Review – Page 2

This Soldering Iron Is Actually Nice | Voltlog #471

In recent years, the majority of soldering iron manufacturers have switched to using cartridge-style tips, which integrate the heater and thermocouple for optimal thermal conductivity and fast response. As a result, most soldering irons and stations that use these tips offer adequate soldering performance for the average user.

While reviewing thermal performance in great detail may not be as crucial nowadays, aspects like usability and accuracy are more important to consider. The FNIRSI HS-01 soldering iron is a portable and capable option that impresses with its excellent build quality and functionality. It comes with a 65W GaN USB-C charger, a flexible silicone-insulated USB-C cable, and a compact holder for the iron.

The tips are similar to Hakko T12 or T15 but shorter, allowing for greater precision when soldering small components. One standout feature is the intuitive temperature adjustment in 10-degree increments, making it quick and easy to dial in the desired setting. The iron also offers a sleek OLED display, a power percentage bar graph, and various settings accessible through a menu system.

In testing, the FNIRSI HS-01 handled soldering tasks with ease, from melting solder on large pads to precisely soldering pin headers and SMD components. Its ability to run from a power bank adds to its portability, making it an excellent choice for on-the-go soldering or as a backup to a dedicated soldering station.

Overall, the FNIRSI HS-01 soldering iron is a highly recommended option for those seeking a portable and capable soldering solution, offering excellent value for its performance and features.

The New Rigol DHO800 Series Review | Voltlog #469

The wait is finally over for Rigol enthusiasts! After eight long years, the renowned oscilloscope brand has unveiled the highly anticipated DHO800 series, a remarkable upgrade to the beloved DS1054Z. As a proud owner of the latter, I was thrilled to get my hands on the top-of-the-line DHO814 model, courtesy of Eleshop.eu and Rigol.

Straight out of the box, the DHO814 exudes an air of modernity and refinement. Its compact, featherweight form factor is a stark contrast to its robust predecessor, promising to save precious real estate on your workbench. The glossy, 7-inch capacitive touchscreen with a resolution of 1024×600 pixels adds a touch of elegance, while the familiar array of buttons and knobs ensures a seamless transition for seasoned users.

Under the hood, the DHO814 packs a punch with an array of impressive upgrades. The bandwidth now starts at a respectable 70MHz, with the top-tier model boasting a 100MHz capability. The sampling rate has received a modest boost to 1.25GS/s, while the vertical resolution has undergone a game-changing leap to 12 bits, promising unparalleled signal capture and visualization.

One of the standout features is the UltraAcquire mode, which enables a staggering waveform capture rate of up to 1 million waveforms per second, ensuring you never miss a transient event. The memory depth has also increased to 25Mpts, providing ample headroom for intricate signal analysis.

Mastering PCB Cleaning with an Ultrasonic Cleaner! | Voltlog #467

Keeping your Printed Circuit Boards (PCBs) in pristine condition is crucial for ensuring optimal performance and longevity. While no-clean solder products are available, many fluxes and soldering materials leave residue that can corrode components, cause leakage currents, and compromise the overall aesthetics of your projects.

Fortunately, an ultrasonic cleaner offers a convenient and effective solution for thorough PCB cleaning. In this comprehensive guide, we’ll explore the benefits of using an ultrasonic cleaner, essential safety precautions, and a step-by-step process for achieving impeccable PCB cleaning results. The principle behind ultrasonic cleaning is a phenomenon called cavitation.

High-frequency sound waves create rapid pressure changes within the cleaning solution, generating countless microscopic bubbles that form and implode. As these bubbles collapse near the surface of the PCB, they release intense energy, dislodging dirt, contaminants, and residue from even the most hard-to-reach areas.

Before diving into the cleaning process, it’s crucial to observe a few safety precautions. Firstly, never run an ultrasonic cleaner dry, as it can overheat and damage the unit. Secondly, avoid using flammable liquids, as they pose a fire risk when heated. Lastly, consult component datasheets to ensure that the parts can withstand ultrasonic cleaning and submersion in liquids.

