WCH CH32V307 RISC-V development board features 8 UART ports controlled over Ethernet The CH32V307 is an interconnected microcontroller, based on 32-bit RISC-V core, with hardware stack area and fast interrupt entry. Compared with standard RISC-V, the interrupt response speed is greatly improved. With single-precision float point instruction sets added and stack area extended, the CH32V307 has higher performance, the number of U(S)ART is extended to 8, and the number of motor timer is extended to 4. The CH32V307 provides USB2.0 high-speed interface (480 Mbps) and has built-in PHY transceiver. Ethernet MAC is upgraded to GbE and integrates 10M PHY module. Features RISC-V4F processor, max 144 MHz system clock frequency Single-cycle multiplication and hardware division, hardware float point unit (FPU) 64KB SRAM, 256 KB Flash Supply voltage: 2.5 V/3.3 V, GPIO unit is supplied independently Multiple low-power modes: sleep/stop/standby Power-on/power-down reset (POR/PDR), programmable voltage detector (PVD) 2 general DMA controllers, 18 channels in total 4 amplifiers Single true random number generator (TRNG) 2x 12-bit DAC 2-unit 16-channel 12-bit ADC, 16-channel TouchKey 10 timers USB2.0 full-speed OTG interface USB2.0 high-speed host/device interface (built-in 480 Mbps PHY) 3 USARTs, 5 UARTs 2 CAN interfaces (2.0B active) SDIO interface, FSMC interface, DVP 2x I²C, 3x SPI, 2x I²S 80 I/O ports, can be mapped to 16 external interrupts CRC calculation unit, 96-bit unique chip ID Serial 2-wire debug interface Packages: LQFP64M, LQFP100 Downloads Datasheet GitHub
The Peak Atlas ESR70 gold is an enhanced version of the previous Peak Atlas ESR70 Plus. It does everything that the ESR70 Plus did but better.
It now measures capacitance up to 10x faster, and over a wider range, thanks to new test algorithms. The capacitance measurement is also much less influenced by parallel resistances or leakage current thanks to our new Triple-Slope measurement system.
Using the supplied gold plated probes (removable), the Atlas ESR70 gold can measure ESR down to a resolution of 0.01 ohms, up to 40 ohms. It can even measure ESR for capacitors that are in-circuit. Probes are removable, allowing 2 mm compatible probes to be fitted. Audible alerts are produced for various ESR levels allowing you to perform many tests in succession without having to look at the display. The ESR70 automatically takes capacitive reactance into account, so even low value capacitors (down to 0.3 uF) can have the ESR measured accurately.
Features
Uses a single AAA Alkaline cell (included)
Alphanumeric LCD with backlight
Automatic analysis-start when you apply the probes
Automatic capacitor discharge using controlled discharge function
ESR (and low DC resistance) measurement (even in-circuit)
Capacitive reactance automatically taken into account to ensure accurate ESR
Capacitance measurement (if testing out-of-circuit)
Audible alerts for various ESR levels
Extended ESR measurement range up to 40 Ohms
Optional probe alternatives easily fitted
New gold Features
Improved LCD with better backlight
10x faster capacitance measurement for large capacitors
Enhanced user options system
New triple-slope measurement system to vastly reduce the influence of parallel resistance and/or leakage current on capacitance measurements
Much wider capacitance measurement range now 0.3 uF to 90,000 uF (was 1uF to 22,000uF)
Specifications
Analyzer type
ESR and Capacitance
Component types
Capacitors (>0.3 uF)
ESR range
0.00 Ohms to 40.0 Ohms
ESR resolution
From 0.01 Ohms
In-circuit use
ESR only
Capacitance range
0.3 uF to 90000 uF
Battery type
1.5 V Alkaline AAA Cell (supplied). Life typically 1500 ops
Display type
Alphanumeric LCD (with backlight)
Included
Peak Atlas ESR70 gold
Extra-long and extra-flexible test cables (450 mm of Silicone covered cable)
2 mm gold plated plugs and sockets with removeable gold plated crocodile clips
Comprehensive illustrated user guide
AAA Alkaline cell
Downloads
Datasheet (EN)
User Guide (EN)
User Guide (FR)
User Guide (IT)
The SEQURE HT140 is a highly versatile 2-in-1 soldering tool that combines the functionality of hot tweezers and a soldering iron. It is specifically engineered for precise SMD soldering and desoldering tasks.
With independent control for single-sided heating, it operates as a traditional soldering iron when fitted with a standard tip. When configured for dual-sided heating, it transforms into hot tweezers – perfect for the efficient and accurate removal of SMD components.
Features
Working Temperature: 50-500°C (122-932°F)
Supports multiple power inputs: PD 3.1/3.0/2.0, QC 3.0/2.0, (5-28 V DC), LiPo batteries, and power adapters.
The HT140 combines hot tweezers and a soldering iron, with independent single- or dual-sided heating. Use it as a soldering iron with a tip, or as hot tweezers for easy SMD desoldering.
