The Elektor Milliohmmeter Adapter uses the precision of a multimeter to measure very low resistance values. It is an adapter that converts a resistance into a voltage that can be measured with a standard multimeter.
The Elektor Milliohmmeter Adapter can measure resistances below 1 mΩ using a 4-wire (Kelvin) method. It is useful for locating short circuits on printed circuit boards (PCB).
The adapter features three measurement ranges – 1 mΩ, 10 mΩ, and 100 mΩ – selectable via a slide switch. It also includes onboard calibration resistors. The Elektor Milliohmmeter Adapter is powered by three 1.5 V AA batteries (not included).
Specifications
Measurement ranges
1 mΩ, 10 mΩ, 100 mΩ, 0.1%
Power supply
3x 1.5 V AA batteries (not included)
Dimensions
103 x 66 x 18 mm (compatible with Hammond 1593N-type enclosure, not included)
Special feature
On-board calibration resistors
Downloads
Documentation
The Andonstar AD407 Pro microscope is suitable for various applications such as soldering SMDs or repair work. The microscope has a large adjustable 7" LCD display and comes with a remote. Compared to AD407, AD407 Pro offers an extra-high stand, which makes soldering of components even easier.
Specifications
Screen size
7 inch (17.8 cm)
Image sensor
4 MP
Video output
UHD 2880x2160 (24fps)FHD 1920x1080 (60fps/30fps)HD 1280x720 (120fps)
Video format
MP4
Magnification
Up to 270 times (27 inch HDMI monitor)
Photo resolution
Max. 12 MP (4032x3024)
Photo format
JPG
Focus range
Min. 5 cm
Frame Rate
Max. 120fps
Video interface
HDMI
Storage
microSD card (up to 64 GB)
Power source
5 V DC
Light source
2 LEDs with the stand
Stand size
20 x 18 x 32 cm
Included
1x Andonstar AD407 Pro Digital Microscope
1x Metal stand with 2 LEDs
1x UV filter (already assembled in the lens)
1x IR remote
1x Switch cable
1x Power adapter
1x Wrench
2x Metal clips
1x HDMI cable
1x Manual
Downloads
Manual
Model Comparison
AD407
AD407 Pro
AD409
AD409 Pro-ES
Screen size
7 inch (17.8 cm)
7 inch (17.8 cm)
10.1 inch (25.7 cm)
10.1 inch (25.7 cm)
Image sensor
4 MP
4 MP
4 MP
4 MP
Video output
2160p
2160p
2160p
2160p
Interfaces
HDMI
HDMI
USB, HDMI, WiFi
USB, HDMI, WiFi
Video format
MP4
MP4
MP4
MP4
Magnification
Up to 270x
Up to 270x
Up to 300x
Up to 300x
Photo resolution
Max. 4032x3024
Max. 4032x3024
Max. 4032x3024
Max. 4032x3024
Photo format
JPG
JPG
JPG
JPG
Focus distance
Min. 5 cm
Min. 5 cm
Min. 5 cm
Min. 5 cm
Frame rate
Max. 120f/s
Max. 120f/s
Max. 120f/s
Max. 120f/s
Storage
microSD card
microSD card
microSD card
microSD card
PC support
No
No
Windows
Windows
Mobile connection
No
No
WiFi + Measurement
WiFi + Measurement
Power source
5 V DC
5 V DC
5 V DC
5 V DC
Light source
2 LEDs with the stand
2 LEDs with the stand
2 LEDs with the stand
2 LEDs with the stand
Endoscope
No
No
No
Yes
Stand size
20 x 12 x 19 cm
20 x 18 x 32 cm
18 x 20 x 30 cm
18 x 20 x 32 cm
Weight
1.6 kg
2.1 kg
2.2 kg
2.5 kg
The Raspberry Pi Pico 2 WH (with headers) is a microcontroller board based on the RP2350 featuring 2.4 GHz 802.11n wireless LAN and Bluetooth 5.2. It gives you even more flexibility in your IoT or smart product designs and expanding the possibilities for your projects.
