Збирач потоків

Motion is invisible until something makes it measurable. That is where inertial measurement units (IMUs) step in—the silent sensors that give machines their hidden sense of balance, orientation, and trajectory. From smartphones that know when you have rotated the screen, to drones that hold steady against the wind, IMUs translate raw acceleration and angular velocity into actionable awareness.

In this installment of Fun with Fundamentals, we will peel back the layers of these compact marvels, showing how they evolved from bulky gyroscopes into today’s precision-packed silicon companions.

The silent navigators: IMUs

An IMU is a compact, high-precision device that captures how an object moves and orients itself in space. Whether steering rockets into orbit, stabilizing drones overhead, or enabling smartphones to guide us through crowded streets, IMUs are the unseen systems that make modern navigation possible.

At the heart of an IMU are sensors that detect linear acceleration with accelerometers and rotational velocity with gyroscopes. Many designs also incorporate a magnetometer to provide heading information. A typical configuration combines a 3-axis accelerometer and a 3-axis gyroscope, forming a 6-axis IMU. When a 3-axis magnetometer is added, the system becomes a 9-axis IMU. Together, these sensors deliver measurements of specific force, angular rate, and surrounding magnetic fields—producing a complete dataset for motion and orientation tracking.

The accelerometers, gyroscopes, and—when included—magnetometers inside an IMU are collectively referred to as inertial sensors. These components form the foundation of inertial navigation, working together to capture motion and orientation data without relying on external signals. By fusing their outputs, engineers can derive precise information about how a device moves through space, even in environments where GPS or other external references are unavailable.

So, accelerometers measure linear acceleration, capturing how quickly an object speeds up or slows down. Gyroscopes sense angular velocity, revealing the rate and direction of rotation. Magnetometers, when included, detect magnetic fields and provide heading information relative to Earth’s magnetic north.

It’s worth noting that engineers still deploy both 6-axis and 9-axis IMUs, depending on the demands of the application. A 6-axis unit, built from accelerometers and gyroscopes, is often sufficient for tasks like stabilizing drones, balancing robots, or monitoring automotive motion, where relative movement and rotation are the primary concerns.

In contrast, a 9-axis IMU adds a magnetometer, giving it the ability to resolve absolute heading. This makes it the preferred choice in smartphones, wearables, and advanced navigation systems, where orientation relative to Earth’s magnetic field is critical. In practice, the simpler 6-axis design remains a cost-effective workhorse, while the 9-axis variant dominates in consumer electronics and navigation-heavy applications.

Figure 1 A vintage mechanical inertial navigation system (INS) component achieves autonomous navigation by integrating an inertial measurement unit with a computational unit. Source: Author’s archives

Simply put, a typical IMU places one accelerometer and one gyroscope along each of the three principal axes, ensuring motion and rotation are captured in all directions. In some designs, a magnetometer is also added per axis to provide heading information, but this is not always the case—many IMUs operate effectively without it.

Beyond these core sensors, certain IMUs incorporate auxiliary elements such as temperature monitors, since accelerometers and gyroscopes are prone to thermal fluctuations that can compromise accuracy. By recording temperature data, the system compensates for thermal drift, stabilizing sensor outputs and improving overall reliability.

Evolution and types of IMUs

From the gimbaled IMUs of the aerospace pioneers to today’s miniaturized MEMS-based devices, IMUs have undergone a remarkable transformation. Early gimbaled systems relied on mechanically stabilized platforms, bulky yet precise, before giving way to strapdown IMUs that fixed sensors directly to the vehicle body, reducing size and complexity.

With the rise of microelectromechanical systems (MEMS), silicon MEMS IMUs became the standard for consumer electronics, robotics, and drones, prized for their low cost, compact size, and efficiency. For tactical and industrial applications, Quartz MEMS IMUs emerged, offering greater stability and resilience under temperature and vibration compared to silicon designs.

At the high-end, ring laser gyroscope (RLG) IMUs and fiber-optic gyroscope (FOG) IMUs represent the pinnacle of precision, both exploiting the Sagnac Effect to measure rotation. RLGs use laser beams circulating in a closed cavity, while FOGs rely on long coils of optical fiber—an approach that reduces maintenance needs and improves durability while delivering comparable accuracy.

Today, engineers select from this spectrum—silicon MEMS for affordability and portability, quartz MEMS for tactical reliability, and RLG/FOG systems for uncompromising accuracy—depending on mission requirements.