Voltage and current can be adjusted based on the power source.
Features dual temperature control, presets, quick temperature increase, and fine-tuning.
128 x 32 OLED screen with adjustable brightness, and orientation. Switchable °C/°F.
High-precision heating element with ±1% accuracy. Melts solder in just 2 seconds.
Smart standby, sleep, and wake-up functions extend tip lifespan and boost efficiency.
Supports temperature calibration and compensation for precise work.
Includes a 1.5 m heat-resistant PD 150 W silicone cable and a sturdy all-metal HT Station.
Swappable tips and adjustable angles for various SMD soldering tasks.
Specifications
Working Voltage
5-28 V DC
Maximum Power
140 W
Working Temperature
50-500°C (122-932°F)
Tin Melting Time
2s
Interface Type
USB-C, DC5525
Power Supply
PD 3.1/3.0/2.0, QC 3.0/2.0, 28 V DC max
Display
128 x 32 OLED
Firmware Upgrade
Yes
Menu Languages
English, Russian, Chinese
Dimensions
160 x 27 x 17.5 mm
Weight
50 g
Included
1x SEQURE HT140 Host
2x HT140-IS Tapered Curved Desoldering Tips
1x HT Station
1x Accessory Package
1x Storage Bag
1x 65 W PD Power Supply (EU, UK & US)
1x 24 W PD Silicone Wire (1.5 m)
1x GND Wire Accessory Kit (1.8 m)
The Raspberry Pi Monitor is a 15.6-inch Full HD computer display. User-friendly, versatile, compact and affordable, it is the perfect desktop display companion for both Raspberry Pi computers and other devices.
With built-in audio via two front-facing speakers, and VESA and screw mounting options as well as an integrated angle-adjustable stand, the Raspberry Pi Monitor is ideal for desktop use or for integration into projects and systems. It can be powered directly from a Raspberry Pi, or by a separate power supply.
Features
15.6-inch full HD 1080p IPS display
Integrated angle-adjustable stand
Built-in audio via two front-facing speakers
Audio out via 3.5 mm jack
Full-size HDMI input
VESA and screw mounting options
Volume and brightness control buttons
USB-C power cable
Specifications
Display
Screen size: 15.6 inches, 16:9 ratio
Panel type: IPS LCD with anti-glare coating
Display resolution: 1920 x 1080
Color depth: 16.2M
Brightness (typical): 250 nits
Color gamut: 45%
Viewing angle: 80°
Power
1.5 A/5 V
Can be powered directly from a Raspberry Pi USB port (max 60% brightness, 50% volume) or by a separate power supply (max 100% brightness, 100% volume)
Connectivity
Standard HDMI port (1.4 compliant)
3.5 mm stereo headphone jack
USB-C (power in)
Audio
2x 1.2 W integrated speakers
Support for 44.1 kHz, 48 kHz, and 96 kHz sample rates
Downloads
Datasheet
Hands-on in more than 50 projects
STM32 Nucleo family of processors are manufactured by STMicroelectronics. These are low-cost ARM microcontroller development boards. This book is about developing projects using the popular STM32CubeIDE software with the Nucleo-L476RG development board. In the early Chapters of the book the architecture of the Nucleo family is briefly described.
The book covers many projects using most features of the Nucleo-L476RG development board where the full software listings for the STM32CubeIDE are given for each project together with extensive descriptions. The projects range from simple flashing LEDs to more complex projects using modules, devices, and libraries such as GPIO, ADC, DAC, I²C, SPI, LCD, DMA, analogue inputs, power management, X-CUBE-MEMS1 library, DEBUGGING, and others. In addition, several projects are given using the popular Nucleo Expansion Boards. These Expansion Boards plug on top of the Nucleo development boards and provide sensors, relays, accelerometers, gyroscopes, Wi-Fi, and many others. Using an expansion board together with the X-CUBE-MEMS1 library simplifies the task of project development considerably.
All the projects in the book have been tested and are working. The following sub-headings are given for each project: Project Title, Description, Aim, Block Diagram, Circuit Diagram, and Program Listing for the STM32CubeIDE.
In this book you will learn about
STM32 microcontroller architecture;
the Nucleo-L476RG development board in projects using the STM32CubeIDE integrated software development tool;
external and internal interrupts and DMA;
DEBUG, a program developed using the STM32CubeIDE;
the MCU in Sleep, Stop, and in Standby modes;
Nucleo Expansion Boards with the Nucleo development boards.
What you need
a PC with Internet connection and a USB port;
STM32CubeIDE software (available at STMicroelectronics website free of charge)
the project source files, available from the book’s webpage hosted by Elektor;
Nucleo-L476RG development board;
simple electronic devices such as LEDs, temperature sensor, I²C and SPI chips, and a few more;
Nucleo Expansion Boards (optional).
