Two reasons can be identified for the immense success of the Arduino platform. First, the cheap, ready to go processor board greatly simplifies the introduction to hardware. The second success factor is the free and open-source programming suite that does not require an installation procedure. Simple entry-level examples ensure rapid successes. Complex selection procedures for parameters like the microprocessor version or interface settings are not required. The first sample programs can be uploaded to the Arduino board, and tested, in a matter of minutes. The Arduino user is supported by an array of software libraries. However, the daily increasing volume of libraries poses initial problems to the newcomer, and the way ahead may be uncertain after a few entry-level examples. In many cases, detailed descriptions are missing, and poorly described projects tend to confuse rather than elucidate. Clear guidance and a single motto are missing, usually owing to the projects having been created by several different persons—all with different aims in mind. This book represents a different approach. All projects are presented in a systematical manner, guiding into various theme areas. In the coverage of must-know theory great attention is given to practical directions users can absorb, including essential programming techniques like A/D conversion, timers and interrupts—all contained in the hands-on projects. In this way readers of the book create running lights, a wakeup light, fully functional voltmeters, precision digital thermometers, clocks of many varieties, reaction speed meters, or mouse controlled robotic arms. While actively working on these projects the reader gets to truly comprehend and master the basics of the underlying controller technology.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. PbMonitor v1.0A Battery-Monitoring System for UPS and Energy Storage Applications Solar Charge Controller with MPPT (1)Basic Principles of a Solar Controller for Stand-Alone Systems B-Field Integration Magnetometer With Home-Made Sensors Precise or Accurate?Your Instruments Need to Be Both! AD7124 A Precision ADC in PracticeFeatures for Sensor Signal Conditioning PID Control ToolOptimize Your Parameters Easily embedded world 2025 Starting Out in Electronics……Continues with Tone Control Academy Pro BoxBook + Online Course + Hardware Milliohmmeter AdapterUses the Precision of Your Multimeter The Next Leap in SemiconductorsOnward Toward 1.4 nm Through-Hole Technology ConnectorsThe Best of Two Worlds: THR Frequency CounterPortable and Auto-Calibrating Via GPS Analog MetersPeculiar Parts, the Series Stand-Alone Crystal TesterHow Accurate Is Your Clock Source? Low-Cost I²C TesterConnect I²C Devices Directly to Your PC From Life’s ExperienceWho Doesn’t Honor the Small Things? 2025: An AI OdysseyThe Transformative Impact on Software Development Err-lectronicsCorrections, Updates, and Readers’ Letters Raspberry Pi Standalone MIDI Synthesizer (2)Enhancing Our Setup with Intelligence Nortonized Wien Bridge OscillatorSmall Changes Yield Significant Improvements Putting a $0.10 Controller to the TestThe CH32V003 RISC-V Microcontroller and MounRiver Studio in Practice An FPGA-Based Audio Player with Equalizer (2)Adding Volume Control, Advanced Mixing, and a Web Interface

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Computer vision is probably the most exciting branch of image processing, and the number of applications in robotics, automation technology and quality control is constantly increasing. Unfortunately entering this research area is, as yet, not simple. Those who are interested must first go through a lot of books, publications and software libraries. With this book, however, the first step is easy. The theoretically founded content is understandable and is supplemented by many practical examples. Source code is provided with the specially developed platform-independent open source library IVT in the programming language C/C++. The use of the IVT is not necessary, but it does make for a much easier entry and allows first developments to be quickly produced. The authorship is made up of research assistants of the chair of Professor Ruediger Dillmann at the Institut für Technische Informatik (ITEC), Universitaet Karlsruhe (TH). Having gained extensive experience in image processing in many research and industrial projects, they are now passing this knowledge on. Among other subjects, the following are dealt with in the fundamentals section of the book: Lighting, optics, camera technology, transfer standards, camera calibration, image enhancement, segmentation, filters, correlation and stereo vision. The practical section provides the efficient implementation of the algorithms, followed by many interesting applications such as interior surveillance, bar code scanning, object recognition, 3-D scanning, 3-D tracking, a stereo camera system and much more.