Figure 2 The Motus ultra‑high‑accuracy MEMS IMU enables precision in autonomous system applications. Source: Advanced Navigation

As a side note, it’s worth mentioning that while IMUs deliver raw measurements of acceleration and angular velocity, an attitude and heading reference system (AHRS) builds on this foundation by applying sensor fusion algorithms to provide stabilized orientation outputs: pitch, roll, yaw, and heading. In practice, AHRS units are IMUs with embedded processing, making them more directly usable in aircraft, marine, and robotic platforms where orientation data is required in real time.

Advanced IMU categories

Beyond the broad spectrum of MEMS and optical gyroscope technologies, IMUs can also be classified by their functional purpose. A north-seeking IMU is designed to determine true north without relying on external references such as the global navigation satellite system (GNSS) or magnetic compasses.

By exploiting the Earth’s rotation and combining precise gyroscope measurements, these systems achieve sub-degree heading accuracy, making them invaluable in marine navigation, underground operations, and defense applications where absolute orientation is critical.

In contrast, a navigation IMU focuses on tracking motion and orientation over time. It provides raw acceleration and angular velocity data that, when processed within an inertial navigation system (INS), yields position, velocity, and displacement. Navigation IMUs are widely deployed in aerospace, robotics, and consumer electronics, where continuous motion tracking and drift management are more important than absolute north-finding.

Together, these advanced categories highlight how IMUs are not only differentiated by sensor technology—silicon MEMS, quartz MEMS, RLG, or FOG—but also by the specific role they play in navigation systems, from heading determination to full trajectory tracking.

Practical pointers for engineering minds

IMUs are no longer the nightmares they once seemed. Thanks to today’s accessible sensor modules, open-source libraries, and low-cost development boards, even a novice maker can experiment with inertial measurement units without needing aerospace-grade expertise. What was once the domain of defense labs and high-end avionics has now become approachable for hobbyists, students, and engineers alike, making hand-on exploration of motion sensing and navigation both practical and affordable.

First off, note that modern inertial modules often advertise “IMU, AHRS, and INS options” because the same hardware platform can deliver different levels of functionality depending on firmware and processing. At the most basic level, the unit acts as an IMU, outputting raw accelerometer and gyroscope data. With onboard sensor-fusion algorithms, it becomes an AHRS, providing stabilized orientation in pitch, roll, yaw, and heading.

When paired with a computational unit and often GNSS input, the same device scales up to a full INS, achieving autonomous navigation with position, velocity, and orientation. This tiered approach lets engineers choose the level of integration that matches their application, from hobbyist UAVs to aerospace systems.

Modern IMUs give engineers and makers practical choices across performance levels. High-end devices like Analog Devices’ ADIS16575/ADIS16576/ADIS16577 deliver factory calibration, low bias drift, and digital outputs for precision robotics, autonomous systems, and aerospace projects.

At the same time, compact modules such as Murata’s SCH16T-K01 integrate gyro and accelerometer sensing for embedded applications, wearables, and IoT nodes. Together, these platforms show how inertial technology now scales from aerospace-grade accuracy down to plug-and-play modules, offering practical options for projects at every level.

Figure 3 The SCH16T‑K01 module combines a high‑performance 3‑axis angular rate sensor and 3‑axis accelerometer, delivering precise motion tracking for embedded, wearable, and IoT applications. Source: Murata

Besides, makers and hobbyists do not need to wrestle with bare chips anymore—prewired IMU breakout boards are widely available and come with headers and libraries, making motion sensing experiments plug-and-play. For newer designs, boards built around ST’s LSM6DSO/LSM6DSOX deliver reliable performance in a maker-friendly format, ensuring parts that are safe for ongoing projects.

Figure 4 Today’s prewired cards like the LSM6DSOX module—and other readily available IMU boards—let makers explore motion sensing with ease and enable reliable integration into advanced embedded projects. Source: Author

IMUs in practice and everyday life

Well, we are not balanced yet, but we have touched some fundamental and practical points in a rather random way. Still, the journey through IMUs shows how these sensors are not just abstract components for engineers; they are part of our everyday lives. From the stabilizing gimbals that keep cameras steady, to the motion tracking inside wearables, gaming controllers, and even automotive systems, IMUs quietly enable the seamless experiences we take for granted.

Figure 5 Today’s IMUs act as the unseen hand across entertainment, healthcare, and navigation—guiding cameras, gimbals, ships, trains, satellites, and aerospace systems, while also enabling makers to explore motion sensing with ease and integrate it reliably into advanced projects. Source: Author

The call now is to explore further—experiment with modules, build small projects, and see firsthand how this complex yet easy topic can transform ideas into motion-aware innovations.

