Cool Projects for Test, Measurement, and Control
The Raspberry Pi has dominated the maker scene for many years. Freely accessible I/O pins have made it one of the most popular processor boards of all time. However, the classic Raspberry Pi has no analog inputs. Direct measurement of analog values is therefore not possible. Consequently, photodiodes, NTCs, Hall sensors, etc. cannot be read directly. In addition, the pins are connected directly to the exposed contacts, i.e. without a driver or protection circuit. This can quickly destroy the central controller and thus the entire Raspberry Pi.
These problems can be elegantly solved with the Pico. As a front-end, it can easily handle a wide range of measurement tasks. In addition, the Pico is much cheaper than a classic Raspberry Pi 4 or 5. If a faulty circuit leads to the destruction of the Pico, this is relatively easy to handle. This makes the combination of a classic Raspberry Pi 4 or 5 and the Pico an ideal pair.
The book introduces the broad and highly topical field of modern controller technology using the combined force of a Raspberry Pi 4 or 5 and a Raspberry Pi Pico. In addition to a detailed introduction to the operation and functionality of the controller boards themselves, the book also focuses on data acquisition and processing with digital processors. Especially the combination of both systems offers a wide range of interesting possibilities.
Some practical projects from the contents:
USB between Raspberry Pi 4 or 5 and Pico
I²C Communication and Pico as an I²C device
Voltmeter and Computer Thermometer
Pico W as a Web Server and WLAN Scanner
Frequency Meters and Generators
OLED Displays on Raspberry Pi 4 or 5 and Pico
Energy Saving Monitor
Which Astronauts are in Orbit?
Mini Monitor for Current Bitcoin Exchange Rate
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.
Programmierung in Assembler und C am Beispiel der ATtiny-Familie
Dieses Buch bietet einen eingehenden Blick auf die 8-Bit-AVR-Architektur in ATtiny- und ATmega-Mikrocontrollern, hauptsächlich aus der Sicht der Software und der Programmierung. Erforschen Sie die AVR-Architektur unter Verwendung von C und Assembler in Microchip Studio (früher Atmel Studio) mit ATtiny-Mikrocontrollern.
Lernen Sie die Details der internen Funktionsweise von AVR-Mikrocontrollern kennen, einschließlich der internen Register und des Speicherplans von ATtiny-Bausteinen.
Programmieren Sie ATtiny-Mikrocontroller mit einem Atmel-ICE-Programmiergerät/Debugger oder verwenden Sie ein preiswertes Hobby-Programmiergerät oder sogar einen Arduino Uno als Programmiergerät.
Die meisten Code-Beispiele können mit dem Microchip Studio AVR-Simulator ausgeführt werden.
Lernen Sie, Programme für ATtiny-Mikrocontroller in Assembler zu schreiben.
Erfahren Sie, wie Assemblersprache in Maschinencodebefehle umgewandelt wird.
Finden Sie heraus, wie Programme, die in der Programmiersprache C geschrieben wurden, in Assemblersprache und schließlich in Maschinencode umgewandelt werden.
Verwenden Sie den Microchip Studio Debugger in Kombination mit einem Hardware-USB-Programmierer/Debugger, um Assembler- und C-Programme zu testen oder verwenden Sie den Microchip Studio AVR-Simulator.
ATtiny-Mikrocontroller im DIP-Gehäuse werden verwendet, um eine einfache Nutzung auf Breadboards zu ermöglichen.
Erfahren Sie mehr über Timing und Taktimpuls in AVR-Mikrocontrollern mit ATtiny-Bausteinen.
Werden Sie zu einem AVR-Experten mit fortgeschrittenen Debugging- und Programmierfähigkeiten.
Getting started with the world’s best open-source PCB tool
The latest iteration of KiCad, the world’s best free-to-use Printed Circuit Board tool, is packed with features usually found only in expensive commercial CAD tools. This modern, cross-platform application suite built around schematic and design editors, with auxiliary applications is a stable and mature PCB tool. KiCad 8 is a perfect fit for electronic engineers and makers.
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 customize KiCad on your screen
Ability to import projects from Eagle, CADSTART, and more
Python scripting API
Improved integrated SPICE circuit simulator
Multi-sheet schematics
Filters define selectable elements
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.