The RP2350 provides a comprehensive security architecture built around Arm TrustZone for Cortex-M. It incorporates signed boot, 8 KB of antifuse OTP for key storage, SHA-256 acceleration, a hardware TRNG, and fast glitch detectors.
The unique dual-core, dual-architecture capability of the RP2350 allows users to choose between a pair of industry-standard Arm Cortex-M33 cores and a pair of open-hardware Hazard3 RISC-V cores. Programmable in C/C++ and Python, and supported by detailed documentation, the Raspberry Pi Pico 2 WH is the ideal microcontroller board for both enthusiasts and professional developers.
Specifications
CPU
Dual Arm Cortex-M33 or dual RISC-V Hazard3 processors @ 150 MHz
Wireless
On-board Infineon CYW43439 single-band 2.4 GHz 802.11n wireless Lan and Bluetooth 5.2
Memory
520 KB on-chip SRAM; 4 MB on-board QSPI flash
Interfaces
26 multi-purpose GPIO pins, including 4 that can be used for AD
Peripherals
2x UART
2x SPI controllers
2x I²C controllers
24x PWM channels
1x USB 1.1 controller and PHY, with host and device support
12x PIO state machines
Input power
1.8-5.5 V DC
Dimensions
21 x 51 mm
Downloads
Datasheet
Pinout
Schematic
SD card quality is crucial for a good Raspberry Pi experience. Raspberry Pi's A2 microSD cards support higher bus speeds and command queuing, improving random read performance and narrowing the gap with NVMe SSDs. These cards are rigorously tested for optimal performance with Raspberry Pi models.
Features
Capacity: 32 GB
Support for DDR50 and SDR104 bus speeds and command queueing (CQ) extension
Speed Class: C10, U3, V30, A2
Random 4 KB read performance: 3,200 IOPS (Raspberry Pi 4, DDR50) 5,000 IOPS (Raspberry Pi 5, SDR104)
Random 4 K write performance: 1,200 IOPS (Raspberry Pi 4, DDR50) 2,000 IOPS (Raspberry Pi 5, SDR104)
Shock-proof, X-ray–proof, and magnet-proof
microSDHC/microSDXC formats
Downloads
Datasheets
The Raspberry Pi AI Camera is a compact camera module based on the Sony IMX500 Intelligent Vision Sensor. The IMX500 combines a 12 MP CMOS image sensor with on-board inferencing acceleration for various common neural network models, allowing users to develop sophisticated vision-based AI applications without requiring a separate accelerator.
The AI Camera enhances captured still images or video with tensor metadata, while keeping the Raspberry Pi's processor free for other tasks. Support for tensor metadata in the libcamera and Picamera2 libraries, as well as the rpicam-apps application suite, ensures ease of use for beginners while providing unparalleled power and flexibility for advanced users.
The Raspberry Pi AI Camera is compatible with all Raspberry Pi models.
Features
12 MP Sony IMX500 Intelligent Vision Sensor
Sensor modes: 4056x3040 (@ 10fps), 2028x1520 (@ 30fps)
1.55 x 1.55 µm cell size
78-degree field of view with manually adjustable focus
Integrated RP2040 for neural network and firmware management
Specifications
Sensor
Sony IMX500
Resolution
12.3 MP (4056 x 3040 pixels)
Sensor size
7.857 mm (type 1/2.3)
Pixel size
1.55 x 1.55 μm
IR cut filter
Integrated
Autofocus
Manual adjustable focus
Focus range
20 cm – ∞
Focal length
4.74 mm
Horizontal FOV
66 ±3°
Vertical FOV
52.3 ±3°
Focal ratio (F-stop)
F1.79
Output
Image (Bayer RAW10), ISP output (YUV/RGB), ROI, metadata
Input tensor maximum size
640 x 640 (H x V)
Framerate
• 2x2 binned: 2028x1520 10-bit 30fps• Full resolution: 4056x3040 10-bit 10fps
Ribbon cable length
20 cm
Cable connector
15 x 1 mm FPC or 22 x 0.5 mm FPC
Dimensions
25 x 24 x 11.9 mm
Downloads
Datasheet
Documentation
Soldering station for precision soldering with actively heated soldering tip
The AE970D soldering iron station is a 80 W high power tool to heat up to solder fastly. Its wide temperature range of 150-550°C (302-1022°F) could meet all your soldering needs. Thanks to its high performance plug-and-play integrated active tip, AE970D can reach melting point within 9 seconds. Patented close-loop automatic constant temperature control technology can ensure its soldering with high stability, excellent performance and precise accuracy.