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Learn to interface and program hardware devices in a wide range of useful applications, using ARM7 microcontrollers and the C programming language. Examples covered in full detail include a simple LED to a multi-megabyte SD card running the FAT file system. Features of this book Build prototype circuits on breadboard or Veroboard and interface to ARM microcontrollers. A 32-bit ARM7 microcontroller is used in interfacing and software examples. Interfacing principles apply to other ARM microcontrollers and other non-ARM microcontrollers as well. Example programs are written in the C programming language. Use only free or open source software. Download and install all programming tools from the Internet. Template project files are provided for easy project creation. Hardware Interface to LEDs, transistors, optocouplers, relays, solenoids, switches, keypads, LCD displays, seven segment displays, DC motors, stepper motors, external analogue signals using the ADC, RS232, RS-485, TWI, USB, SPI and SD memory cards. Software Once hardware has been interfaced to a microcontroller, software must be written to control the hardware. You will learn how to write programs to operate externally interfaced hardware devices, use timers and interrupts. Also learn how to port FAT file system code for use with an SD memory card, program the PWM to produce an audio sine wave, program the PWM to speed control a DC motor and more. A chapter on more advanced ARM microcontrollers is included with an overview of some of the newest ARM microcontrollers and their features.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. Low-Noise Lab Power Supply (1)A Quiet Source for Sensitive Circuits STM32 Edge AI Contest 2025: The Winners Batteries TodayTechnology and Differences in Lithium Batteries Adjustable Electronic LoadStatic + Dynamic DC Load Step-Down Converter from 48 V to 5 VThe Story of Circuit Development Autonomous Sensor Node v2.0Part 2: Hardware Validation and Power Optimizations VaristorsPeculiar Parts, the Series Graphical Grid Frequency MeterMonitor Grid Quality Starting Out in Electronics……Brings Its Own End Peak Current Load SMD FerritesMore Resilient Against Current Peaks Elektor Live! Expert Day 2025 Energy Harvesting Set to Accelerate IoT and IIoT Use CasesHow Energy Harvesting Frees IoT from the Grid Fnirsi DPS-150Compact and Portable Power Supply and Converter Adjustable USB-C Power SourceTurn Your USB-C Charger Into an Adjustable Power Supply Simple Charger and Capacity TesterWith Two Cheap “Off-the-Shelf” Modules Smart Color Detector with AI Voice and Playback PbMonitor v2.0Introduction to the Updated Battery Monitoring System A Fan for the Mini Reflow PlateSmart Modifications That Improve Results From Life’s ExperienceThe Tsunami of Indulgence Err-lectronicsCorrections, Updates, and Readers’ Letters 2026: An AI OdysseyWhen Models Start Dictating the Hardware Precision Picoammeter (2)Assembling, Calibration, and Test Wireless Device Poweringwith Inductive Technology AI-Based Autonomous DrivingThe RDW’s Self Driving Challenge 2024 Sound Card as Signal GeneratorPC as DCF77 Test Transmitter

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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.

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The OWON XSA815-TG (9 kHz-1.5 GHz) is a cost effective spectrum analyzer with tracking generator included and a frequency resolutions of 1 Hz. Features Frequency Range from 9 kHz to 1.500009 GHz 9-inch display 9 kHz to 1 MHz -95 dBm Displayed Average Noise Level, 1 MHz to 500 MHz 140 dBm (Typical), <-130 dBm Phase Noise -10 kHz <-80 dBc/Hz 100 kHz <-100 dBc/Hz 1 MHz <-115 dBc/Hz Resolution Bandwidth (-3 dB): 1 Hz to 1 MHz, in 1-3-5-10 sequence Tracking Generator Kit: 100 kHz to 1.500009 GHz Specifications Frequency Range 9 kHz to 500.009 MHz Frequency Resolution 1 Hz Frequency Span 9 kHz to 1.500009 GHz Span Range 0 Hz, 100 Hz to max frequency of instrument Span Uncertainty ±span / (sweep points-1) SSB Phase Noise (20°C to 30°C, fc=1 GHz) Carrier Offset 10 kHz <-80 dBc/Hz | 100 kHz <-100 dBc/Hz | 1 MHz <-115 dBc/Hz Resolution Bandwidth (-3 dB) 1 Hz to 1 MHz, in 1-3-5-10 sequence RBW Accuracy <5% typical Resolution Filter Shape Factor (60 dB: 3 dB) <5 typical Video Bandwidth (-3 dB) 10 Hz to 1 MHz, in 1-3-5-10 sequence Amplitude measurement range DANL to +10 dBm, 100 kHz to 10 MHz, Preamp Off DANL to +20 dBm, 10 MHz to 1.5 GHz, Preamp Off Reference Level -80 dBm to +30 dBm, 0.01dB by step Preamp 20 dB, nominal, 100 kHz to 1.5 GHz Input Attenuator 0 to 40 dB, 1 dB by step Display Average Noise Level Input attenuation = 0 dB, RBW = VBW = 100 Hz, sample detector, trace average ≥ 50, 20°C to 30°C, input impedance = 50 Ω) Preamp Off 9 kHz to 1 MHz -95 dBm (Typical), <-88 dBm Preamp Off 1 MHz to 500 MHz -140 dBm (Typical), <-130 dBm Preamp On 100 kHz to 1 MHz -135 dBm (Typical), <-128 dBm Preamp On 1 MHz to 500 MHz -160 dBm (Typical),<-150 dBm Tracking Generator (optional) Frequency Range 100 kHz to 1.500009 GHz Output power level range -40 dBm to 0 dBm Output level resolution 1 dB Output flatness Relative to 50 MHz | ±3 dB Tracking generator spurious Harmonic spurious -30 dBc (Tracking generator output power -10 dBm) Non-harmonic spurious -40 dBc (Tracking generator output power -10 dBm) Tracking generator to input terminal isolation -60 dB (Tracking generator output power 0 dBm) Tracking generator to input terminal isolation -60 dB (Tracking generator output power 0 dBm) Tracking generator to input terminal isolation -60 dB (Tracking generator output power 0 dBm) Dimensions 375 x 185 x 120 mm Weight 3.7 kg Included 1x XSA815-TG 1x 220 V AC power cord 1x USB Cable 1x Quickstart guide Downloads Quick Guide Specifications