Advanced interactive router
Built-in bill of materials generator
Realistic ray-tracing capable 3D viewer
Customizable teardrops
Plug-in manager for quick installation of themes, libraries and functionalities such as autorouters and BOM generators
This book will teach you to use KiCad through a practical approach. It will help you become productive quickly and start designing your own boards. Example projects illustrate the basic features of KiCad, even if you have no prior knowledge of PCB design.
The author describes the entire workflow from schematic entry to the intricacies of finalizing the files for PCB production and offers sound guidance on the process. Further full-fledged projects, of incremental difficulty, will be presented in a second book, together with a variety of advanced recipes.
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 OWON SDS1102 is an affordable benchtop digital oscilloscope that combines solid performance with essential measurement features. This 2-channel oscilloscope offers a 100 MHz bandwidth, a 1 GS/s sampling rate, a 7-inch LCD display, and a 10 kpts memory depth, making it a practical choice for everyday electronics testing, troubleshooting, and education.
The SDS1102 features a simplified trigger system with level and edge triggering, making it easy to capture and analyze common signals. It is designed for applications that do not require deep memory or advanced trigger functions, offering a straightforward and cost-effective solution for basic signal analysis.
Features
Bandwidth: 100 MHz
2 channels
Sample rate: 1 GS/s
Ultra-thin body
7-inch high-res LCD
SCPI and LabVIEW supported
Specifications
Bandwidth
100 MHz
Horizontal Scale (s/div)
5 ns/div – 1000 s/div
Channel
2
Vertical Sensitivity
5 mV/div – 5 V/div (at input)
DC Gain Accuracy
3%
Vertical Resolution (A/D)
8 bits (2 channels simultaneously)
Input
Input Impedance
1 MΩ, 10 pF
Input Coupling
AC, DC, GND
Max Input Voltage
±400 V, CATI, CATII
Passive probes
х1; х10
Probe Attenuation Factor
х1; х10; х100; х1000
Trigger System
Trigger Mode
Auto, Normal, Single
Trigger Type
Edge, Video
Edge Trigger Source
CH1, CH2
Video Trigger
Sampling Type
Real-time
Sample Rate
1 GS/s
Equivalent Sample Rate
No
Wavelength
10K pts
Interpolation
sin(x)/x
Measurement and Mathematical Treatment System
Automatic Measurement
Vpp, Vavg, RMS, Frequency, Period, Vmax, Vmin, Vtop, Vbase, Width, Overshoot, Pre-shootRise time, Fall time, +Width, -Width, +Duty, -Duty, Delay A→B, Delay A→B, area, cycle area
Math Functions
Addition, Subtraction, Multiplication, Division, FFT
General Characteristics
Display type
7" color LCD
Display Resolution
800 x 480
Power
100-240 V, 45-440 Hz, <15 W
Dimensions
301 x 70 x 152 mm
Weight
1.1 kg
Included
1x OWON SDS1102 Oscilloscope
2x Oscilloscope probes
1x Probe adjust
1x Mains power cord
1x USB cable
1x CD-Rom
1x Quick guide
Downloads
Quick Guide
Manual
PC Software
SCPI Commands
Diese Ausgabe steht allen GOLD- und GREEN-Mitgliedern auf der ElektorMagazine-Website zum Download bereit!
Sie sind noch kein Mitglied? Hier klicken!
Digitale Last für HochstromtestsVon der Notwendigkeit zur Innovation
GesangsentfernerInstant-Karaoke-Schaltung
Audio-Eingangswahlschalter mit VerstärkungseinstellungSchaltet von Mikrofon- auf Line-Eingänge um
Ladeschaltung für LIR2032Optimierte Ladung = längere Haltbarkeit
Touch-Sensing leicht gemachtEin DIY-Leitfaden für jeden Mikrocontroller
Universeller Infrarot-FernschalterEin neues Leben für alte Fernbedienungen
Mikrocontroller-gesteuerte MuhdoseBovine Klänge mit einem Mikrocontroller erzeugen
USB-Batterieschnittstelle
Stromversorgung von Low-Power-Geräten mit PowerbanksEine Stay-Alive-Lösung
Kleiner Klasse-A-Audioverstärker mit StromausgangLautsprecher mit Strom statt mit Spannung ansteuern
Pseudosymmetrisches ModulHohes Gleichtaktunterdrückungsverhältnis trotz asymmetrischen Audioverbindungen
Automatisches Ladegerät für Ni-MH-ZellenFüllen Sie alle Ihre Akkupacks in einem Rutsch auf!