To achieve optimal cleaning results, choose a high-quality ultrasonic cleaner like the VEVOR Ultrasonic Cleaning Machine, which offers adjustable temperature, cleaning time, and ultrasonic power settings. Pair it with a suitable cleaning solution and deionized water for best results. The cleaning process itself is straightforward: fill the cleaner with the appropriate solution, submerge the PCB, and let the ultrasonic waves work their magic.

Post-cleaning steps include rinsing the PCB in deionized water and drying it with compressed air. One of the significant advantages of ultrasonic cleaning is its ability to dislodge residue from hard-to-reach areas, such as between component leads and under IC packages, ensuring a level of cleanliness unachievable through manual brushing alone.

New 50Hz Thermal Camera Thermal Eye XH09 | Voltlog #464

The Thermal Eye XH09 from Xinfrared is a game-changer in the world of affordable thermal imaging cameras. With its impressive 256×192 resolution and a groundbreaking 50Hz refresh rate, this camera sets a new standard for outdoor enthusiasts and hunters seeking fluid and accurate thermal imaging capabilities.

The doubled refresh rate is the XH09’s standout feature, significantly enhancing the fluidity and real-time responsiveness of the thermal image. When tracking fast-moving targets or observing dynamic scenes, this rapid refresh rate ensures minimal lag, offering a seamless and detailed view of the surroundings.

Imagine being out in the woods, tracking wildlife or scouting for game – the XH09’s enhanced refresh rate ensures that even the slightest movements are captured swiftly and accurately, allowing for precise detection and tracking, giving you a notable advantage. While maintaining the high resolution and quality expected from Xinfrared, the XH09 also boasts practical features like an adjustable lens, allowing focal length adjustments from 9 to 13mm, and an observable distance of up to 500m for a 2m wide deer.

The included hard EVA carry case, USB Type-C cable, and mounting handle make it a convenient and portable solution for outdoor adventures. Beyond its outdoor prowess, the XH09 excels in household inspections, enabling you to detect potential insulation issues, check underfloor heating, or inspect electrical wiring with ease.

Its versatility and high-performance imaging capabilities make it a valuable tool for a wide range of applications.

Inside the RAK7289v2 LoRa Gateway & TTN Setup Tutorial | 465

In this engaging video, we embark on an insightful journey through the installation and setup process of the RAK7289v2 LoRa Gateway. The video begins with a captivating teardown, unveiling the intricate design and components that make this gateway a powerhouse in IoT connectivity. The disassembly reveals a meticulously engineered system, with multiple antennas strategically positioned for optimal performance.

The layered metal shielding not only provides a robust mounting point but also creates a solid ground plane, minimizing electronic interference and ensuring seamless antenna functionality. As we delve deeper, we uncover the core components that drive this gateway’s capabilities. The RAK634 WiFi Module ensures reliable wireless connectivity, while the RK5146 LoRa Concentrator module, with its 8-channel capacity, forms the backbone of the LoRaWAN communication.

The RAK8213 module, housing the Quectel EG95-E LTE modem, enables cellular connectivity, further expanding the gateway’s versatility. The video also sheds light on the power input circuitry, meticulously analyzing the components to ensure compatibility with various voltage inputs, including lead-acid batteries.

This attention to detail ensures reliable operation in diverse environments, including remote installations. Moving beyond the hardware, the video provides a comprehensive tutorial on configuring the RAK7289v2 gateway to connect to The Things Network (TTN). From initial setup to remote management using RakWireless’ WisDM interface, every step is carefully explained, empowering viewers to seamlessly integrate their gateways into the IoT ecosystem.

2023’s Best Electronics Engineer Gifts | 462

As an electronics engineer, having the right tools can make all the difference in productivity and efficiency. With the 11.11 Shopping Festival just around the corner, it’s the perfect time to upgrade your workbench or surprise your engineer friend with a thoughtful gift. In this guide, we’ve curated a list of top-notch products that are sure to delight any tech enthusiast.

First on the list is high-quality ESD protection from Welectron. Their anti-static mats are not only durable and chemical-resistant but also free from unpleasant odors, ensuring a comfortable working environment. Whether you need a large mat for your workbench or a compact one for your computer desk, Welectron has got you covered.