Features
80 W high power to enable fast heating up
Wider temperature range of 150-550°C (302-1022°F) to meet all your soldering needs
High performance plug-and-play integrated active tip, can reach melting point within 9 seconds
Patented close-loop automatic constant temperature control technology to ensure high stability, excellent performance and precise accuracy
Specifications
Power
80 W
Input voltage
110 VAC / 230 VAC
Output voltage
25 VAC
Temperature range
150-550°C (302-1022°F)
Heating element
T80 series integrated active heater
Temperature stability
±1°C/±1.8°F (when temperature >200°C/400°F)
Tip to ground resistance
<2 Ω
Tip to ground voltage
<2 mV
Power cord length
1 m
Handle cable length
1.2 m
Dimensions
148 x 120 x 85 mm
Weight (main unit)
1.33 kg
Included
Main unit
Soldering iron incl. soldering tip T80-D12
Iron stand
Brass wool
Manual
The Peak Atlas LCR45 does everything that the popular LCR40 does, but it has some significant enhancements. The LCR45 features a new high capacity micro and high resolution ADCs.
LCR45 incorporates advanced maths, based on Complex Impedance analysis. This allows for enhanced component value measurement as well as a comprehensive and detailed impedance display.
Features
Supplied with gold plated removable hook probes
Fluid measurements with hold function
Automatic or manual component type
Automatic or manual test frequency, DC, 1 kHz, 15 kHz or 200 kHz
Enhanced measurement resolution: 0.2 µH, 0.2 pF and 0.2 Ohms
Easy menu system for user settings
Enhanced compensation for component parasitics and losses (such as core losses etc)
Automatic or manual power-off
Specifications
Analyser type
LCR and component impedance
Component types
Auto/Manual for L,C & R
Measurement types
Inductance, Capacitance and Resistance
Other measurements
Complex impedance/admittance
More measurements
Magnitude and Phase of impedance
Inductance range
0uH to 2H
Capacitance range
0 pF to 10000 uF
Resistance range
0R to 2MR
Test frequency
Auto and manual: DC, 1 kHz, 15 kHz, 200 kHz
Display type
Alphanumeric LCD (not backlit)
Measurement scheme
Continuous (with optional hold)
Battery
GP23 (12 V/55 mAH type), ~700 ops
Included
LCR45 Passive Component Impedance Meter
2 mm plugs and sockets and removeable hook probes
Comprehensive illustrated user guide
2 Batteries, one installed and one spare. GP23 Alkaline battery. (12 V/55 mAH)
Downloads
Datasheet (EN)
User Guide (EN)
User Guide (FR)
User Guide (IT)
The BB830T is a solderless (plug-in) transparent breadboard with 830 connection tie-points (i.e. 830 wire insertion holes). It has 4 power rails. Solderless breadboards are great for building and testing new circuits because parts can be easily inserted and removed. They are completely re-usable. The BB830T has a 630 tie-point IC-circuit area plus four 50 tie-point power rails.
Specifications
830 tie points total: 630 tie-point IC-circuit area plus two 100 tie-point distribution strips providing 4 power rails.
ABS plastic/transparent body with black printed legend. Color legend on distribution strips.
Contacts are Phosphor Bronze with Plated Nickel Finish, rated for 50,000 insertions.
Rated at 36 Volts, 2 Amps.
Insertion Wire Size is 21 to 26 AWG, 0.016 to 0.028 inches diameter (0.4 to 0.7mm diameter).
Peelable adhesive tape backing provided for attaching to a surface. Metal back plate provided.
Resonances From Aether Days
A Pictorial and Technical Analysis from WWII to the Internet Age
From the birth of radio to the late 1980s, much of real life unfolded through shortwave communication. World War II demonstrated—beyond a shadow of a doubt—that effective communications equipment was a vital prerequisite for military success. In the postwar years, shortwave became the backbone on which many of the world's most critical services depended every day.
