family whilst providing examples of popular hardware and software development kits. Using these kits helps to simplify the embedded design cycle considerably and makes it easier to develop, debug, and test a CAN bus based project. The architecture of the highly popular ARM Cortex-M processor STM32F407VGT6 is described at a high level by considering its various modules. In addition, the use of the mikroC Pro for ARM and Arduino Uno CAN bus library of functions are described in detail.
This book is written for students, for practising engineers, for hobbyists, and for everyone else who may need to learn more about the CAN bus and its applications. The book assumes that the reader has some knowledge of basic electronics. Knowledge of the C programming language will be useful in later chapters of the book, and familiarity with at least one microcontroller will be an advantage, especially if the reader intends to develop microcontroller based projects using CAN bus.
The book should be useful source of reference to anyone interested in finding an answer to one or more of the following questions:
What bus systems are available for the automotive industry?
What are the principles of the CAN bus?
What types of frames (or data packets) are available in a CAN bus system?
How can errors be detected in a CAN bus system and how reliable is a CAN bus system?
What types of CAN bus controllers are there?
What are the advantages of the ARM Cortex-M microcontrollers?
How can one create a CAN bus project using an ARM microcontroller?
How can one create a CAN bus project using an Arduino microcontroller?
How can one monitor data on the CAN bus?
The Arduino Nano Every is an evolution of the traditional Arduino Nano board but features a lot more powerful processor, the ATMega4809. This will allow you to make larger programs than with the Arduino Uno (it has 50% more program memory), and with a lot more variables (the RAM is 200% bigger). An Improved Arduino Nano If you used Arduino Nano in your projects in the past, the Nano Every is a pin-equivalent substitute. The main differences are a better processor and a micro-USB connector. The board comes in two options: with or without headers, allowing you to embed the Nano Every inside any kind of invention, including wearables. The board comes with tessellated connectors and no components on the B-side. These features allow you to solder the board directly onto your own design, minimizing the height of your whole prototype. Oh, and did we mention the improved price? Thanks to a revised manufacturing process, the Arduino Nano Every costs a fraction of the original Nano … what are you waiting for? Upgrade now! Microcontroller ATMega4809 Operating Voltage 5 V Input Voltage 7 V - 21 V Analog Input Pins 8 Analog Output Pins Only through PWM External Interrupts all digital pins DC Current per I/O Pin 20 mA DC Current for 3.3 V Pin 50 mA Flash Memory 48 KB SRAM 6 KB EEPROM 256 Byte Clock Speed 20 MHz LED_Builtin 13 UART 1 SPI 1 I2C 1 PWM Pins 5 USB Uses the ATSAMD11D14A Length 45 mm Width 18 mm Weight 5 g
Raspberry Pi 5 provides two four-lane MIPI connectors, each of which can support either a camera or a display. These connectors use the same 22-way, 0.5 mm-pitch “mini” FPC format as the Compute Module Development Kit, and require adapter cables to connect to the 15-way, 1 mm-pitch “standard” format connectors on current Raspbery Pi camera and display products.These mini-to-standard adapter cables for cameras and displays (note that a camera cable should not be used with a display, and vice versa) are available in 200 mm, 300 mm and 500 mm lengths.
The RP2040 utilizes dual ARM Cortex-M0+ processors (up to 133MHz): 264kB of embedded SRAM in six banks 6 dedicated IO for SPI Flash (supporting XIP) 30 multifunction GPIO: Dedicated hardware for commonly used peripherals Programmable IO for extended peripheral support Four 12-bit ADC channels with internal temperature sensor (up to 0.5 MSa/s) USB 1.1 Host/Device functionality The RP2040 is supported with C/C++ and MicroPython cross-platform development environments, including easy access to runtime debugging. It has a UF2 boot and floating-point routines baked into the chip. The built-in USB can act as both device and host. It has two symmetric cores and high internal bandwidth, making it useful for signal processing and video. While the chip has a large internal RAM, the board includes an additional external flash chip. Features Dual Cortex M0+ processors, up to 133 MHz 264 kB of embedded SRAM in 6 banks 6 dedicated IO for QSPI flash, supporting execute in place (XIP) 30 programmable IO for extended peripheral support SWD interface Timer with 4 alarms Real-time counter (RTC) USB 1.1 Host/Device functionality Supported programming languages MicroPython C/C++
This bundle contains the popular Elektor Sand Clock for Raspberry Pi Pico and the new Elektor Laser Head Upgrade, offering even more options for displaying the time. Not only can you "engrave" the current time in sand, you can now alternatively write it on a glow-in-the-dark foil or create green drawings.