T. K. Hareendran is a self-taught electronics enthusiast with a strong passion for innovative circuit design and hands-on technology. He develops both experimental and practical electronic projects, documenting and sharing his work to support fellow tinkerers and learners. Beyond the workbench, he dedicates time to technical writing and hardware evaluations to contribute meaningfully to the maker community.

Related Content

• Evaluating inertial measurement units
• GPS system with IMUs tracks first responders
• The role of motion sensors in the industrial market
• A Wireless Micro Inertial Measurement Unit (IMU)
• Inertial sensors are “stepping up” their game, at a cost

The post IMUs demystified: The hidden sense of machines appeared first on EDN.

Metallium Ltd of Subiaco, Western Australia, says that its subsidiary Flash Metals Texas Inc of Houston, TX, USA has completed Phase I of its Small Business Innovation Research (SBIR) contract with the US Department of War (DoW) through the Defense Logistics Agency (DLA)...

Відкрито меморіальну дошку на честь Володимира Бойка kpi ср, 04/08/2026 - 11:14

I discovered that adding a single 1N4004 diode to a Schmitt trigger RC oscillator increases edge jitter by 15x, turning a simple 4-component circuit into a cryptographic-quality hardware RNG for microcontrollers. I've done (What I think is) a pretty comprehensive write up of the project here: https://siliconjunction.top/2025/12/04/practical-hardware-entropy-for-arduino-projects/ submitted by /u/elpechos [link] [comments]

Аспірант НН ІМЗ Роман Педань: "Працювати з новим завжди цікаво" Інформація КП ср, 04/08/2026 - 09:28

Творчий сад Юрія Богомола Інформація КП ср, 04/08/2026 - 09:00

10eur keyboard from aliexpress, they really wanted to keep the pcb one layer submitted by /u/csln0 [link] [comments]

I’ve always been interested in sensors and their related electronics. These devices are the interface between the real, physical world and the telemechanical systems that make use of their outputs. It’s also fascinating how many basic sensor approaches have been devised and enhanced for basic parameters such as temperature, pressure, distance, light intensity, and more.

Now we are entering a new phase where advances in materials—especially metamaterials, often aided by lasers—are creating breakthrough in sensors that could not be envisioned or implemented just a few years ago.

In short, a metamaterial is an engineered, 2D structure composed of subwavelength-scale elements that precisely control electromagnetic waves, such as light or microwaves, at an interface. The metasurface is an ultra-thin resonant element with special physical properties.

It’s typically composed of sub-wavelength structures (meta-elements) arranged in a 2D plane, enabling control over the propagation and scattering of electromagnetic waves at sub-wavelength scale by adjusting the phase, amplitude, or polarization of the incident waves

A good example of such an innovation is seen in the thermally based photon-detector project at Duke University, where researchers have demonstrated the fastest pyroelectric photodetector to date. It works by absorbing heat generated by incoming light and can capture light from wavelengths across the electromagnetic spectrum. The ultrathin device requires no external power, operates at room temperature, and can be readily integrated into on-chip applications.

Conventional semiconductor photodetectors work by initiating electron flow when struck by visible light. In contrast, the pyroelectric detector approach (also called a thermal detector) generates electric signals when it’s heated up after absorbing light.

Pyroelectric detectors have been in use for decades due to their wideband characteristic, unlike semiconductor sensors that tend to be narrowband devices (which is not necessarily a bad thing, of course). However, these pyroelectric devices are not as responsive as solid-state devices, since they are relatively bulky and have larger thermal mass.

Although using a thermal scheme is normally slow compared to using photons to stimulate electrical current, it does not have to be that way. In the Duke approach, the metasurface-enabled pyroelectric photodetectors are fabricated by layering a well-established nanogap cavity metasurface structure on top of a pyroelectric thin film (Figure 1).

Figure 1 Schematic representation of metasurface-enabled photodetectors illustrating key dimensions (a) with SEM image of the metasurface absorber (b). The red area represents the metasurface array. Finite element simulations of a single plasmonic nanostructure showing a cross-section of the pyroelectric layer 30 ps after resonant excitation of the metasurface (c).

The metallic metasurface consists of an array of nanoscale silver square prisms (90 nm × 90 nm × 35 nm) separated from a gold film by a thin (10 nm) dielectric layer of Al2O3 (aluminum oxide or alumina).