Create Models for 3D Printing, CNC Milling, Process Communication and DocumentationEngineers dread designing 3D models using traditional modeling software. OpenSCAD takes a refreshing and completely different approach. Create your models by arranging geometric solids in a JavaScript-like language, and use them with your 3D printer, CNC mill, or process communication.OpenSCAD differs from other design systems in that it uses programmatical modeling. Your model is made up of primitives that are invoked using a C-, Java- or Python-like language. This approach to model design is close to the “mechanical work” done in the real world and appeals to engineers and others who are not a member of the traditional creative class.OpenSCAD also provides a wide variety of comfort functions that break the 1:1 relationship between code and geometry. This book demonstrates the various features of the programming language using practical examples such as a replacement knob for a LeCroy oscilloscope, a wardrobe hanger, a container for soap dispensers, and various other real-life examples.Written by an engineer with over 15 years of experience, this book is intended for Linux and Windows users alike. If you have programming experience in any language, this book will have you producing practical three-dimensional objects in short order!
Elevate your audio experience with the Douk Audio P6 mini Tube Preamplifier, a perfect blend of modern connectivity, HiFi sound quality, and vintage charm. Whether you're an audiophile or just starting your journey into high-quality audio, this compact yet powerful preamp offers everything you need.
Features
Versatile Connectivity: Supports Bluetooth 5.0, USB (U-Disk), and RCA connections, making it compatible with a wide range of devices such as phones, TVs, tablets, projectors, and computers. Plays lossless audio formats (APE, FLAC, WAV, WMA) and MP3 directly from USB.
HiFi Warm Sound: The 6A2 tube delivers rich, warm, and sweet tones, enhancing your listening experience. Upgradeable to various tubes (6*1N, JAN5725W, 6AK5, EF95) for personalized sound profiles.
Customizable Sound: Independent treble and bass knobs allow precise tone adjustments, while the main volume control ensures seamless output.
User-Friendly Design: Easily switch inputs with the selector and LED indicators – no need to reconnect cables repeatedly.
Premium Build and Aesthetic: CNC-machined black aluminum alloy chassis for durability, complemented by a vintage orange tube glow for a stylish and nostalgic appeal.
Specifications
Audio input
Bluetooth 5.0 / USB (U-Disk) / Stereo RCA
Audio output
Stereo RCA
Maximum capacity U-disk supported
64 GB
Highest sampling rate U-disk supported
24 Bit/192 K (FAT32)
Formats U-disk supported
MP3/APE/FLAC/WAV/WMA
Treble/bass range
±6 dB
Frequency response
20 Hz-20 kHz (±1 dB)
Distortion
≤0.03%
RCA input sensitivity
0 dBFS/1 V
SNR
≥100 dB
Working voltage
DC 12 V
Dimensions
97 x 118 x 33 mm
Weight
337 g
Included
1x Douk Audio P6 mini Tube Preamp
2x 6A2 Tube
1x Bluetooth Antenna
1x Power Adapter (12 V DC)
1x Manual
NEW: Now incl. volume 2024 + Elektor GPT
5 Elektor Decades (’70s, ’80s, ’90s, ’00s, and ’10s) on a USB Stick
This USB stick (32 GB, USB 3.0) is loaded with all the Elektor magazine English editions (as PDFs) from 1974 to 2024. Elektor engineers, authors, and editors aim to inspire you to master electronics and computer technology by presenting professionally designed circuits that are easy to build.
We also cover the latest developments in electronics and information technology. With the Elektor Archive on a USB stick, you can browse our previous English editions at your convenience and learn about MCU-based projects, robotics, electronics testing, embedded programming, analog techniques, and much more.
All the Elektor magazine editions are stored as PDFs on a 32-GB USB stick (USB 3.0). The 10,000+ articles have been classified by date of publication (month/year), and a comprehensive index enables you to search the entire USB stick. Subject areas include:
Audio & video
Computers & microcontrollers
Radio, hobby & modelling
Home & garden
Power supplies & batteries
Test & measurement
Software
And everything else that doesn’t fit in one of these categories.
NEW
Elektor GPT is an AI-powered tool that helps users navigate through the decades-long Elektor archive. Using advanced search algorithms and natural language processing, Elektor GPT quickly finds articles, projects, and other resources from the archive.
Specifications
USB
USB 3.0
Storage
32 GB
Interfaces
1x USB-A1x USB-C
System requirements
PC with Adobe Reader 7.0 or higher
Web browser
With the JOY-iT PS1440-C you get a programmable laboratory power supply, which provides you with DC voltages between 0.01 to 60 V and DC currents between 0.01 to 24 A at the voltage output.
With the help of the intuitive control panel up to 9 different DC voltages can be programmed, stored and recalled, even individual settings of various protection and limiting functions (e.g. overvoltage protection) are programmable. The corresponding values can be set very conveniently via the keypad and/or the rotary control and are clearly displayed thanks to the high-resolution 2.4" color display.