Contents of the bundle
Elektor Sand Clock for Raspberry Pi Pico (normal price: €50)
NEW: Elektor Laser Head Upgrade for Sand Clock (normal price: €35)
Elektor Sand Clock for Raspberry Pi (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: approx. 1.5 to 2 hours
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
Elektor Laser Head Upgrade for Sand Clock
The new Elektor Laser Head transforms the Sand Clock into a clock that writes the time on glow-in-the-dark film instead of sand. In addition to displaying the time, it can also be used to create ephemeral drawings. The 5 mW laser pointer, with a wavelength of 405 nm, produces bright green drawings on the glow-in-the-dark film. For best results, use the kit in a dimly lit room. Warning: Never look directly into the laser beam!
The kit includes all the necessary components, but soldering three wires is required.
Note: This kit is also compatible with the original Arduino-based Sand Clock from 2017. For more details, see Elektor Magazine 1-2/2017 and Elektor Magazine 1-2/2018.
Architecture, Programming and Applications
The MSP430 is a popular family of microcontrollers from Texas Instruments. In this book we will work with the smallest type, which is the powerful MSP430G2553. We will look at the capabilities of this microcontroller in detail, as it is well-suited for self-made projects because it is available in a P-DIP20 package.
We will take a closer look at the microcontroller and then build, step by step, some interesting applications, including a 'Hello World' blinking LED and a nice clock application, which can calculate the day of the week based on the date.
You also will learn how to create code for the MSP microcontroller in assembler. In addition to that, we will work with the MSP-Arduino IDE, which makes it quite easy to create fast applications without special in-depth knowledge of the microcontrollers.
All the code used in the book is available for download from the Elektor website.
UNDERSTANDING THE NEURONS IN NEURAL NETWORKS (PART 1)Artificial Neurons
EMC PRE-COMPLIANCE TEST FOR YOUR DC-POWERED PROJECT (PART 1)Dual DC LISN
ELECTRONIC LOAD FOR DC AND ACUp to 400 V and 10 A (Peak)
STARTING OUT IN ELECTRONICSEasier Than Imagined! ...Taking on the Choke!
IMAGE PROCESSING WITH THE NVIDIA JETSON NANO (PART 1)The Hardware and Software
AN IN-DEPTH LOOK AT MAINS TRANSFORMERSHow Do They Behave When They Are Switched On and Off?
YES WE CAN WITH PICAN 3A CAN Bus HAT for the Raspberry Pi 4
BALCONY POWER PLANTDIY Solar Balcony = Speedy Payback!
IMAGING AND VIDEO-STREAMING WITH A RASPBERRY PI 4The Raspberry Pi High-Quality Camera in Practice
USING DISPLAYS IN RASPBERRY PI PROJECTSSample Chapter: Organic Light Emitting Diode Displays (OLED)
HANDS ON THE PARALLAX PROPELLER 2 (PART 4)Sending Strings
ELEKTOR @ 60A Look Back at Previous Septembers
HOMELAB TOURSIn the Friesian Countryside, Where the Tubes Bloom ...
HYBRIDSPeculiar Parts, the series
A COMPASS ROSE USING THE GY-271Or Why We Move in Figures of Eight to Calibrate a Sensor
FINDING YOUR FOOTPRINTCalculate the Carbon Footprint of Your Electronics
ESP32-CONNECTED THERMOSTATKeep Your Wine at the Right Temperature!
MAGNETIC LEVITATION THE DIGITAL WAYESP32 Pico Replaces the Analog Comparator
ULTIMATE ARDUINO UNO HARDWARE MANUALSample Chapter: Main Microcontroller Bootloader
MICROPYTHON FOR THE ESP32 AND FRIENDS (PART 2)Control Matrix Displays Easily
MADMACHINE SWIFTIO BOARDModern Language Meets Modern Hardware
FROM LIFE’S EXPERIENCEOn-Again, Off-Again Relationship
HEXADOKUThe Original Elektorized Sudoku
The USB-CAN-FD is an industrial-grade high-performance USB to CAN-FD adapter, CAN/CAN-FD bus communication interface card, and CAN/CAN-FD protocol data analyzer. Onboard dual independent CAN-FD interfaces with electrical isolation and multiple protection circuits. Supports Windows system, comes with drivers, CAN-FD Tools related software, secondary development examples, and tutorials. It can be connected to the PC or industrial control host via a USB port to realize transceiver control, data analysis, collection and monitoring of CAN/CAN-FD bus network. It is compact in size and easy to use, which can be used for learning and debugging of CAN/CAN-FD bus, as well as for secondary development and integration into various industrial, power communication, and intelligent control applications that require CAN/CAN-FD bus communication. Specifications Product type Industrial grade: USB to CAN-FD interface converter, CAN/CAN-FD bus communication interface card, CAN/CAN-FD protocol data analyzer USB Operating voltage 5 V (directly powered by USB port without external power supply) Connector USB-B CAN/CAN FD interface CAN/CAN FD channel Dual-channel: CAN1 and CAN2 (independent and full-isolated, isolated voltage: 3000 V DC) Connector CAN bus screw terminal (OPEN6 5.08 mm pitch) Terminal resistor Each CAN/CAN-FD channel has two built-in 120Ω