All the radio equipment—through whose cathodes, grids, plates, and transistors so much of human history has flowed—is an exceptional subject of study and enjoyment for those of us who are passionate about vintage electronics. In this book, which begins in the aftermath of World War II, you’ll find a rich collection of information: descriptions, tips, technical notes, photos, and schematics that will be valuable for anyone interested in restoring—or simply learning about—these extraordinary witnesses to one of the most remarkable eras in technological history.
My hope is that these pages will help preserve this vast treasure of knowledge, innovation, and history—a heritage that far transcends the purely technical.
The Raspberry Pi 45 W USB-C Power Supply is an ideal choice for powering USB-C-compatible Raspberry Pi products. It is particularly suitable for Raspberry Pi 5 users looking to operate high-power peripherals such as hard drives and SSDs.
Delivering up to 5.1 V/5 A, it supports USB PD (Power Delivery) negotiation, allowing the Raspberry Pi 5 to select the optimal power profile automatically. This capability enables the Raspberry Pi 5 to increase the USB current limit from the default 600 mA to 1.6 A, providing additional power for peripherals connected via its four USB-A ports.
Thanks to its comprehensive range of built-in power profiles, the Raspberry Pi 45 W USB-C Power Supply is also an excellent option for powering third-party PD-compatible devices like smartphones, tablets, and laptops. Available profiles include 9.0 V/5.0 A, 12.0 V/3.75 A, 15.0 V/3.0 A, and 20.0 V/2.25 A, all delivering a maximum of 45 W.
Specifications
Input
100-240 V AC
Output
5.1 V/5.0 A, 9.0 V/5.0 A, 12.0 V/3.75 A, 15.0 V/3.0 A, 20.0 V/2.25 A (Power Delivery)
Connector
USB-C
Cable
1.5 m, 17AWG (white)
Region
EU
Downloads
Datasheet
This 'All in One' Raspberry Pi 4 Desktop Starterkit contains all official parts and allows an easy and quick start!
Raspberry Pi 4 Desktop Kit contains:
Raspberry Pi US Keyboard & Mouse
2x micro HDMI to Standard HDMI cable (A/M) 1 m
Raspberry Pi 15.3 W USB-C Power Supply (EU version)
Raspberry Pi 4 Case
Official Raspberry Pi Beginner's Guide (English language)
16 GB NOOBS with Raspbian microSD card
Raspberry Pi 4 B is NOT included.
This versatile plotter robot arm DIY kit for Arduino is equipped with MG90S metal gear servo motors to ensure precise and stable drawing movements.
Features
Fully compatible with Arduino IDE, includes complete source code for easy development and customization.
Equipped with robust MG90S metal gear servo motors for accuracy and durability.
Includes a Bluetooth module enabling wireless operation via a dedicated app.
Specially designed robotic arm tip securely holds pens or markers with a diameter of 8-10 mm, ideal for sketches and detailed drawings.
Included
Arduino-compatible Nano motherboard
Nano expansion board
Bluetooth module
MG90S all-metal gear servo motors
Aluminum structural frame
Thickened stable base plate
Screw and fastening accessories
Connecting wires
USB data cable
All you need to know about good acoustics and sound systems in performance and worship spaces!
Everyone knows that the ability to hear music in balance and to understand speech is essential in any space used for performance or worship. Unfortunately, in the early 21st century, we find that buildings with good acoustics are the exception rather than the rule. Much of the fault leading to this result can be traced to the widespread perception that acoustics is a black art. In fact, scientific acoustics as developed in the last century is a well-defined engineering practice that can lead to predictable excellent results.
A basic, non-engineering understanding of acoustics will help building owners, theater managers, ministers and teachers of music, performers, and other professionals to achieve their goals of excellent acoustics in venues with which they work. Performers having a basic understanding of acoustics will be able to make the most of the acoustics of the venue in which they perform.