Sicherheit durch thyristor-basierte Strombegrenzung
Fingerabdruck-Sensor-SchalterEin nützliches Gerät zum Identitätsnachweis
3-A-GleichspannungswandlerBessere Nutzung Ihrer Festspannungsquellen
Innovationen aus dem Arduino-Project-HubNeue Projekte aus der Community
Fernkontrolle eines BoilersSpannungs- und Stromdetektion für Netzspannungsleitungen
Abschwächer für AudiosignaleTeil 1. Einstellbar über Jumper
Autobatterie-Ladegerät aufgemotztTeil 1. Wiederverwenden statt wegwerfen!
Eine Platine für „The Blue One“Platine für Alps-Motorpotentiometer mit Rückmeldung
50-Hz-Referenz aus 60-Hz-NetzspannungWie man 50-Hz-Elektronik in 60-Hz-Umgebungen verwendet
Digitale IsolatorenGalvanische Trennung einfach realisieren
Kompakter 12-W-Hi-Fi-MonoverstärkerKlein, aber leistungsstark
LM386-Rampengenerator
DrehstromgeneratorMit Raspberry Pi Pico
Türöffner für musikalisch Begabte
Elektor-Klassiker: Surf-SynthesizerMeereswassersporthintergrundgeräuschgenerator (Mwsh3g)
Autobatterie-Ladegerät aufgemotztTeil 2. Ladesteuerung analog und digital
LampenstromüberwachungMit Raspberry Pi Pico
Infrarot-Telegraphie
Fnirsi SWM-10Reparatur von Batteriepacks mit tragbarem intelligentem Punktschweißgerät
Stereo-Audio-Codec für ESP32 und Co.Keine Angst vor Audio-Messtechnik
Die Kunst des LötensLötzinn-Techniken für einwandfreie Verbindungen
Abschwächer für AudiosignaleTeil 2. Umschalten per Relais
USB-C-PowerStrom aus USB-C-Netzteilen beziehen
Drei Schaltungen mit zwei und drei Zähler-ICs4017-ICs im Zusammenspiel
Aktive Bauelemente – Die Diode
Timer für extrem lange VerzögerungenEinstellen und vergessen!
Klinke rein, Klinke rausEine nützlicher Anschluss für Audioschaltungen
ESP32 mit nur einer Lithium-Zelle versorgen
Hexadoku
Designing, Wiring, and Controlling
Build Your Own Coffee Roaster is a practical guide to constructing and operating the Cobra Smart Roaster and its companion Open Roaster Controller (ORC).
The e-book walks the reader through every stage of the build, from assembling the powerhead and wiring the system to installing and configuring the controller. Along the way, you’ll learn how to use the Raspberry Pi to bring precision and flexibility to your roasting process.
Clear, step-by-step chapters cover:
Powerhead construction and required components
Low- and high-voltage wiring
Installing the ORC, network setup, and using the web interface
Roasting coffee with the Cobra in different setups, including hand-stir and bread-machine roasting
Advanced topics such as manual mode, fixed profiles, Artisan-Scope connections, and ORC system programming
A complete parts list, practical guidance throughout, and concise explanations make this e-book a useful reference for anyone interested in building, modifying, or understanding their own coffee-roasting system.
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.
STmicroelectronics’ wireless IoT & wearable sensor development kit
‘SensorTile.box’ is a portable multi-sensor circuit board housed in a plastic box and developed by STMicroelectronics. It is equipped with a high-performance 32-bit ARM Cortex-M4 processor with DSP and FPU, and various sensor modules, such as accelerometer, gyroscope, temperature sensor, humidity sensor, atmospheric pressure sensor, microphone, and so on. SensorTile.box is ready to use with wireless IoT and Bluetooth connectivity that can easily be used with an iOS or Android compatible smartphone, regardless of the level of expertise of the users. SensorTile.box is shipped with a long-life battery and all the user has to do is connect the battery to the circuit to start using the box.