terminal resistors, which can be enabled by switch Baud Rate 100Kbps~5Mbps (configurable via software) Protocol Support CAN2.0A, CAN2.0B, and ISO 11898-1 CAN-FD protocol V.1.0 Transfer speed The receiving and sending speed of each CAN/CAN-FD channel can reach 20000 frames/s and 5000 frames/s Transmit buffer 1500 frames receiving buffer and 64 frames sending buffer per channel (automatically retransmit when the transmission fails) Indicators PWR Power indicator SYS System status indicator, normally off; keeps on when there is a bus error CAN1 CAN1 channel indicator (blinking when sending and receiving data) CAN2 CAN2 channel indicator (blinking when sending and receiving data) System support Windows Windows XP/7/8/10/11 (32/64 bits); Does Not support the Linux system now, and the related drivers are under development. Operating temperature −40 to +85°C Case material Aluminum alloy case + 3D flame-retardant insulating sheets on both sides (This design can provide better protection against metal tip discharge, also improves product safety, and extends service life) Dimensions 104 x 70 x 25 mm Included Waveshare USB-CAN-FD USB-A to USB-B cable 4-pin cable Screwdriver Downloads Wiki
As demand for solar panel installation has risen sharply, especially for installations larger than balcony power plants, the order books of solar companies are full. If you ask for a quote today, you may have to wait a while, if your request isn't simply postponed indefinitely. Another consequence of the solar boom is that some companies are charging very high prices for installations.
Yet there is an obvious and radical solution to the problem of excessive prices: Do it yourself, as the English say. The price of materials is currently affordable, and it's the ideal time for those who do the work themselves. They couldn't save more. Add to this the satisfaction of doing something useful, both economically and ecologically, and the pleasure of building yourself.
In this special issue, you'll find a wide selection of Elektor assemblies, from solar panel controllers to solar water heaters and solar panel orientation systems. The issue also contains practical information on solar panel installation and the technology behind them. Finally, there are a number of articles on the subject of balcony power plants, from how to install them to how to connect them to the Internet...
Contents
BASICS
Dimensioning Photovoltaic Panel ArraysAn introduction to photovoltaic energy and the commonest techniques,followed by simplified calculation models and setup guidelines.
Light Sensor TechnologyMeasuring daylight using LEDs.
Solar Power Made SimpleSolar charging with and without a controller.
Cable Cross-sections and Energy Losses in Solar SystemsKey considerations on the minimum values to respect for electricalcurrent in solar panel cabling.
Solar ModulesEverything you always wanted to know about solar panels...
Ideal Diode ControllerDiode Circuits with Low Power Dissipation.
TIPS
Tracking for Solar Modules
zBot Solar/Battery Power Supply
Solar Cell Array Charger with Regulator
Solar Cell Voltage Regulator
Solar-Powered Night Light
Alternative Solar Battery Charger
PROJECTS
Energy LoggerMeasuring and Recording Power Consumption.
Tiny Solar SupplySunlight In, 3.3 V Out.
A Do-It-Yourself DTURead Data from Small Inverters by μC.
Solar ChargerPortable energy for people on the move.
Solar Thermal Energy RegulatorMaximum power point tracking explored.
2-amp Maximum Power Tracking ChargerSolar Power To The Max.
Computer-driven HeliostatFollow the sun or the stars.
Garden LightingUsing solar cells.
Solar Panel Voltage Converter for IoT DevicesYes we CAN exploit indoor lighting.
Travel ChargerFree power in the mountains.
Solar Cell Battery Charger/MonitorWith protection against deep discharge.
Solar-powered Battery ChargerPIC12C671 avoids overcharging and deep charging.
Converters for Photovoltaic PanelsContributed by TME (Transfer MultisortElektronik).
Solar Charging RegulatorFor panels up to 53 watts.
Solar-Powered ChargerFor lead-acid batteries.
CAN Bus + Arduino for Solar PV Cell MonitoringDetect and locate serviceable panels in large arrays.
Balcony Power Plant 2.0The latest: solar panels, installation and inverters
High-quality ABS construction Removable side panels and lid for easy access to GPIO, camera and display connectors Light pipes for power and activity LEDs Extraordinarily handsome Colour: white/red
High-quality ABS construction Removable side panels and lid for easy access to GPIO, camera and display connectors Light pipes for power and activity LEDs Extraordinarily handsome Colour: black/grey
The powerful soldering station with LCD panel has been designed for a wide temperature range (from 150-450°C) and is ideal for general purpose soldering as well as specialized lead-free soldering applications. The soldering iron is controlled automatically by the microprocessor.