This book helps those responsible for providing good acoustics in performance and worship spaces to understand the variables and choices entailed in proper acoustic design for performance and worship. Practicing acoustical consultants will find the book a useful reference as well. The level of presentation is comfortable and straightforward without being simplistic. If correct acoustical principles are incorporated into the design, renovation, and maintenance of performance and worship venues, good acoustics will be the result.
The OWON XDM2041 is a low-cost, high-precision benchtop multimeter. The meter has a True RMS function to measure the AC voltage and current and it has a reading speed of up to 65 values per second. Also, the XDM2041 is equipped with functions such as measuring 2-wire and 4-wire resistance.
The XDM2041 is able to store data internally in the memory of the meter and display it on the 3.7" high-resolution LCD display. Up to 1000 points can be stored and the time interval can be varied from 15ms to 9999s. By means of the RS232 port on the back of the device, the meter can be programmed and controlled via SCPI.
Specifications
Measurement Range
Resolution
Accuracy ±(% of reading + LSB)
DC Voltage
50.000mV
0.001mV
0.1%+10
500.00mV
0.01mV
0.025%+5
5.0000V
0.0001V
0.025%+5
50.000V
0.001V
0.03%+5
500.00V
0.01V
0.1%+5
1000.0V
0.1V
0.1%+5
AC Voltage
500mv-750v
20Hz~45Hz
1%+30
45Hz~65Hz
0.5%+30
65Hz~1KHz
0.7%+30
DC Current
500uA
0.01uA
0.15%+20
5000uA
0.1uA
0.15%+10
50mA
0.001mA
0.15%+20
500mA
0.01mA
0.15%+10
5A
0.0001A
0.5%+10
10A
0.001A
0.5%+10
AC Current
500uA-500mA
20 Hz-1 kHz
0.5%+20
5A-10A
1.5%+20
Resistance
500Ω
0.01Ω
0.1%+10
5KΩ
0.0001KΩ
0.1%+5
50KΩ
0.001KΩ
0.1%+5
500KΩ
0.01KΩ
0.1%+5
5MΩ
0.0001MΩ
0.25%+5
50MΩ
0.001MΩ
0.1%+10
Four-wire resistance
500Ω
0.01Ω
0.1%+10
5KΩ
0.0001KΩ
0.1%+5
50KΩ
0.001KΩ
0.1%+5
Measurement Range
Resolution
Accuracy ±(% of reading + % of range)
Frequency
10.000Hz-60MHz
/
±(0.2%+8)
Capacitance
50nF-500uF
/
2.5%+5
5mF-50mF
5%+8
Diode
3.0000 V
0.0001V
/
Continuity
1000 Ω
0.1Ω
/
Temperature
K type,PT100
Display
55,000
Data-logging Function
Logging Duration
15ms-9999s
Logging Length
1,000 points
Included
1x OWON XDM2041 Multimeter
2x Multimeter leads
2x Alligator clips
1x Fuse
1x Manual
Downloads
User manual
Programming manual
PC software
A Retro Roll with a Neon Soul
LED-based dice are common, but their light is cold. Not so for this electronic neon dice, which displays its value with the warm glow of neon lamps. It is perfect for playing games on cold, dark winter evenings. The pips of the dice are neon lamps and the random number generator has six neon lamps to show that it is working.
Even though the dice has an on-board 100-V power supply, it is completely safe. As with all Elektor Classic products, the dice too has its circuit diagram printed on the front while an explanation of how the circuit works can be found on the rear side.
The Neon Lamp Dice comes as a kit of easy-to-solder through-hole parts. The power supply is a 9-V battery (not included).