Features
Complete device ready for immediate use
Battery charging function
Values can be entered conveniently via keypad
Over current & over voltage protection adjustable
Integrated RTC, NTC temperature sensor
Included detailed documentation in English, German & French
Specifications
Input voltage
230 V
Output voltage
0-60 V
Output current
0-24 A
Output power
0-1440 W
Input voltage accuracy
±1% +5 digits
Output voltage accuracy
±0.3% +3 digits
Output current accuracy
±0.5% +5 digits
Battery voltage
±0.5% +3 digits
Input voltage measurement resolution
0.01 V
Output voltage measurement resolution
0.01 V
Current measurement resolution
0.01 V
Battery voltage measurement resolution
0.01 V
Response time in constant voltage mode
2 ms @ 0.1-5 A
Load regulation in constant voltage mode
±0.1% +2 digits
Load regulation in constant current mode
±0.1% +3 digits
Measuring range electric charge
0-9999.99 Ah
Measuring range energy
0-9999.99 Wh
Statistical errors in electric charge & energy
±2%
Output ripple
100 mV VPP @ 12 V150 mV VPP @ 24 V
Sensor temperature detection range
−10~100°C (0-200°F)
Sensor temperature detection accuracy
±3°C (±6°F)
Working mode
Step-down operation
Screen brightness setting
Level 0-5, 6 levels in total
Permissible working temperature
−10~40°C (0-104°F)
Dimensions
170 x 93 x 340 mm
Included
JT-PS1440-C power supply
Power cord
Manual
Downloads
Manual
Over 180 Projects with Raspberry Pi, Pico W, Arduino, and ESP32
This bundle contains the Universal Maker Sensor Kit, which consists of many sensors, actuators, displays, and motors. It’s perfect for environmental monitoring, smart home projects, robotics, and game controllers.
The new Elektor book describes the design of many projects using the kit together with the popular Raspberry Pi, Raspberry Pi Pico W, Arduino Uno, and the ESP32 family of development boards. You can choose any of these development boards for your projects and either use the provided programs as they are, or modify these programs to suit your applications.
This bundle contains:
NEW Book: Universal Maker Sensor Kit (normal price: €45)
Universal Maker Sensor Kit (for Raspberry Pi, Pico W, Arduino, ESP32) (normal price: €70)
Raspberry Pi Pico W (normal price: €8)
Book: Universal Maker Sensor Kit
Learn to use more than 35 Sensors and Actuators with C++, Python, and MicroPython
This book contains over 180 projects for all four major development boards (Arduino, Raspberry Pi, Pico W, and ESP32). Depending on the development board, projects are available in the C, Python, or MicroPython programming languages.
The project titles, brief descriptions, wiring diagrams, and full program listings together with their detailed descriptions are given in the guide.
Universal Maker Sensor Kit (for Raspberry Pi, Pico W, Arduino, ESP32)
Discover endless creativity with the Universal Maker Sensor Kit, designed for use with Raspberry Pi, Pico W, Arduino, and ESP32. This versatile kit offers compatibility across popular development platforms, including Arduino Uno R4 Minima/WiFi, Uno R3, Mega 2560, Raspberry Pi 5, 4, 3B+, 3B, Zero, Pico W, and ESP32.
Featuring over 35 sensors, actuators, and displays, it's perfect for projects ranging from environmental monitoring and smart home automation to robotics and interactive gaming. Step-by-step tutorials in C/C++, Python, and MicroPython guide beginners and experienced makers alike through 169 exciting projects.
Features
Wide Compatibility: Fully supports Arduino (Uno R3, Uno R4 Minima/WiFi, Mega 2560), Raspberry Pi (5, 4, 3B+, 3B, Zero, Pico W), and ESP32, enabling extensive flexibility across numerous development platforms. Includes instructions for building 169 projects.
Comprehensive Components: Features more than 35 sensors, actuators, and display modules suitable for diverse projects such as environmental monitoring, smart home automation, robotics, and interactive game controllers.
Detailed Tutorials: Provides clear, step-by-step tutorials covering Arduino, Raspberry Pi, Pico W, ESP32, and each included component. Tutorials are available in C/C++, Python, and MicroPython, catering effectively to both beginners and experienced makers.
Suitable for All Skill Levels: Offers structured projects designed to guide users seamlessly from beginner to advanced proficiency in electronics and programming, enhancing creativity and technical expertise.