When light strikes the surface of a nanocube, it excites the silver’s electrons, trapping the light’s energy through a phenomenon known as plasmonics (the interaction between electromagnetic radiation such as light and conduction electrons at metallic-dielectric interfaces), but only at a specific frequency controlled by the nanocubes’ sizes and spacings.

In the latest iteration, the light-absorbing metasurface is circular rather than rectangular to maximize its exposure while minimizing the distance the signal must travel. This phenomenon is so efficient at trapping light and absorbing its energy that it only requires an extremely thin layer of pyroelectric material beneath it to create an electric signal.

Measuring the performance is another challenge. So, they devised an innovative arrangement with two distributed-feedback lasers that “brightened” when their frequencies became close to the same as the device’s operating speed.

The nearly perfect, spectrally selective absorption of the metasurface, which initiates the photodetector response, is shown by white light reflectivity spectra (Figure 2).

Figure 2 White light reflectance spectrum of a detector is shown with a 1.3 × 10−3 mm2 active area of 40 μm diameter (a). Photocurrent responsivity spectra of the detector shown in (a) measured upon pulsed 100 nW light excitation as compared to that of a detector in which a gold film rather than a metasurface layer acts as an absorber (b). Photocurrent measured for the device presented in a) and b) upon pulsed 783 nm excitation at the indicated power with the beam size maintained to consistently have a diameter 5 μm smaller than that of the device (c).

The gold mirror alone efficiently reflects near-infrared light, while the metasurface exhibits a relative decrease (>95%) in reflectivity centered at 790 nm. The resonance wavelength is determined by the size of the Ag nanostructures and the thickness of the Al2O3 dielectric layer, as it allows the possibility of photodetectors that are spectrally selective across the visible and infrared portions of the spectrum.

The team found that their new thermal photodetector operates at record-breaking 3-dB bandwidth of 2.8 GHz, which corresponds to a rise time of just 125 picoseconds. Also important, these ultrafast speeds were achieved while maintaining competitive responsivities and noise equivalent power (NEP) as low as 96 pW/√Hz.

This is just one of the many innovative applications in the RF and optical worlds which leverage metamaterials and metasurfaces. Among many other uses, these materials enable new ways to manage and channel electromagnetic energy at these wavelengths, often to create sensors of extraordinary accuracy and precision.

The full details of this work by the Duke University team are in their paper “Metasurface-Enhanced Thermal Photodetector Operating at Gigahertz Frequencies” published in Advanced Functional Materials. While that posted paper is behind a paywall, the Duke team has thoughtfully posted an open-source version at their departmental website here.

Have you seen or used any sensors based on metamaterials or metasurfaces? What sensing challenges would you tackle if you had the needed meta resources?

Related Content

• When your sensors mislead you
• Sensors Without Wires, But Not “Wireless”
• Metadevices may fill the terahertz component gap
• Super-sensitive magnetic sensor exploits diamond defect
• Sophisticated sensors, extreme conditioning, advanced algorithms yield amazing geolocation results

The post Metasurface enables supersensitive, superfast thermal-based photodetector appeared first on EDN.

Serial communication remains the backbone of electronic communication in the automotive sector. The cost-effective LIN bus with master-slave architecture and the fast multi-host fieldbus CAN-FD (Controller Area Network) have become established in this field. The great advantage and efficiency of the applications lies in the combination of both bus systems. GÖPEL electronic has now introduced an extension for the SCANFLEX Multi Port Bus I/O Module 9305 for these interfaces, which makes the functional diversity of the SCANFLEX system available for automotive interfaces in production testing.

With the new BAC module for CAN-FD/LIN, these interfaces can now be tested for functionality during production. The Bus Access Cable (BAC) is connected to one of the five slots of the SCANFLEX Multi Port Bus I/O Module 9305 and thus connected to the SCANFLEX system. This enables access to the complex test functions of the SCANFLEX boundary scan controller. The controller then takes over the simultaneous generation and dynamic distribution of the vectors and control sequences to the interfaces.

SCANFLEX is a modular JTAG/boundary scan controller. Based on state-of-the-art multi-core processors and FPGAs, it allows users to execute test and programming technologies from Embedded JTAG Solutions. Its multifunctional architecture enables these technologies to be combined flexibly and with high performance on a single platform. SCANFLEX II has eight independent, truly parallel test access ports (TAP) for up to 100MHz. This enables the synchronized execution of embedded test, debug, and programming operations via boundary scan (IEEE1149.x), processor emulation, chip integrated instruments, or the embedded diagnostics method.