Features
Warm Vintage Glow
Elektor Heritage Circuit Symbols
Tried & Tested by Elektor Labs
Educational & Geeky Project
Through-Hole Parts Only
Included
Printed Circuit Board
All Components
Wooden Stand
Required
9 V battery
Component List
Resistors (THT, 150 V, 0.25 W)
R1, R2, R3, R4, R5, R6, R14 = 1 MΩ
R7, R8, R9, R10, R11, R12 = 18 kΩ
R13, R15, R16, R17, R18, R21, R23, R24, R25, R26, R28, R30, R33 = 100 kΩ
R32, R34 = 1.2 kΩ
R19, R20, R22, R27, R29 = 4.7 kΩ
R31 = 1 Ω
Capacitors
C1, C2, C3, C4, C5, C6 = 470 nF, 50 V, 5 mm pitch
C7, C9, C11, C12 = 1 µF, 16 V, 2 mm pitch
C8 = 470 pF, 50 V, 5 mm pitch
C10 = 1 µF, 250 V, 2.5 mm pitch
Inductors
L1 = 470 µH
Semiconductors
D1, D2, D3, D4, D5, D6, D7 = 1N4148
D8 = STPS1150
IC1 = NE555
IC2 = 74HC374
IC3 = MC34063
IC4 = 78L05
T1, T2, T3, T4, T5 = MPSA42
T6 = STQ2LN60K3-AP
Miscellaneous
K1 = PP3 9 V battery holder
NE1, NE2, NE3, NE4, NE5, NE6, NE7, NE8, NE9, NE10, NE11, NE12, NE13 = neon light
S2 = Miniature slide switch
S1 = Pushbutton (12 x 12 mm)
Ready to explore the world around you? By attaching the Sense HAT to your Raspberry Pi, you can quickly and easily develop a variety of creative applications, useful experiments, and exciting games.
The Sense HAT contains several helpful environmental sensors: temperature, humidity, pressure, accelerometer, magnetometer, and gyroscope. Additionally, an 8x8 LED matrix is provided with RGB LEDs, which can be used to display multi-color scrolling or fixed information, such as the sensor data. Use the small onboard joystick for games or applications that require user input. In Innovate with Sense HAT for Raspberry Pi, Dr. Dogan Ibrahim explains how to use the Sense HAT in Raspberry Pi Zero W-based projects. Using simple terms, he details how to incorporate the Sense HAT board in interesting visual and sensor-based projects. You can complete all the projects with other Raspberry Pi models without any modifications.
Exploring with Sense HAT for Raspberry Pi includes projects featuring external hardware components in addition to the Sense HAT board. You will learn to connect the Sense HAT board to the Raspberry Pi using jumper wires so that some of the GPIO ports are free to be interfaced to external components, such as to buzzers, relays, LEDs, LCDs, motors, and other sensors.
The book includes full program listings and detailed project descriptions. Complete circuit diagrams of the projects using external components are given where necessary. All the projects were developed using the latest version of the Python 3 programming language. You can easily download projects from the book’s web page. Let’s start exploring with Sense HAT.
Practical Applications and Project with Arduino, ESP32, and RP2040
Immerse yourself in the fascinating world of control engineering with Arduino and ESP32! This book offers you a practical introduction to classic and modern control methods, including PID controllers, fuzzy logic, and sliding-mode controllers.
In the first part, you will learn the basics of the popular Arduino controllers, such as the Arduino Uno and the ESP32, as well as the integration of sensors for temperature and pH measurement (NTC, PT100, PT1000, and pH sensor).
You will learn how to use these sensors in various projects and how to visualize data on a Nextion TFT display. The course continues with an introduction to actuators such as MOSFET switches, H-bridges, and solid-state relays, which are used to control motors and actuators. You will learn to analyze and model controlled systems, including PT1 and PT2 control.
The book focuses on the implementation of fuzzy and PID controllers for controlling temperature and DC motors. Both the Arduino Uno and the ESP32 are used. The sliding-mode controller is also introduced.
In the second-to-last chapter, you will explore the basics of neural networks and learn how machine learning can be used on an Arduino. In the last chapter, there is a practical example of a fuzzy controller for feeding electricity into the household grid.
This book is the perfect choice for engineers, students, and electronics engineers who want to expand their projects with innovative control techniques.
A Hands-on Guide to Crafting Your Own Power Plant
The book you are about to read provides a step-by-step guide for building a renewable energy power plant at home. Our goal was to make the book as practical as possible. The material is intended for immediate application with a small amount of theory. Yet, the theory is important as a foundation that saves time and effort by disabusing the readers of potential misconceptions. Specifically, upon having a firm understanding of photovoltaic physics, you will not be inclined to fruitlessly search for 90% efficient solar panels!