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Elektor GREEN en GOLD leden kunnen deze uitgave hier downloaden. Nog geen lid? Klik hier om een lidmaatschap af te sluiten. Project-update: ESP32-gebaseerde energiemeterwe gaan verder met het prototype Optimalisatie van balkon PV-centralesoverwegingen, interessante feiten en berekeningen ESP32 met OpenDTU voor balkoncentralesgegevens van kleine omvormers via MCU’s uitlezen Regelbare lineaire labvoeding0...50 V / 0...2 A + dubbele symmetrische voeding Energieopslag – vandaag en morgeneen vraaggesprek met Simon Engelke 2024: een AI-odysseehet houdt nog lang niet op Bluetooth LE op de STM32meetwaarden op afstand uitlezen Mensvriendelijk slim keuken-voorraadsysteem MAUI: programmeren voor PC, tablet en smartphonehet nieuwe framework in theorie en praktijk ChatMagLevkunstmatig intelligente levitatie Eenvoudige PV-regelaarbouw je eerste, volledig functionele PV-energiebeheersysteem Koude-kathode-buizenvreemde onderdelen Uit het leven gegrepennostalgie Alle begin......bekijkt de FET CAN-bus voor de Arduino UNO R4: een tutorialtwee UNO R4’s nemen de bus! Elektor infographicvoeding en energie Vergelijking van vermogensdichtheid en vermogensefficiëntie Aluminium elektrolytische condensatorenstoringspotentieel in audiotechnologie USB testen en metenmet de Fnirsi FNB58 De Pixel Pump pick&place-tooleenvoudiger handmatige assemblage van SMT-printen Oost West Lab Bestnog niet zo lang geleden, in een land heel ver van hier... “In de wereld van ethiek in elektronica kunnen zelfs kleine stappen een aanzienlijke invloed hebben.” Ethiek in elektronicade OECD Guidelines en het Lieferkettensorgfaltspflichtengesetz Chadèche: slimme NiMH-(ont)laderlezersproject in het kort Project 2.0correcties, updates en brieven van lezers

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This electronic dice with 7 red LEDs rolls when the push button is released and works with a 9 V battery (not included). Downloads Manual

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This highly sensitive source picoammeter is designed for measuring and logging very small currents down to the pA range – making it an ideal instrument for scientific and research applications, including physics, materials science and electron microscopy. Full-featured at an affordable price, the SPA100 combines sensitivity, accuracy and stability to allow users to measure low currents with high precision as well as conveniently source bias voltages for experimentation. SPA100 also doubles as an ultra-high resistance meter, measuring accurately into the teraohm range. The SPA100 connects to PC via USB and utilises the complimentary software SPA – enabling users to easily measure, graph and capture readings with timestamps and measurement stability information. Features Input: ±2 mA to ±200 pA in 8 ranges Accuracy and Resolution (2 Hz): ±2 mA range: ±0.1%, resolution <20 nA ±200 uA range: ±0.1%, resolution <2 nA ±20 uA range: ±0.2%, resolution <200 pA ±2 uA range: ±0.2%, resolution <20 pA ±200 nA range: ±0.5%, resolution <2 pA ±20 nA range: ±0.5%, resolution <200 fA ±2 nA range: ±1.0%, resolution <20 fA ±200 pA range: ±1.5%, resolution <2 fA Sample rate: 2 Hz (18 bit) or 10 Hz (16 bit) Adjustable filter: 1 sample to 64 samples Output voltage: -40 V to +40 V (in 1 V increments), output resistance 2.7 Kohms Resistance Measurement: ~1 Kohms to 40 Tohms (e.g 40 V source, 1 pA measure) Accuracy: >±0.5% 1 Mohm to 1 Tohm Powered via USB 2.0 (instrument uses up to 0.3 A when in-use) Included 1x SPA100 Source Picoammeter 1x USB cable Downloads Manual Software

