April 2025

 Violation of the battery operating mode (due to improper operation of the vehicle relay regulator, or long-term storage) almost always lead...

 the idea of switching lamps using a regular variable resistor as a control is very good, but the above designs are based on poly comparator...

 The regulator is designed to control the brightness of a portable luminaire powered by a car on-board network made from a car headlight. Th...

 A metal detector detects a water pipe under a wall layer up to 150 mm thick, a sewer pipe - up to 250-300 mm, a modern five-ruble coin at a...

 The metal detector, the diagram of which is shown in the figure, is made on one chip. It consists of two identical LC generators and a dete...

 Metal detector on Arduino The best time for a metal search is the earliest spring, when the snow has already melted, the soil has thawed, b...

 Here is an extremely simple, but deserving of the right to exist metal detector, for the manufacture of which only one cheap integrated cir...

 It's been a long time since we had materials about metal detectors, especially of the simplest type, without the use of expensive micro...

  Today we will analyze the operation of the simplest metal detector, in which the signal is processed by a smartphone. Therefore, it can be...

  Pulse Metal Detector Here is a simple pulse metal detector based on the A1015, JRC4585 and NE555. Instead of the IRF740, after testing, th...

 Miniature metal detectors presented in this review cannot boast of high sensitivity, but their assembly will be an exciting experience for ...