The SensorTile.box can be operated in three modes: Basic mode, Expert mode, and Pro mode. Basic mode is the easiest way of using the box since it is pre-loaded with demo apps and all the user has to do is choose the required apps and display or plot the measured data on a smartphone using an app called STE BLE Sensor. In Expert mode users can develop simple apps using a graphical wizard provided with the STE BLE Sensor. Pro mode is the most complex mode allowing users to develop programs and upload them to the SensorTile.box.
This book is an introduction to the SensorTile.box and includes the following:
Brief specifications of the SensorTile.box; description of how to install the STE BLE Sensor app on an iOS or Android compatible smartphone required to communicate with the box.
Operation of the SensorTile.box in Basic mode is described in detail by going through all of the pre-loaded demo apps, explaining how to run these apps through a smartphone.
An introduction to the Expert mode with many example apps developed and explained in detail enabling users to develop their own apps in this mode. Again, the STE BLE Sensor app is used on the smartphone to communicate with the SensorTile.box and to run the developed apps.
The book then describes in detail how to upload the sensor data to the cloud. This is an important topic since it allows the sensor measurements to be accessed from anywhere with an Internet connection, at any time.
Finally, Pro mode is described in detail where more experienced people can use the SensorTile.box to develop, debug, and test their own apps using the STM32 open development environment (STM32 ODE). The Chapter explains how to upload the developed firmware to the SensorTile.box using several methods. Additionally, the installation and use of the Unicleo-GUI package is described with reference to the SensorTile.box. This PC software package enables all of the SensorTile.box sensor measurements to be displayed or plotted in real time on the PC.
The SQ series of handsfree PCBite probes from Sensepeek are insulated, come with included color-coded cable holders and have a lower point of gravity making them even more stable compared with the original SP series of probes. All the loved features of handsfree measurement, exchangeable fine pitch spring tipped test needle and the minimalistic design is maintained to make traditional sized and handheld probes obsolete.
Features
All handsfree probes from Sensepeek makes instant measurements or long triggering sessions a breeze.
No more soldering wires to connect your probe or complicated tools to setup, just positioning the probe needle on any test point or component in the signal path and release.
Saves time and frustration during development, verification and repairs. The minimalist design and the spring-loaded test needle makes it possible to simultaneously measure on fine pitch components and nearby signals.
Both length and weight of the SQ probes are perfectly balanced to be used with PCBite PCB holders and base plate which is a must for handsfree function.
The probe holder comes with a powerful magnet in the base, as for all PCBite probes and holders which makes the probe easy to place and reposition.
The SQ series of probes can be used handheld without the probe holder as they have an insulated grip but their full potential is used when measuring handsfree.
Included
2x SQ10 probes and pin tipped test needles (red/black)
2x Banana to dupont test wires (red/black)
1x Set of cable holders (red/black)
2x Extra test needles
Downloads
User guide
Learning Embedded Systems with STM32 Nucleo Boards
Programming compact electronic systems is now easier to get started with than ever before. Affordable development boards, powerful software tools, and readily available documentation make it possible to turn an idea into a working prototype in very little time. MicroPython plays an important role in this development by offering a readable, interactive way to control microcontrollers while still providing direct access to their hardware features.
This book explores embedded programming with MicroPython using an STM32-based Nucleo board. It shows how a microcontroller continuously interacts with its environment by reading inputs, processing information, and controlling outputs. Step by step, you will learn to flash LEDs, measure analog signals, work with sensors, control actuators, and exchange data with other devices. The built-in REPL makes it easy to test instructions immediately, inspect results, and learn through experimentation.
Although microcontroller boards differ in size, speed, memory, and peripherals, the fundamental concepts remain largely the same. Digital input and output, analog conversion, timers, PWM, interrupts, and serial communication are the essential building blocks of embedded applications.
By concentrating on these transferable principles, the book provides a foundation that remains useful when moving to other boards, processors, or development environments.
It is intended both for newcomers and for programmers who want to expand into embedded systems. MicroPython offers a practical route into this field, combining quick results with a clear understanding of how software and hardware work together.