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The SQ series of handsfree probes from Sensepeek have a lower point of gravity making them even more stable compared with the original SP series of handsfree probes. All probes in the SQ series are also insulated and can be used handheld as any traditional probe but their full potential is used when measuring handsfree. The SQ series of oscilloscope probes also includes more ground options, have probe tip protection, longer cable and support for oscilloscopes with automatic scaling (10:1). All the loved features of handsfree measurement, exchangeable fine pitch spring tipped test needle, color-coded cable holders and the minimalistic design is maintained to make traditional sized and handheld probes obsolete. 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. Features Passive 10:1 probe with support for oscilloscopes with automatic scaling Spring-loaded test needle for fine pitch measurements Multiple ground options Color coded cable holders Probe tip protection Insulated, can be used handheld Improved probe holder for handsfree measurement when used with PCBite PCB holders Included 1x SQ500 500 MHz probe with spring tipped test needle 1x SQ probe holder for handsfree measurement 1x Testhook with detachable cables (5 cm & 10 cm) for convenient ground connection 1x Alligator cable for convenient ground connection 1x Standard ground spring, for handheld measurements at rated bandwidth 1x Unique ground spring, for total handsfree measurements at rated bandwidth 1x Set of color coded cable holders (4 colors) 1x Probe tip protection 1x Extra test needle Downloads User Guide SQXX0 Rev1.1

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With the JOY-iT PS1440-C-Pro, you get a programmable laboratory power supply that delivers DC voltages ranging from 0.01 to 60 V and DC currents from 0.01 to 24 A at the voltage output. The intuitive control panel allows you to program, store, and recall up to 9 different DC voltage settings. You can also configure individual protection and limiting functions—such as overvoltage protection. All settings are easily adjusted via the keypad and/or rotary control and are clearly shown on the high-resolution 2.4" color display. For enhanced connectivity, the PS1440-C-Pro includes an RS485 interface for robust, long-distance communication. This makes it ideal for complex setups where signal stability, noise immunity, and reliable data transfer are critical. The included connector ensures a secure connection, improving the overall reliability and performance of your laboratory equipment setup. Features Complete device ready for immediate use RS485 interface 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 060 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 JOY-iT PS1440-C Power Supply 2-pin connector for RS485 interface Power cord Manual Downloads Datasheet MODBUS Protocol PC Software Driver for Windows

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High-quality soldering station with the most important tools and consumables, ideal for universal soldering applications. Features 1-Channel Power Unit, digital, 70 W Power unit, 1 channel with soldering iron WEP 70 and safety rest PH 70 70W solder iron with ergonomic handle and providing toolless tip change ESD safe station, iron and heat-resistant silicon cable for safe handling Using ET soldering tips Standby mode and auto setback conserves energy, protects equipment Password-protected to preserve settings Specifications Dimensions: 150 x 120 x 98 mm Weight: 1.4 kg Display: Digital LC Display Temperature range: Adjustable from 100°C - 450°C (200°F - 850°F) Voltage: 230 V Channels: 1 Temperature range (depends on tool) °C: 100-450 Temperature range (depends on tool) °F: 200-850 Temperature accuracy °C: Average tip temperature can be „offset“ to +/- 5°C at idle with no load Temperature accuracy °F: Average tip temperature can be „offset“ to +/- 9°F at idle with no load Temperature stability °C: ±6 Temperature stability °F: ±10 Heat-up time (ca) in seconds (50-350°C / 120-660°F): 28 sec. Heating output: 85 W