Next up is the highly anticipated Raspberry Pi 5, a true powerhouse for any electronics engineer or hobbyist. With a significant performance boost and new features like PCIe Gen2 and an RTC module, this little computer packs a punch. As an official Raspberry Pi distributor, Welectron is the go-to source for snagging one of these coveted devices.

For those in need of a thermal camera, the options are diverse and tailored to different use cases. The DytSpectrumOwl is a top choice for PCB inspection on your workbench, while the UNI-T UTi260B and Infiray P2 PRO offer portability and macro lens capabilities, respectively. Whichever you choose, a thermal camera can unlock new levels of productivity and troubleshooting prowess.

The Sugon 8650 Hot Air Station is a game-changer for soldering and rework tasks. With its precise temperature regulation, massive power output, and user-friendly interface, this station can handle even the most demanding jobs with ease. Investing in this top-of-the-line tool is a surefire way to elevate your soldering skills.

Last but not least, the FNIRSI USB power monitors (FNB58 and FNB48) are sleek and highly capable tools for measuring USB power delivery. With their exceptional resolution, cable chip detection, and Bluetooth data logging, these monitors are a must-have for any engineer working with USB-C and power delivery protocols.

MDP701 New Micsig High Voltage Differential Probe Series | Voltlog #459

Welcome to a new Voltlog episode! Today, we’re diving into the world of high-voltage differential probes with the Micsig MDP701. This latest offering from Micsig builds upon the success of their renowned DP series, delivering impressive upgrades and cutting-edge features. Derived from their innovative SigOFIT optical fiber isolated probe technology, the MDP701 boasts an expanded bandwidth of up to 200MHz, with a 500MHz version on the horizon.

This increased bandwidth ensures accurate and detailed measurements, even in high-frequency applications. Additionally, the Common Mode Rejection Ratio (CMRR) has been significantly enhanced, reaching an impressive -26dB at 100MHz and better than -80dB at DC, ensuring precise differential measurements.

Micsig’s commitment to quality is evident in the MDP701’s premium build. The probe features a sleek metal enclosure for the oscilloscope interface and a smooth matte black plastic body, exuding a professional and durable feel. The high-quality cables and strain reliefs further reinforce the product’s robustness.

In our hands-on review, we showcase the MDP701’s performance in a high-voltage measurement scenario, highlighting its ability to safely measure active switching devices in a power supply operating on mains voltage. The probe’s 5MHz bandwidth limit switch effectively reduces unwanted noise, ensuring clean and accurate waveform displays.

While the MDP701 lacks the hard carry case of its predecessor, it compensates with a comprehensive accessory kit, including test clips and a USB-C cable for convenient connectivity. Whether you’re an electronics enthusiast or a professional engineer, the Micsig MDP701 is a valuable addition to your toolkit.

Available through distributors like eleshop.eu, this high-performance differential probe is now within reach for a broader audience.

AllPowers R600 LiFePo4 Power Station Review & Teardown | Voltlog #456

Welcome to an in-depth review and teardown of the AllPowers R600 LiFePo4 Power Station. This robust power station is a true powerhouse, designed to cater to the needs of outdoor enthusiasts, travelers, and those seeking a reliable backup solution during power outages. Boasting a substantial 299Wh capacity, the R600 is built around LiFePo4 battery cells, offering several advantages over traditional lithium-ion batteries.

These cells provide an impressive cycle life of 3,000-4,000 cycles before losing 20% capacity, a wider operating temperature range, better depth of discharge tolerance, and enhanced safety due to their inherent chemistry. Despite its impressive capacity, the R600 is a heavyweight contender, tipping the scales at 7.3kg – nearly double the weight of its lithium-ion counterpart, the R600.

This added heft is a trade-off for the increased energy density of lithium-ion cells. The R600 is a versatile powerhouse, offering a plethora of output options. It features two AC outlets (600W max, 1200W peak), two USB-C ports with Power Delivery up to 200W, two USB-A ports with Quick Charge support, and two DC outputs (12V, 10A max).