Included
Breadboard
Button Module
Capacitive Soil Moisture Module
Flame Sensor Module
Gas/Smoke Sensor Module (MQ2)
Gyroscope & Accelerometer Module (MPU6050)
Hall Sensor Module
Infrared Speed Sensor Module
IR Obstacle Avoidance Sensor Module
Joystick Module
PCF8591 ADC DAC Converter Module
Photoresistor Module
PIR Motion Module (HC-SR501)
Potentiometer Module
Pulse Oximeter and Heart Rate Sensor Module (MAX30102)
Raindrop Detection Module
Real Time Clock Module (DS1302)
Rotary Encoder Module
Temperature Sensor Module (DS18B20)
Temperature and Humidity Sensor Module (DHT11)
Temperature, Humidity & Pressure Sensor (BMP280)
Time of Flight Micro-LIDAR Distance Sensor (VL53L0X)
Touch Sensor Module
Ultrasonic Sensor Module (HC-SR04)
Vibration Sensor Module (SW-420)
Water Level Sensor Module
I²C LCD 1602
OLED Display Module (SSD1306)
RGB LED Module
Traffic Light Module
5 V Relay Module
Centrifugal Pump
L9110 Motor Driver Module
Passive Buzzer Module
Servo Motor (SG90)
TT Motor
ESP8266 Module
JDY-31 Bluetooth Module
Power Supply Module
Documentation
Online Tutorial
With this 65 W USB-C PD power supply (with GaN technology) and the included USB-C cable you can start using the FNIRSI HS-01 soldering iron straight away. Of course, you can also use this charger to fast charge your tablets and smartphones via USB-C and USB-A. Included 65 W USB-C PD GaN Power Supply (EU) USB-C cable (1.2 m)
The project book, written by well-known Elektor author Dogan Ibrahim, holds many software- and hardware-based projects especially developed for the Arduino Uno Experimenting Kit. The kit comes with the Arduino Uno R4 Minima, several LEDs, sensors, actuators, and other components. The purpose of the kit is to make a flying start with hardware and software aspects of projects designed around the Arduino Uno microcontroller system.
The projects given in this guide are fully evaluated and working and fully employ all the supplied components. A block diagram, a circuit diagram, an extensive program listing, and a complete program description is given for every project in the guide.
Included
1x Arduino Uno R4 Minima
1x RFID reader module
1x DS1302 clock module
1x 5 V stepper motor
1x '2003' stepper motor drive board
5x Green LED
5x Yellow LED
5x Red LED
2x Rocker switch
1x Flame sensor
1x LM35 sensor module
1x Infrared receiver
3x Light-dependent resistors (LDRs)
1x IR remote controller
1x Breadboard
4x Pushbutton (with four caps)
1x Buzzer
1x Piezo sounder
1x Adjustable resistor (potentiometer)
1x 74HC595 shift register
1x 7-segment display
1x 4-digit 7-segment display
1x 8x8 Dot-matrix display
1x 1602 / I²C LCD module
1x DHT11 Temperature and humidity module
1x Relay module
1x Sound module
Set of Dupont cables
Set of Breadboard cables
1x Water sensor
1x PS2 Joystick
5x 1 k-ohm resistor
5x 10 k-ohm resistor
5x 220-ohm resistor
1x 4x4 keypad module
1x 9g Servo (25 cm)
1x RFID card
1x RGB module
1x 9 V battery DC jack
Project book (326 pages)
Over 80 Projects in the Book
Hardware Projects with LEDs
Blinking LED – using the on-board LED
Blinking LED – using an external LED
LED flashing SOS
Alternately blinking LEDs
Chaser-LEDs
Chasing LEDs 2
Binary counting LEDs
Random flashing LEDs – Christmas lights
Button controlled LED
Controlling the LED flashing rate – external interrupts
Reaction timer
LED color wand
RGB fixed colors
Traffic lights
Traffic lights with pedestrian crossings
Using the 74HC595 shift register – binary up counter
Using the 74HC595 shift register – random flashing 8 LEDs
Using the 74HC595 shift register – chasing LEDs
Using the 74HC595 shift register – turn ON a specified LED
Using the 74HC595 shift register – turn ON specified LEDs
7-Segment LED Displays
7-Segment 1-digit LED counter
7-Segment 4-digit multiplexed LED display
7-Segment 4-digit multiplexed LED display counter – timer interrupts
7-Segment 4-digit multiplexed LED display counter – blanking leading zeroes
7-Segment 4-digit multiplexed LED display – reaction timer
Timer interrupt blinking onboard LED
Liquid Crystal Displays (LCDs)
Display text on the LCD
Scrolling text on the LCD
Display custom characters on the LCD
LCD based conveyor belt goods counter
LCD based accurate clock using timer interrupts
LCD dice
Sensors
Analog temperature sensor
Voltmeter
On/Off temperature controller
Darkness reminder – using a light-dependent resistor (LDR)
Tilt detection
Displaying water level
Water level controller
Water flooding detector with buzzer
Sound detection sensor – control the relay by clapping hands
Flame sensor – fire detection with relay output
Temperature and humidity display
Generating musical tones – melody maker
The RFID Reader
Finding the Tag ID
RFID door lock access with relay
The 4x4 Keypad
Display the pressed key code on the Serial Monitor
Integer calculator with LCD
Keypad door security lock with relay
The Real-Time Clock (RTC) Module
RTC with Serial Monitor
RTC with LCD
Temperature and humidity display with time stamping
Setting and displaying the current time
Periodic interrupt every 2 seconds
The Joystick
Reading analog values from the joystick
8x8 LED Matrix
Displaying shapes
Motors: Servo and Stepper
Test-rotate the servo
Servo sweep
Joystick-controlled servo
Rotate the motor clockwise and then anticlockwise
The Digital to Analog Converter (DAC)
Generating a square wave with 2 V amplitude
Generate a sine wave
Sine wave sweep frequency generator
Generate sine wave whose frequency changes with potentiometer
Generate a square wave with frequency of 1 kHz and amplitude of 1 V
Using the EEPROM, the Human Interface Device, and PWM
Keyboard control to launch Windows programs
LED dimming using PWM
The Arduino Uno R4 WiFi
Using LED matrix 1 – creating a large + shape
Creating images by setting bits
Using LED matrix 2 – creating a large + shape
Animation – displaying a word
Controlling the Arduino Uno R4 WiFi on-board LED from a smartphone using UDP
Serial Communications
Receiving ambient temperature from an Arduino Uno R3
Using an Arduino Uno Simulator
A simple project simulation – flashing LED
Displaying text on LCD
LCD seconds counter
The CAN bus
Arduino Uno R4 WiFi to Arduino Uno R4 Minima CAN bus communication
Sending the temperature readings over the CAN bus
Infrared Receiver and Remote Controller
Decoding the IR remote control codes
Remote relay activation/deactivation
Infrared remote stepper motor control
Sound Secrets and Technology
What would today’s rock and pop music be without electric lead and bass guitars? These instruments have been setting the tone for more than sixty years. Their underlying sound is determined largely by their electrical components. But, how do they actually work? Almost no one is able to explain this to the true musician with no technical background. This book answers many questions simply, in an easily-understandable manner.