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The OWON SDS1104 oscilloscope is a practical choice for engineers, technicians, students, and hobbyists who need accurate signal analysis without the cost of high-end instruments. With its 100 MHz bandwidth and 1 GSa/s sampling rate, it reliably captures low- to mid-frequency signals, making it well suited for electronics development, troubleshooting, and educational use. Equipped with a 7-inch color TFT display, the SDS1104 provides clear waveform visualization, while automatic measurement functions and FFT analysis help users quickly evaluate frequency, voltage, and timing parameters. Advanced math operations, cursor measurements, and multiple trigger modes add further flexibility, making the oscilloscope a versatile tool for a wide range of testing scenarios. Specifications Bandwidth 100 MHz Sample Rate 1 GS/s Horizontal Scale (s/div) 5ns/div - 1000s/div, step by 1 - 2 - 5 Channel 4 Display 7" color LCD, 800 x 480 pixels Input Coupling DC, AC and GND Vertical Resolution (A/D) Vertical Resolution (A/D) Vertical Sensitivity 5mV/div - 5V/div (at input) Trigger Type Edge, Video Trigger Mode Auto, Normal and Single Waveform Math ＋, －, x, ÷, invert, FFT Fuse 2A, T class, 250 V Dimension (W x H x D) 301 x 152 x 70 mm Weight 1.1 kg Included 1x OWON SDS1104 Oscilloscope 1x Mains power cord 1x CD Rom 1x Quickstart Guide 1x USB Cable 4x Oscilloscope probe 1x Probe Adjust Downloads Datasheet Manual

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This OWON DC Power Supply has a small body and is easy to carry due to its light weight. Featuring a 3.7" TFT LCD display, it has a maximum output power of 180 W and a resolution of 1 mV/1 mA. Features Channel Single Channel Output Total Output Power 180 W Channel Output 0 - 60 V / 0 - 3 A × 1-CH Display 3.7' color LCD display Dimension 117 mm(L) × 194 mm(H) × 295 mm(D) Weight Approx. 5.8 kg Interface RS232 Specifications Rated Output (0 ℃ - 40 ℃) Voltage 0 - 60 V Current 3 A Load Regulation Voltage ≤ 0.01% + 3 mV Current ≤ 0.01% + 3 mA Power Regulation Voltage ≤ 0.01% + 3 mV Current ≤ 0.01% + 3 mA Setting Resolution Voltage 1 mV Current 1 mA Readback Resolution Voltage 1 mV Current 1 mA Setpoint accuracy (within 12 months) (25 ℃ ± 5 ℃) Voltage ≤ 0.03% + 10 mV Current ≤ 0.1% + 5 mA Readback Resolution (25 ℃ ± 5 ℃) Voltage ≤ 0.03% + 10 mV Current ≤ 0.1% + 5 mA Ripple/Noise (20 Hz - 20 MHz) Voltage (Vp-p) ≤ 4 mVp-p Voltage (Vrms) ≤ 1 mVrms Current (rms) ≤ 4 mArms Output temperature coefficient(0 ℃ - 40 ℃) Voltage ≤ 0.03% + 10 mV Current ≤ 0.1% + 5 mA Readback temperature coefficient Voltage ≤ 0.03% + 10 mV Current ≤ 0.1% + 5 mA Response Time 100 μs Storage 5 groups of data Working Temperature 0 - 40 ℃

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The OWON DGE3062 is a 14-bit function generator with a bandwidth of 60 MHz. It has 5 basic waveforms, 160 built-in arbitrary waveforms and the following comprehensive modulation functions: AM, FM, PM, PWM, FSK, 3FSK, 4FSK, PSK, ASK, BPSK, OSK, DSBAM, QPSK, SUM, sweep, Burst. Features Max. 60 MHz frequency output, 300 MSa/s Sample rate 14 bits Vertical Resolution, 100K Arb waveform length Comprehensive waveform output: 5 basic waveforms, and 160 built-in arbitrary waveforms Comprehensive modulation functions: AM, FM, PM, PWM, FSK, 3FSK, 4FSK, PSK, ASK, BPSK, OSK, DSBAM, QPSK, SUM, sweep, Burst SCPI and LabVIEW supported 3.6 inch LCD (480 x 272 pixels) Specifications Channel 2 Frequency Output 60 MHz Sample Rate 300 MSa/s Vertical Resolution 14 bits Waveform Standard Waveform Sine, square, pulse, ramp, noise Arbitrary Waveform Exponential rise, exponential fall, sin(x)/x, step wave, and others, total 160 built-in waveforms Frequency (resolution 1 μHz) Sine 1 μHz-60 MHz Square 1 μHz ~ 20 MHz Pulse 1 μHz ~ 20 MHz Ramp 1 μHz ~ 2 MHz Noise 20 MHz (-3 dB, typical) Arbitrary Waveform 1 μHz ~10 MHz Arbitrary Waveform Length 2 points – 100K points Sample Rate 300 MSa/s Amplitude Into 50Ω load 1mVpp ~ 10Vpp (≤10Hz), 1mVpp ~ 5Vpp (≤60 MHz) DC Offset Range (AD+DC ±(10 Vpk – Amplitude Vpp/2) high resistance±(5 Vpk – Amplitude Vpp/2) 50 Ω DC offset resolution 1 mV or 4 digits Load Impedance 50 Ω (typical) DC offset Accuracy ±(1% of |setting| + 1 mV + amplitude Vpp * 0.5%) Modulation Type AM,FM, PM, PWM, FSK, 3FSK, 4FSK, PSK, ASK, BPSK, OSK, DSB-AM, QPSK, SUM, Sweep, Burst Frequency Counter Function Frequency, period Frequency Range 100 MHz ~ 100 MHz Frequency Resolution 6 digits Input/Output Display 3.6” LCD Input mode External modulation input, external trigger input, external reference clock input/output Communication Interface USB Host, USB Device Mechanical specifications Dimensions (W x H x D) 200 x 92 x 157 mm Weight 0.8 kg Included 1x OWÒN DGE3062 Arbitrary Waveform Generator 1x Power Cord 1x Quick Guide 1x USB Cable 1x Q9 Cable 1x BNC to Alligator Clip Downloads Quick Guide Manual Software