This wide range of outputs ensures compatibility with various devices, from laptops and smartphones to power tools and appliances. One of the standout features of the R600 is its built-in UPS functionality. With a claimed 10ms switchover time, the R600 can seamlessly transition from grid power to battery power, ensuring uninterrupted operation during power outages.

This feature is a game-changer for those who rely on consistent power for critical tasks or equipment. The R600 also offers solar charging capabilities, with support for up to a 200W solar panel and a maximum input of 300W. This eco-friendly charging option makes the R600 an ideal companion for off-grid adventures or sustainable living.

In terms of build quality, the R600 exudes a premium feel. Its robust enclosure, reinforced with ribs and stiffening rods, ensures durability and protection for the internal components. The attention to detail is evident in the use of high-temperature silicone wiring, labeled connectors, and a modular design for easy maintenance or repairs.

While the R600 boasts impressive features and capabilities, it’s important to note that its larger form factor and increased weight may not suit everyone’s needs, especially for those prioritizing portability. However, for stationary use or short-distance transportation, the R600 is an excellent choice, offering a reliable and safe power solution with ample capacity and versatility.

KAISI TX-350E Soldering Microscope Review | Voltlog #455

In this comprehensive review, we take an in-depth look at the Kaisi TX-350E soldering trinocular microscope, an affordable and high-quality tool that can significantly enhance your soldering and inspection work. With a 7-50X zoom capability and a 100mm working distance, this microscope offers a clear and detailed view of even the smallest components.

One standout feature of the Kaisi TX-350E is its built-in fume extractor, a unique addition that helps remove solder fumes from your work area, ensuring a safer and more comfortable working environment. The microscope also comes with a camera port, allowing you to connect a separate camera for documentation or video purposes.

Unboxing the microscope reveals a well-designed and sturdy build, with all the necessary components neatly packaged. Assembly is straightforward, even without consulting the user manual, thanks to the intuitive design. The included ring light and adjustable brightness control ensure optimal illumination for your work surface.

While the working distance of 80mm may not be the most generous, it is still practical for most soldering and inspection tasks. The clear and crisp image through the eyepiece, combined with the stereoscopic view, provides excellent depth perception and detail, making it easier to work with tiny components and intricate repairs.

For those interested in using a camera with the microscope, the provided adapter allows for adjustments and focus fine-tuning, although parfocaling (achieving focus in both the eyepieces and camera port simultaneously) may require some effort. Overall, the Kaisi TX-350E soldering trinocular microscope is a well-built and feature-rich tool that offers excellent value for its price point.

Whether you’re a hobbyist or a professional in the electronics industry, this microscope can be a valuable addition to your workbench, simplifying soldering and inspection tasks with its magnification capabilities and unique fume extraction feature.

EastTester ET5410A+ Electronic Load Review | Voltlog #453

In this comprehensive review, we take an in-depth look at the EastTester ET5410A+ Electronic Load, a 400W max, 150V, and 40A fully programmable dummy load. With its 3.2-inch TFT display, this unit promises an improved user interface over the 7-segment display found in the Kunkin KP184. However, as the review unfolds, it becomes clear that while the ET5410A+ has some notable strengths, it also has areas that could benefit from improvement.

One of the key aspects evaluated in the review is the accuracy and precision of the unit. The manufacturer claims a resolution of 1mV and 1mA, but the reviewer found that this was not always the case, with the display sometimes showing only 10mV and 10mA resolution. After some investigation, it was discovered that a setting in the menu allowed switching between a low range (20V, 3A) and a high range (150V, 40A), which affected both the maximum input and the display resolution.

The functionality of the ET5410A+ is impressive, with features like battery testing, LED testing, and transient testing modes. However, the review highlights some potential software bugs, particularly with the battery discharge feature in Constant Resistance mode, which some users reported issues with on older firmware versions.

Build quality is a mixed bag, with both good and bad aspects. The reviewer praises the overall PCB assembly but raises concerns about the mains earth wiring, placement of wires and connectors, and the lack of full plated footprint holes for the MOSFETs. Safety concerns are also raised, with the earth connection passing through the PCB and soldering issues observed during the teardown.