With its high-quality sensor the heat exchange system guarantees precise temperature control at the soldering tip. This digital temperature controlled soldering station includes a holder and cleaning sponge.
Specificaties
Operating voltage
220-240 V, 50 Hz
Power consumption
80 W
Soldering iron power
48 W
Operating voltage soldering iron
24 V
Temperature (adjustable)
150-450°C
Dimensions
195 x 87 x 165 mm
This versatile digital microscope covers a wide magnification range (18-720x, 1560-2040x, 2760-4080x) with 3 lenses for hobby, industrial and biologic purposes. Lens A (18-720x) can be used to observe whole coins or parts, circuit boards, plants, stones, etc. With lens B (1560-2040x) and C (2760-4080x) you can observe biological slides.
Specifications
Magnification
Lens A
18-720
Focus range
12-320 mm
Lens B
1560-2040
Focus range
7-8 mm
Lens C
2760-4080
Focus range
3-4 mm
Screen size
10 inch (25.7 cm)
Video resolution (max.)
UHD 2880x2160 (24fps)
Video format
MP4
Photo format
JPG
Photo resolution
5600x2400 (with interpolation)
Frame rate
Max. 120fps
HDMI output
Yes (only HDMI monitor displays)
PC output
Yes
Power supply
USB 5 V DC (not included)
Stand material
Pro Plastic
Stand size
20 x 19 x 30 cm
Included
1x Andonstar AD249S-P Digital Microscope
1x Pro plastic stand
1x Lens A (fixed)
1x Lens (B & C)
1x USB cable
1x HDMI cable
1x Remote control
1x Dimmer cable
3x Backdrop board
1x Slides kit
1x 32 GB microSD card
1x Observation box
1x Tweezers
1x Screw driver
1x User manual
A Practical Guide to AI, Python, and Hardware Projects
Welcome to your BeagleY-AI journey! This compact, powerful, and affordable single-board computer is perfect for developers and hobbyists. With its dedicated 4 TOPS AI co-processor and a 1.4 GHz Quad-core Cortex-A53 CPU, the BeagleY-AI is equipped to handle both AI applications and real-time I/O tasks. Powered by the Texas Instruments AM67A processor, it offers DSPs, a 3D graphics unit, and video accelerators.
Inside this handbook, you‘ll find over 50 hands-on projects that cover a wide range of topics—from basic circuits with LEDs and sensors to an AI-driven project. Each project is written in Python 3 and includes detailed explanations and full program listings to guide you. Whether you‘re a beginner or more advanced, you can follow these projects as they are or modify them to fit your own creative ideas.
Here’s a glimpse of some exciting projects included in this handbook:
Morse Code Exerciser with LED or BuzzerType a message and watch it come to life as an LED or buzzer translates your text into Morse code.
Ultrasonic Distance MeasurementUse an ultrasonic sensor to measure distances and display the result in real time.
Environmental Data Display & VisualizationCollect temperature, pressure, and humidity readings from the BME280 sensor, and display or plot them on a graphical interface.
SPI – Voltmeter with ADCLearn how to measure voltage using an external ADC and display the results on your BeagleY-AI.
GPS Coordinates DisplayTrack your location with a GPS module and view geographic coordinates on your screen.
BeagleY-AI and Raspberry Pi 4 CommunicationDiscover how to make your BeagleY-AI and Raspberry Pi communicate over a serial link and exchange data.
AI-Driven Object Detection with TensorFlow LiteSet up and run an object detection model using TensorFlow Lite on the BeagleY-AI platform, with complete hardware and software details provided.
The Controller Area Network (CAN) was originally developed to be used as a vehicle data bus system in passenger cars. Today, CAN controllers are available from over 20 manufacturers, and CAN is finding applications in other fields, such as medical, aerospace, process control, automation, and so on.
This book is written for students, for practising engineers, for hobbyists, and for everyone else who may be interested to learn more about the CAN bus and its applications.
The aim of this book is to teach you the basic principles of CAN networks and in addition the development of microcontroller based projects using the CAN bus. In summary, this book enables the reader to:
Learn the theory of the CAN bus used in automotive industry
Learn the principles, operation, and programming of microcontrollers
Design complete microcontroller based projects using the C language
Develop complete real CAN bus projects using microcontrollers
Learn the principles of OBD systems used to debug vehicle electronics
You will learn how to design microcontroller based CAN bus nodes, build a CAN bus, develop high-level programs, and then exchange data in real-time over the bus. You will also learn how to build microcontroller hardware and interface it to LEDs, LCDs, and A/D converters.
The book assumes that the reader has some knowledge on basic electronics. Knowledge of the C programming language will be useful in later chapters of the book, and familiarity with at least one member of the PIC series of microcontrollers will be an advantage, especially if the reader intends to develop microcontroller based projects using the CAN bus.