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The OWON SPS6051 Fanless Programmable DC Power Supply (150 W) delivers ultra-quiet, high-precision performance with 10 mV/1 mA accuracy and advanced heat dissipation for long-term reliability. Featuring comprehensive protection, a USB interface with SCPI support for remote control, and a 2.8-inch TFT LCD screen, it is the perfect choice for laboratories, electronics testing, and research. Features Fanless design: Ultra-quiet operation, reducing vibration noise and minimizing the potential failure risks associated with traditional cooling fans. Excellent heat dissipation design: Ensures a controlled temperature rise, allowing long-term operation under full load conditions and extending internal component longevity. Lightweight and ultra-thin design. Output accuracy up to 10 mV/1 mA. Supports List waveform editing and output, with four memory shortcut parameters for quick and convenient access. Integrated protection features include overvoltage, overcurrent, overtemperature, and input undervoltage protection for enhanced safety. Built-in discharge circuit prevents residual high voltage risks when the power is turned off. USB communication interface with SCPI protocol support, enabling PC programming and remote control for simplified user management. 2.8-inch TFT LCD screen Specifications Model SPS6051 SPS3081 Rated Output (0°C-40°C) Voltage 0-61 V 0-31 V Current 0-5.1 A 0-8.1 A Power 150 W 120 W Load Regulation Voltage ≤30 mV Current ≤20 mA Power Regulation Voltage ≤30 mV Current ≤20 mA Setting Resolution Voltage 10 mV Current 1 mA Readback Resolution Voltage 10 mV Current 1 mA Seting Accuracy (25°C ±5°C) Voltage ≤0.05% ±20 mV ≤0.1% ±20 mV Current ≤0.05% ±20 mA ≤0.2% ±20 mA Readback Accuracy (25°C ±5°C) Current ≤0.05% ±20 mV ≤0.1% ±20 mV Voltage ≤0.05% ±20 mV ≤0.2% ±20 mA Ripple/Noise Voltage ≤30 mVp-p ≤30 mVp-p Voltage ≤4 mVrms ≤5 mVrms Current ≤10 mAp-p ≤30 mAp-p Output temperature coefficient (0°C-40°C) Voltage 100 ppm/°C Current 200 ppm/°C Readback temperature coefficient Voltage 100 ppm/°C Current 200 ppm/°C Response Time (50-100% rated load) ≤1.0 ms Storage 4 groups of data Working Temperature 0-40°C Display 2.8-inch color LCD display Interface USB Dimensions (W x H x D) 82 x 142 x 226 mm Weight 1.8 kg Included 1x OWON SPS6051 Power Supply 2x Test leads 1x Power cord 1x Manual Downloads Datasheet User Manual Programming Manual PC Software