For the interested musician (and others), this book unveils, in a simple and well-grounded way, what have, until now, been regarded as manufacturer secrets. The examination explores deep within the guitar, including pickups and electrical environment, so that guitar electronics are no longer considered highly secret. With a few deft interventions, many instruments can be rendered more versatile and made to sound a lot better – in the most cost-effective manner.
The author is an experienced electronics professional and active musician. He has thoroughly tested everything described here, in practice.
Specifications
A4 (210 x 297 mm) squared-grid spiral-bound notebook with watermark breadboards
158 pages, card covers.
The book also includes
Microcontroller programming cheat sheet
Common circuits and calculations
Pinouts
Resistor color codes
ASCII table
This multimedia case for all Raspberry Pi 4 models is characterized by high functionality, modern design and a sumptuous equipment: Integrated IR receiver, controllable with almost all IR remote controls Controllable LED lighting Switching on/off, controlling additional functions of the Raspberry Pi Active, quiet cooling Toolless, magnetic assembly All connections of the Raspberry Pi are on the backside GPIO port is accessible via separate lid Perfect as a multimedia platform in the living room, desktop device or for the use in digital signage. Specifications Material Acryl Color Black Compatible to Raspberry Pi 4 Power supply 5 VDC (USB-C) Microcontroller STM32F030F4P Infrared receiver TSOP4838 LEDs 4x WS2812Mini Led out connections 1x USB-C, 1x Aux, 2x microHDMIFrom Raspberry Pi: 2x USB-A 3.0, 2x USB-A 2.0, 1x RJ45 Weight 280 g Dimensions 113 x 100 x 38 mm Scope of delivery Multimedia case, adapter board, control board, Aux adapter cable Downloads Datasheet (177.9 KB) Manual (3.5 MB) Expert Guide (6.5 MB) Firmware v1.0.9-beta (11.2 KB) Addons for LibreElec 9 (2.6 MB) Code Examples Addon - Multimedia Case Configuration Addon - LED Configuration Addon - IR Control Configuration Prepared LibreElec Image Prepared LibreElec Image 10.BETA GitHub
An 8-in-1 test & measurement instrument for the electronics workbench
A well-equipped electronics lab is crammed with power supplies, measuring devices, test equipment and signal generators. Wouldn‘t it be better to have one compact device for almost all tasks? Based on the Arduino, a PC interface is to be developed that’s as versatile as possible for measurement and control. It simply hangs on a USB cable and – depending on the software – forms the measuring head of a digital voltmeter or PC oscilloscope, a signal generator, an adjustable voltage source, a frequency counter, an ohmmeter, a capacitance meter, a characteristic curve recorder, and much more.
The circuits and methods collected here are not only relevant for exactly these tasks in the "MSR" electronics lab, but many details can also be used within completely different contexts.
Errata/Updates
In the programs printed, all instances of “be()” should read: sei().
This bundle is all about designing projects based on the 555 timer IC. The book features over 45 fully tested and documented projects. Together with the kit, which contains more than 130 through-hole components, you can build all the projects described on a breadboard. The setup also makes it easy to modify and experiment with the projects.
