Cable locator: tracing cables in high-density conditions

How does one determine the current direction and strength of the probing signal? Which techniques allow the most accurate determination of the cable's depth? How does one consider the influence that induced signals have on neighboring cables?

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Multifunctional dynamic bicycle light

Do you want dynamic LED turn signals for your bicycle? Do you also want a dynamic brake light? (in part two) Or maybe you want an emergency signal? (in part two) And all that WITHOUT a microcontroller? (only logic circuits)

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HDMI splitter with built-in extension

What is the purpose of this type of device? There are cases when it is necessary to multiply the signal from one video source (TV-tuner, PC, video recorder) to several displays.

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Cable locator: how the receiver (detector) works

What makes up a cable locator receiver? Which sensors are used in receivers? What is the purpose of the different types of sensors and various combinations of sensors used? How does one correctly orient the receiver to the cable being traced?

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Effect of reducing the LED strip supply voltage on the light emitted

How quickly does the illumination reduce when the supply voltage decreases? How does the illumination decrease due to voltage loss in a long LED strip?

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Mounting methods for HDMI extenders

Are you planning to hide this device on a table behind an NVR, TV, monitor, etc.? Or will the transmitter and receiver be placed in plain sight, e.g. on a wall, under a tabletop, or on a surface in some other way?

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Cable Line Tracing: Choosing the Operation Frequency. Passive Location

How does a generator's signal frequency affect the range of the cable location signal? What cable identification frequency is more efficiently? Why can cable identification at low frequency be more reliable? And when is passive location used?

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LED strip / lights connectors and maximum currents

What happens if the installer chooses the wrong connector for the LED strip or lights? What happens when a connector passes a high current? What is more dangerous - a thin wire or a low-quality connector?

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Compact HDMI extender over a twisted pair network cable

There aren't many consumers who pay much attention to design when choosing an HDMI extender over a twisted pair network cable. But it can be quite important in some cases. What if you choose a compact type of extender?

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How does a cable locator work?

This post contains a brief introduction to cable location principles. What does a typical locator consist of? Active/passive location methods. Cable connection methods.

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Thermal measurements of LED strips. Conclusions

How does the power consumption affect the LED chip heating? Can I mount the LED strip on the chipboard directly without the aluminum profile? Is COB technology really more efficient at dissipating heat from LED chips than traditional SMD technology?

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HDMI Loop Out. An additional feature of HDMI extenders for twisted pair network cable.

Buyers of HDMI extenders often ignore an additional feature: the HDMI pass-through output of the transmitter. I will look at what it is, where it can be useful, and whether it is worth overpaying for it.

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Electrical wiring tracing and identification

Active and passive modes of cable routing. Three ways of active tracing of power and telecommunication cables.

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Why is a 24-volt LED strip better than a 12-volt power supply? Why you can’t connect long LED strips to the power supply?

Experiment/study LED strip internal conductors resistance. Voltage reduction in long strips. Influence of LED strips inner conductors resistance on the segments power supply. How to connect long LED strips correctly?

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Additional features of twisted-pair HDMI extenders: Transmitting the infrared signal

The Lenkeng LKV372AE-4.0 is a simple twisted-pair HDMI extender that has the additional function of sending the IR signal back. This means that i send an HDMI signal from the transmitter to the receiver and i can send an IR signal back.

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Review twisted pair HDMI extender Lenkeng LKV375N

I had another twisted-pair HDMI extender up to 230 feet for testing - Lenkeng LKV375N. This is an inexpensive extender that works on HDBaseT technology.

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Review twisted pair HDMI extender Lenkeng LKV372AE

The Lenkeng LKV372AE extender is considered basic in Lenkeng's lineup. It transmits video with a maximum resolution of 1080p at 60 Hz for a distance of up to 230 feet over a CAT6 cable.

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Convection heat transfer from the LED strip

How does air dissipate heat from the LED strip? How much air cools the LED strip?

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Heating LED strips on aluminum profile in chipboard

Full simulation of led lights under the cabinet How hot are the LED strips on the aluminum profile? How hot are the LED strips on an aluminum profile in the chipboard?

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Heating LED strips on chipboard (cabinet simulation)

Heating of different types of led strips on chipboard. How hot are the LED strips on chipboard without an aluminum profile? How hot are these LED strips on chipboard with an additional diffuser?

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