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. USB Measurement AdapterTesting Current and Signal Quality of USB Ports 4...20 mA Current Output for Arduino UnoA Reliable, EMI-Insensitive Current Loop Interface Vacuum Cleaner Automatic ControlKeep Your Tools’ Work Area Clean DDS Generator with ATtiny Opamp-Tester V2New PCB – Now Also Suitable for SMDs 550-mW “Lamp” Audio AmplifierGet the Warm Sound of Vacuum Tubes With Ease Fuse GuardMonitoring a Fuse with a Flashing LED HQ RIAA PreamplifierGet the Most Out of Your Vinyl Records! Turntable Speed CalibratorAn Arduino-Based 100–120 Hz Strobe Light Generator Elektor Classics: video buffer/repeater Infrared Remote-Controlled DimmerControl Your Halogen or LED Floor Lamp Effortlessly and With Style How to Use switch…case on Strings in C++/Arduino IDE Magnet FinderWith a Simple Hall-Effect Sensor Raspberry Pi Smart Power ButtonA Solution for Raspberry Pi Up to Model 4 Essential Maker TipsProfessional Insights for Everyday Making Practical Projects with the 555 TimerDC Motor Control and Fast Reaction Challenges Basic AC-Load-On MonitorSave Energy with a Simple Device Power Banks in ParallelA Three-Day Continuous Power Solution VFO Up to 15 MHzAn Implementation With Raspberry Pi Pico Violin Tuner with ATtiny202 Elektor Classics: video amplifier for B/W television sets Capacitance Meter20 pF to 600 nF Quasi-Analog Clockwork Mk IITwo LED Rings for Hours and Minutes You Can Do Anything You Want(with the Arduino Ecosystem at Your Side) Neon Lamp Dice Elektor Classics: RTTY calibrator indicator Inspiring Hardware Designs for Your ESPs Elektor Classics: variable 3 A power supply RGB LEDs with Integrated Control CircuitLight with Precision: ICLEDs Set Standards Experiment: Towards a Mixed-Signal Theremin?Blending Modern Time-of-Flight Sensors With the Timeless XR2206 Analog Generator ESP32 Audio Transceiver Board (Part 1)SD Card WAV File Player Demo Infographics: Circuits and Circuit Design 2025 Small Audio MixerA Simple and Versatile Scalable Design Smart Staircase Light TimerSave More Money on the Energy Bill! Smarten Up Your ShuttersControlling Velux Hardware With an ESP32 and MQTT Solid-State Foot WarmerEnergy-Efficient Comfort Is the M5Stamp Fly Quadcopter the Next Tello? Boosting Wi-Fi Range of the ESP32-C3 SuperMiniA Simple and Effective Antenna Mod ZD-8968 Hot-Air Soldering StationA Budget-Friendly Workhorse or Just Hot Air? Parking Sensor TesterFinding Defects in the PDC System of a Car

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. The RISC-V Open-Source Processor Architecture16 Boards and MCUs You Should Know An FPGA-Based Audio Player with Equalizer (1)Mixing Digital Audio with an Arduino MKR Vidor 4000 Laser Head for Pico-Based Sand ClockDrawing with Light Enter the STM32 Edge AI Contest A Multi-Sensor Environmental Monitoring System for PlantsWireless Measurement of Water Supply and Light Conditions Maixduino AI-Powered Automatic DoormanFace Detection with a Camera Embedded Electronics 2024AI Is Set to Redefine the Industry Charge-Based In-Memory Compute at EnCharge AI AI Inferencing at 10 Times Lower Power and 20 Fold Lower Cost Click Board Helps Develop and Train ML Models for Vibration Analysis The Elektor Mini-WheelieA Self-Balancing Robot Kit MCU, I See YouMCUViewer Open-Source Multiplatform Debugging Tool USB 2.0 IsolatorElectrically Isolated Connections for USB Devices Intervention Before DamagePredictive Maintenance in Practice SPoE – Electromagnetic CompatibilitySingle-Pair with Power-Over-Ethernet Through the Eyes of EMC Color TV: A Wonder of Its TimeCreating a New World ECG Graph MonitoringAn Implementation with Hexabitz Modules and an STM32CubeMonitor The Battle for AI at the Edge HaLow Hits Record 16-km Wi-Fi Distance at 900 MHz First CHERI RISC-V Embedded Chip and Early Access Programme Third-Generation Wildfire Detection Uses Satellite Links From Life’s ExperienceChoice Overload Starting Out in Electronics……Continues Filtering and Controls Tone Quasi-Analog ClockworkA Remake of an Elektor Classic A Modular Approach to Sensor TestingThe ESP32-S3-Based Sensor Evaluation Board 2025: An AI OdysseyThe Rise of Foundation Models and Their Role in Democratizing AI Raspberry Pi Standalone MIDI Synthesizer (1)Preparing a Platform for Some Edge AI Experiments Err-lectronicsCorrections, Updates, and Readers’ Letters Universal AI RISC-V Processor Does It All — CPU, GPU, DSP, FPGA CEO Interview: Ventiva’s Thin and Cool Tech Dual-Core Programming with a Raspberry Pi PicoVenture Into the World of Parallel Programming

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Like its predecessors in the 300 series of electronics projects books, 303 Circuits is aimed at the active electronics enthusiast, professional or amateur. Since the series was started in the early 1980s, many thousands of readers have found in these books that new approach, new concept, or new circuit they were looking for. In 303 Circuits you will find new ideas, new concepts and new circuits covering the gamut of electronics. The book is arranged in subject sections to make it easier for you to find the circuit or idea you are looking for.