Over 45 Builds for the Legendary 555 Chip (and the 556, 558)
Some of the projects in the book are:
Alternately Flashing Two LEDs
Changing LED Flashing Rate
Touch Sensor On/Off Switch
Switch On/Off Delay
Light-Dependent Sound
Dark/Light Switch
Tone Burst Generator
Long Duration Timer
Chasing LEDs
LED Roulette Game
Traffic Lights
Continuity Tester
Electronic Lock
Switch Contact Debouncing
Toy Electronic Organ
Multiple Sensor Alarm System
Metronome
Voltage Multipliers
Electronic Dice
7-Segment Display Counter
Motor Control
7-Segment Display Dice
Electronic Siren
Various Other Projects
Kit Contents
Resistors
1x 15 kΩ
1x 68 kΩ
2x 47 kΩ
1x 82 kΩ
2x 820 Ω
1x 8.2 kΩ
3x 10 kΩ
1x 1.8 kΩ
1x 6.8 kΩ
14x 2.2 kΩ
10x 680 Ω
1x 27 kΩ
1x 5.6 kΩ
1x 560 kΩ
1x 4.7 kΩ
1x 3.3 kΩ
3x 33 kΩ
1x 36 kΩ
2x 100 kΩ
5x 1 kΩ
1x 3.9 kΩ
2x 56 kΩ
2x 12 kΩ
1x 10 kΩ potentiometer
1x 1 MΩ potentiometer
2x 50 kΩ potentiometer
3x 20 kΩ potentiometer
1x 10 kΩ potentiometer
1x 10 kΩ potentiometer
1x 50 kΩ potentiometer
1x 100 kΩ potentiometer
1x 50 kΩ potentiometer
Capacitors
1x 0.33 μF
1x 1 μF
1x 10 nF
1x 22 nF
1x 47 nF
1x 100 nF
1x 10 μF electrolytic
1x 33 μF electrolytic
2x 100 μF electrolytic
LEDs
10x 5 mm red LED
10x 3 mm red LED
3x 3 mm yellow LED
3x 3 mm green LED
1x Common-cathode 7-segment LED
Semiconductors
3x 555 timer
1x CD4017 counter
1x CD4026 counter
1x CD4011 NAND gate
4x 1N4148 diode
1x IRFZ46N MOSFET
1x Thermistor
1x Light dependent resistor (LDR)
Miscellaneous
1x Passive buzzer
1x Active buzzer
1x SG90 servo
1x 8 Ω mini loudspeaker
1x 9 V DC brushed motor
1x 5 V relay
1x 9 V battery clip
7x Pushbutton switches
1x Breadboard
1x Breadboard jumper wires
The LCR-P1 transistor tester is a high-precision, multi-functional electronic tester specifically designed for electronics engineers, technicians and enthusiasts to determine and analyze the performance and characteristics of semiconductor components such as transistors, diodes, triodes and field-effect transistors (FETs).
Equipped with a 1.44-inch color screen, it enables multi-parameter measurement of various components, automatically identifies the type and pin arrangement of the tested component, simplifies the operation process and improves test efficiency.
Specifications
Transistor range
10 < β < 600
Capacitance Range
25 pF-100 mF
Inductance range
10 μH-1000 μH
Resistance Range
0.01 Ω-50 MΩ
Diode
Forward voltage drop <4.5 V
Voltage Regulator Diode
0.01-4.5 V0.01-32 V
Field-Effect Transistor
JFET / IGBT / MOSFET
Bidirectional Thyristor
Turn-on voltage <5 VGate trigger current <6 mA
IR Decoding
NEC protocol IR code
Display
1.44" Color Screen
Power Supply
300 mAh lithium battery
Battery
0.1-4.5 V
Charging
USB-C (5 V/1 A)
Operating Temperature
0~40°C
Dimensions
71 x 87 x 28 mm
Included
1x FNIRSI LCR-P1 Transistor Tester
1x Replaceable test board
3x Test hooks
1x USB cable
1x Manual
Downloads
Manual
Firmware V1.0.9
A Fast-Lane Ride From Concept to Project
The core of the book explains the use of the Raspberry Pi Zero 2 W running the Python programming language, always in simple terms and backed by many tested and working example projects. On part of the reader, familiarity with the Python programming language and some experience with one of the Raspberry Pi computers will prove helpful. Although previous electronics experience is not required, some knowledge of basic electronics is beneficial, especially when venturing out to modify the projects for your own applications.
Over 30 tested and working hardware-based projects are given in the book, covering the use of Wi-Fi, communication with smartphones and with a Raspberry Pi Pico W computer. Additionally, there are Bluetooth projects including elementary communication with smartphones and with the popular Arduino Uno. Both Wi-Fi and Bluetooth are key features of the Raspberry Pi Zero 2 W.
Some of the topics covered in the book are:
Raspberry Pi OS installation on an SD card
Python program creation and execution on the Raspberry Pi Zero 2 W
Software-only examples of Python running on the Raspberry Pi Zero 2 W
Hardware-based projects including LCD and Sense HAT interfacing
UDP and TCP Wi-Fi based projects for smartphone communication
UDP-based project for Raspberry Pi Pico W communication
Flask-based webserver project
Cloud storage of captured temperature, humidity, and pressure data
TFT projects
Node-RED projects
Interfacing to Alexa
MQTT projects
Bluetooth-based projects for smartphone and Arduino Uno communications
Programming and Projects for the Minima and WiFi
Based on the low-cost 8-bit ATmega328P processor, the Arduino Uno R3 board is likely to score as the most popular Arduino family member so far, and this workhorse has been with us for many years. Recently, the new Arduino Uno R4 was released, based on a 48-MHz, 32-bit Cortex-M4 processor with a huge amount of SRAM and flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The new board also supports the CAN Bus with an interface.