We want our readers to be the “doers”. If the book gets covered in grime and some pages become torn while you are building your power plant – this is the best compliment to us. The book covers solar and wind energy. Also, a curious power source based on manure is discussed as well, giving the doers an opportunity to further develop the manure fuel cell.
It is important to note that there are many companies offering installation of complete solar solutions. Upon installing the panels, the system is not owned by the customer. Therefore, there is no freedom for experimentation and optimization. Also, none can beat the cost of a DIY solution as well as the ultimate satisfaction.
All that is written here is a result of us building a renewable energy solution in Southern California. As the book was completed, the energy began flowing!
Learn RC and RL Filters with Hands-On Circuits and Simulation
Introduction to Electronic Filters is your comprehensive guide to understanding, designing, and applying first-order electronic filters using resistors, capacitors, and inductors. Whether you are a student, maker, or educator, this book demystifies the theory behind RC and RL filters and bridges the gap between concepts and real-world applications through simulation and experimentation.
From the basics of frequency response and phase shift to hands-on breadboard builds and Python-based simulations, this book offers a deeply practical learning experience. You will learn to analyse filters using Bode plots and phasors, and explore applications in audio tone shaping, sensor signal conditioning, noise reduction, and power supply filtering.
As you progress, you’ll build, measure, simulate, and tune filters using modern tools like CircuitLab, Python, and the Analog Discovery 3. Each chapter includes thoughtfully crafted activities that reinforce learning by doing – designing filters for specific tasks, simulating dynamic behaviour, and observing how theory translates into performance.
Inside you’ll find:
A clear introduction to the fundamentals of electronic filters
Detailed explanations of RC and RL filters, cutoff frequency, and phase
Guided activities using both simulation and hardware tools
Real-life applications in audio, sensors, power supplies, and more
A beginner-friendly primer on Python and algebra for electronics
Whether you’re working through simulations or experimenting with real components on your workbench, this book will help you develop a solid understanding of electronic filters and their role in practical circuits.
Mastering PCB design with real-world projects
This book builts on KiCad Like a Pro – Fundamentals and Projects and aims to help you practice your new KiCad skills by challenging you in a series of real-world projects. The projects are supported by a comprehensive set of recipes with detailed instructions on how to achieve a variety of simple and complex tasks. Design the PCBs for a solar power supply, an LED matrix array, an Arduino-powered datalogger, and a custom ESP32 board. Understand the finer details of the interactive router, how to manage KiCad project teams with Git, how to use an autorouter on 2 and 4-layer PCBs, and much more.
KiCad 8 is a modern, cross-platform application suite built around schematic and design editors. This stable and mature PCB tool is a perfect fit for electronic engineers and makers. With KiCad 8, you can create PCBs of any complexity and size without the constraints associated with the commercial packages.
Here are the most significant improvements and features in KiCad 8, both over and under the hood:
Modern user interface, completely redesigned from earlier versions
Improved and customizable electrical and design rule checkers
Theme editor allowing you to fully customize the look of KiCad on your screen
Ability to import projects from Eagle, CADSTART, and more
An improved and tightly integrated SPICE circuit simulator
Autorouting with the Freerouting plugin
Filters define which elements of a layout are selectable
Enhanced interactive router helps you draw single tracks and differential pairs with precision
New or enhanced tools to draw tracks, measure distances, tune track lengths, etc.
Enhanced tool for creating filled zones
A customizable coordinate system facilitates data exchange with other CAD applications
Realistic ray-tracing capable 3D viewer
Differential pair routing
Rich repositories of symbol, footprint, and 3D shape libraries
Python scripting API for programmatic customization and extensions
Improved footprint wizard for fast custom footprints
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.
The official Raspberry Pi keyboard and hub is a standard 78-key US keyboard that includes an additional three USB 2.0 type A ports to power other peripherals. The keyboard is available in different language/country options as detailed below. 78-key US keyboard Three USB 2.0 type A ports for powering other peripherals Automatic keyboard language detection USB type A to micro USB type B cable included for connection to compatible computer Ergonomic design for comfortable use Compatible with all Raspberry Pi products