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in 10 captivating lessons Using the lessons in this book you learn how to program a microcontroller. You’ll be using JAL, a free but extremely powerful programming language for PIC microcontrollers, which enjoys great popularity in the hobby world. Starting out from scratch virtually, you slowly build up the knowledge. No previous knowledge is needed: anyone can get started with this book. Assuming you have absorbed all lessons – meaning you have actually completed all the exercises – you should be confident to write PIC microcontroller programs, as well as read and understand programs written by other people. JAL commands You learn the function of JAL commands such as include, pin, delay, forever loop, while loop, case, exit loop, repeat until, if then, as well as the use of functions, procedures and timer- and port interrupts. JAL programs You make an LED blink, build a time switch, measure a potentiometer’s wiper position, produce sounds, suppress contact bounce, and control the brightness of an LED. And of course you learn to debug, meaning: how to spot and fix errors in your programs. Hardware You learn to recognize various components including the PIC microcontroller, potentiometer and quartz crystal, and how to wire up a PIC microcontroller and effectively link it to your PC. A breadboard is used for the purpose, allowing you to easily modify the component arrangement for further experimenting. The companion software with this book can be downloaded free of charge, including the JAL programming language. In addition, you may order a kit of parts so you don’t have to go shopping for the required components. Especially for a beginner, this is the easiest way to start with this unique pastime. Having finished this book does not mean you are through with your pastime. You can get your hands dirty again, and if desired use other books packed with fun projects using the JAL programming language. More information may be found at the end of the lessons in the chapter "Done! What’s next?""

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310 Circuits – is the 11th volume in Elektor’s renowned ‘Three Hundred’ series. 310 circuits, tips and design ideas in one book form a treasure trove for every area of electronics: audio and video, hobby and modelling, RF techniques, home and garden, test and measurement, microcontrollers, computer hardware and software, power supplies and chargers – plus of course everything else that does not seem to belong in any of these categories. 310 Circuits – contains many complete solutions as well as useful starting points for your own projects. Both categories and anything in between represent a veritable fountain of inspiration for cultivating your own ideas and learning about electronics. 310 Circuits – is a compilation of articles from ‘Summer Circuits’ editions for the years 2006, 2007 and 2008. ‘Summer Circuits’ covers the publication months July and August of Elektor magazine. 310 Circuits – is a must-have book for every creative electronics enthusiast, be it professional, enthusiast or student. 310 Circuits – for the first time has a section exclusively on robots and robotics.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. PbMonitor v2.0 UpdateBattery Monitoring with Improved Analog Design Audio Latency MeasurementA Standalone Tool for Evaluating Errors and Latency in Audio Transmission Square Wave vs. Bode PlotChecking the Performances of an Audio Device embedded world 2026 Clever Coding with AIAI in Software Development for Electronics Engineers QA403 Audio AnalyzerAffordable Precision for Audio Professionals and Hobbyists EasyGimbalAutonomous Camera Tracking with AI, Stepper and Servo Motors Sigfox Breakout Board (2)Sending Messages Circuit ProtectionControlling Overvoltages with TVS Diodes Emerging Battery Testing ApproachesA New Era of Diagnostics AudiotronicsA First Preamplifier CANopenTermAn Open-Source Tool That Brings CAN to Makers and Engineers Alike Stabilization of Operational AmplifiersAvoiding Feedback Instability Err-lectronicsCorrections, Updates, and Readers’ Letters Signal ConditioningTips and Tricks to Fit Voltage Ranges TDR Attachment for OscilloscopesLength, Short Circuit, Mismatch: Measure Cables Using Reflections! From Life's ExperienceLED It Be Speaker Oscillator and Resonance TesterA Fully Experimental Project for Your Speakers Elektor Community Perspectives on Test and Measurement ESP32 Audio Transceiver Board (Part 5)Audio Processing and Remote Control 2026: An AI OdysseyAI Has a Context Problem Battery Storage for Balcony Power PlantsSmall Batteries, Big Impact

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Elektor Magazine EN May/June 2021 (PDF)

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