Two versions of the board are available: Uno R4 Minima, and Uno R4 WiFi. This book is about using these new boards to develop many different and interesting projects with just a handful of parts and external modules, which are available as a kit from Elektor. All projects described in the book have been fully tested on the Uno R4 Minima or the Uno R4 WiFi board, as appropriate.
The project topics include the reading, control, and driving of many components and modules in the kit as well as on the relevant Uno R4 board, including
LEDs
7-segment displays (using timer interrupts)
LCDs
Sensors
RFID Reader
4×4 Keypad
Real-time clock (RTC)
Joystick
8×8 LED matrix
Motors
DAC (Digital-to-analog converter)
LED matrix
WiFi connectivity
Serial UART
CAN bus
Infrared controller and receiver
Simulators
… all in creative and educational ways with the project operation and associated software explained in great detail.
Aoyue Int 866 is a microprocessor-controlled 3-in-1 rework station designed to meet all your repair and soldering needs. It combines a hot air gun, a quartz IR preheater with external sensor and a soldering iron in one comprehensive package.
This complete repairing system features digital control and display of hot air temperature, soldering iron temperature, air flow, and pre-heater temperature. With touch-type panel controls, you can achieve precision and ease of use in all your tasks. Both the hot air gun and the soldering iron temperatures can be digitally calibrated, ensuring accurate temperature settings for optimal performance.
Features
550 W Hot Air Gun
550 W Pre-heater
60 W Soldering Iron
Digital Temperature Display
Integrated Hot Air Gun Platform
Switchable Temperature Scale °C/°F
User configurable 1 to 30 minute idle-to-auto-stand-by mode (with 30 minutes as default) for additional device protection and power saving
Built-in auto-cooling process that protects the system and its components from excessive heat, prolonging usage life
Compatibility with air nozzles of various types
Wide selection of solder iron tips (T Series soldering tips) for different soldering requirements
Specifications
Hot Air Gun
Power consumption
550 W
Temperature range
100-480°C
Heating element
Metal heating core
Pump type
Centrifugal fan
Soldering Iron
Power consumption
60 W
Output voltage
24 V
Temperature range
200-480°C
Heating element
Ceramic heater
Tip to ground resistance
Below 2 Ω
Tip to ground potential
Below 2 mV
Pre-heater
Power consumption
550 W
Temperature range
100-450°C
Heating element
Quartz crystal
Heating area
130 x 130 mm
Main Unit
Power input
220 V
Dimensions
192 x 100 x 325 mm
Weight
6.55 kg
Included
1x Int 866 Main Unit with Pre-heater and Hot Air Gun
1x Spare Hot Air Gun Heating Element
1x External Sensor
1x Hot Air Gun Mast with Wire Holder
1x 3-Segment Fully Articulating Arm Holder
1x Holder Stopper with Securing Screw
6x PCB Holder
7x PCB Holder Securing Screw
1x AT-9 Air Nozzle Set (T1194, T1195, T1198, BGA-S)
1x B016 Soldering Iron with Tip
1x Spare Soldering Iron Heating Element
10x Soldering Iron Tips (including T-0.5C, T-0.8C, T-0.8D, T-1C, T-1.2D, T-1.6D, T-2.4D, T-B, T-LB, T-I)
1x 2660 Soldering Iron Stand
1x Soldering Iron Stand Assembly guide
1x Vacuum Pen with 3 vacuum caps
1x Tool Box
1x G001 IC Popper
1x Power Cord
1x Instruction Manual
Inspired by NASA's “Curiosity” and “Perseverance” Mars Rovers, this innovative M.A.R.S. Rover is an autonomous vehicle designed to drive around on rough terrain here on Earth. It uses the same rocker arm, bogey and differential arm mechanism. M.A.R.S. is an acronym for 'Mobile Autonomous Robotic System'. Features 6 Motors: 80 rpm 6 V, N20 micro gear motors 4 Servos: MG90S metal gear analog micro servos 4 FireLEDs Ultrasonic distance sensor on steerable mast Total number of special PCBs: 30 Number of different PCB designs: 11 Length: 200 mm Width: 185 mm Height with Mast: 170 mm Weight excluding Raspberry Pi Zero and batteries: 460 g There is a Python library module for the Raspberry Pi Zero that makes it easy to control the unit. Required Raspberry Pi Zero 4 rechargeable AA batteries Downloads Assembly of 4tronix M.A.R.S. Rover Kit Programming M.A.R.S. Rover on Raspberry Pi Zero Coding using Microsoft Makecode on GitHub