About GÖPEL electronic
GÖPEL electronic develops and manufactures innovative electrical and optical test, measurement, and inspection equipment for electronic components and printed circuit board assemblies as well as industrial and automotive electronics systems. The company is active worldwide, with its own subsidiaries as well as through distributors, and generated sales of approximately 40 million euros in 2023 with 240 employees.

The post Boundary scan in combination with automotive applications for CAN-FD and LIN bus appeared first on ELE Times.

As explained in the E series Wikipedia page: “The E series is a system of preferred numbers (also called preferred values) derived for use in electronic components. It consists of the E3, E6, E12, E24, E48, E96, and E192 series, where the number after the ‘E’ designates the quantity of logarithmic value ‘steps’ per decade. Although it is theoretically possible to produce components of any value, in practice, the need for inventory simplification has led the industry to settle on the E series for  resistors, capacitors, inductors, and zener diodes.”

Wow the engineering world with your unique design: Design Ideas Submission Guide

It’s convenient at times to have a desktop calculator that accepts a computed value x and returns the standard, commercially available value closest to it for a specified E series. Here, “closest” means that candidate value for which the absolute value of the computed error (candidate/x – 1) is the smallest.

The following GitHub link:

• https://github.com/Christopherrpaul/E-series-Calculator

hosts the files needed to create the desktop icon, which calls the application, both of which are shown in Figure 1. It also contains a README file, which details how to install the files on a Windows PC, and a User Manual.

Figure 1 The desktop icon that calls the application, which is also shown. The E3 series has been selected, and a computed value of 56 has been entered. The closest E3 series value of 47 is apparent, along with the calculated error of the selected candidate.

Selecting a different series will automatically calculate and present the nearest value and its error for that series. Pressing the <Enter> key in the Enter Value box will clear the entry so that a new one can be checked. The Enter Value numeric sequence may be followed by an exponent (e6, E-2, etc.). A single alpha character (for instance, M, k, n, or others) also may be appended. Neither is necessary, but the format of the Nearest E value will always follow that of the Enter value.

Although not needed often, this is convenient to have around with the touch of a Desktop icon. Move it elsewhere if the Desktop is not your preferred location.

Christopher Paul has worked in various engineering positions in the communications industry for over 40 years.

Related Content

• Calculate standard resistor values in Excel
• Calculator program finds closest standard-resistor values
• Programs calculate 1% and ratio-resistor pairs
• Create resistor ratios with this spreadsheet

The post A convenient desktop-accessible calculator of E-series component values appeared first on EDN.

BluGlass Ltd of Silverwater, Australia — which develops and manufactures gallium nitride (GaN) visible laser diodes based on its proprietary low-temperature, low-hydrogen remote-plasma chemical vapor deposition (RPCVD) technology for quantum, defence and biotech markets — has entered a AUS$1.3m strategic collaboration with a “Fortune 500 global mass-capacity data storage leader”...

Конференція Tech360: Policy Meets Technology kpi вт, 04/07/2026 - 12:37

Почесною відзнакою Вченої ради університету нагороджено Олександра Мохунька kpi вт, 04/07/2026 - 12:23

ACM Research Inc of Fremont, CA, USA — which develops and manufactures processing equipment for semiconductor device and wafer- and panel-level packaging (WLP) applications — has announced a new branding and organization of its product portfolio into a unified, process-based structure, referred to as the ACM Planetary Family...

IVWorks Co Ltd of Daejeon, South Korea – which was founded in 2011 and manufactures 100–200mm gallium nitride (GaN) epitaxial wafers for RF & power electronics applications – is accelerating its expansion into the GaN semiconductor market through its proprietary reGaN technology while continuing to expand its core epiwafer business across multiple advanced device platforms. Leveraging its epitaxy expertise, the firm is positioning itself as a solution provider for next-generation RF and power semiconductor applications, including aluminium nitride (AlN) high-electron-mobility transistors (HEMTs) on silicon carbide (SiC), GaN HEMT on silicon, and vertical GaN epiwafers...

Someone's gonna start a fire building one of these. submitted by /u/ThomasTTEe2 [link] [comments]

🏓 Спортивні секції для студентів kpi пн, 04/06/2026 - 21:51

it will be used to control 5 motors from a raspberry pi as well as sense a voltage drop across the resistor for current sensing and motor stall detection using an arduino nano as an ADC. It will be used to actuate fingers in a prosthetic hand for a uni project! less submitted by /u/Z3temis [link] [comments]

It may not support the latest-and-greatest cellular data tech. But in a pinch, it’ll cost-effectively still do the Internet-access trick.

In one of last month’s posts, covering cellular hotspots for maintaining broadband connectivity when premises power goes down, as well as when you’re on the road, I wrote:

Last January I’d purchased on sale from Amazon two NETGEAR LM1200 cellular broadband modems, one for teardown-to-come and the other for precisely the scenario—premises power-loss connectivity backup—that I experienced in mid-December. They aren’t as-is usable [unless you only need to have one wired-connected device online, that is], requiring tether to a router. But I have plenty of those in inventory. And had we stuck around the home more than one night I probably would have pressed the modem-plus-router combo into service, fueled by a portable power unit. But another limitation, bandwidth, was the same one that already soured me on the Surface Pro X’s integrated modem (along in the ones in my Intel-based Surface Pros, for that matter). The LM1200 “only” supports 4G LTE, which is likely why I bought them (on closeout, I suspect) for only $19.99 each a year-plus back, versus the original $49.99 MSRP.

Today, I’ll be actualizing my year-plus back teardown aspiration, as usual beginning with some outer box shots…as usual accompanied by a 0.75″ (19.1 mm) diameter U.S. penny for size comparison purposes:

Flip up the top flap:

and the first things you’ll see are our patient, underneath two slips of paper (also found here in PDF form, along with a fuller user manual). Below them:

are two cables, one for power and the other for data connectivity, along with a power adapter:

Last things first; the AC-to-DC adapter, with a USB-A output (with only notable sides shown):

and the two cables:

Now for our patient:

TS-9 connectors (plus other interesting things, such as the nano SIM slot) ‘round back, the same as with the high-end NETGEAR MR6110 cellular hotspot I showcased a month back:

and as before intended for tethering the cellular modem to an optional external antenna:

Onward:

Note the passive ventilation abundance underneath; a curious choice, given that heat rises, not sinks (and don’t get me started on the confusion inherent to the term “heatsink”), but better than nothing, I guess:

A closeup of the label reveals, among other things, the all-important FCC ID (PY320300503):

60 FCC certification record entry results. That’s a new record, at least for me!

Rubberized feet tend to hide (albeit not always, mind you) screw heads, providing pathways inside:

The typical presence pans out once again in this instance:

And we’re in. The top and bottom chassis pieces both detach:

leaving behind the PCB, along with chassis remnants around the periphery:

which also separate straightaway, this time with no additional screws to mess with:

Let’s start with the top of the PCB:

Dominating the landscape is a Quectel EC25-AF PCIe LTE Cat 4 module, rotated 180° in this photo so you can discern the topside printing right-side-up:

Below it are the four status LEDs whose illumination ends up shining out the holes at the top of the device. And above it are two Youth Electronics GS12401C LAN transformers, one each for the cellular modem’s LAN and WAN ports.

Next, those two long-and-skinny shiny metal pieces, one on each side of the PCB:

They’re, you’ve probably already guessed, the 4G cellular antennae.

Now for the other (bottom) side of the PCB:

Faraday Cages. Regular readers already know what comes next:

Nothing terribly exciting here, that is unless you’re an RF engineer:

How about the larger one?

Another 4R7 (4.7 microhenry) inductor. Plus, a Qualcomm Atheros QCA8334 four-port Gbit Ethernet switch IC, only two ports’ worth of resources which are presumably in use (for the aforementioned LAN and WAN backside ports). And scattered about the remainder of this PCB side’s real estate are clusters of test points, passives, discretes and other diminutive doodads.

And there we are! After this writeup is published and I answer any lingering reader questions, I’ll pop the Faraday Cage tops back on, reassemble the surrounding chassis and see if it still works. And speaking of questions, please do sound off with your thoughts in the comments!

—Brian Dipert is the associate editor, as well as a contributing editor, at EDN Magazine.

Related Content

• Cellular hotspots: Multi-option evaluation thoughts 
• Preemptive utilities shutdown oversight: Too much, too little, or just right?
• Verizon’s (and others’) 5G: underwhelming is putting it mildly
• The Microsoft Surface Pro X: Windows without the x(86)
• Surface Pro upgrade offers more memory plus LTE connectivity

The post Netgear’s LM1200: A 4G LTE modem, modestly funded appeared first on EDN.

🎉 День відкритих дверей КПІ Open Day kpi пн, 04/06/2026 - 10:22