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Step-Up/Step-Down DC-DC converter module. It has an input voltage of 2.8 to 22 V, an output voltage of 12 V and a maximum output of 2.5 A to 3.5 A. Pololu 4985

The module contains two 5V relays with a maximum current of 10A (250 VAC) and opto-isolated inputs, and with jumpers it is possible to select switching with high or low status. The module is equipped with screw connectors. modRL02_ISO

6-channel transmitter (RC apparatus) 2.4 GHz Flysky FS-i6 with LCD display included with FS-IA6 receiver with telemetry support. Power supply 6 V (4 x AA batteries), throttle on the right (left-handed version). Flysky FS-i6 Mode 1

The module contains four 5V relays with a maximum current of 10A (250 VAC) and opto-isolated inputs, and with jumpers it is possible to select switching with high or low status. The module is equipped with screw connectors. modRL04_ISO

The module contains eight 5V relays with a maximum current of 10A (250 VAC) and opto-isolated inputs, and with jumpers it is possible to select high or low switching. The module is equipped with screw connectors. modRL08_ISO

A prototype contact plate, 176 x 46 x 8 mm, has 700 points. PPS0700

The battery tester is a compact device that allows you to check in a very simple and quick way whether the batteries or rechargeable batteries we use are functional. Our devices require good batteries or accumulators and we are often not sure if our equipment has the right power supply to withstand, for example, during a trip or celebration. Nothing easier, you can check it using a tester.

Module with I2C driver based on the HT16K33 chip. Dedicated to 7-segment displays. It is equipped with STEMMA QT connectors. Adafruit 1271

The FM tuner module with the Si4703 chip allows you to build an FM radio with RDS support. It uses the I2C bus for communication. WRL-12938

C1-1 soldering tip with a 1.5 mm cone tip, designed for stations ZD-98, ZD-99, ZD-200C

16 MHz chord resonator in a housing with dimensions of 5.0 x 3.2 mm, with two pins.

Module with Hall sensor, allows for magnetic field detection, can be used to measure angle of rotation, displacement, mechanical vibrations, etc. The module has a connector in accordance with the Gravity standard. DFRobot SEN0185

The board has a class D amplifier onboard that can drive 2 channels of 4-8 ohm impedance speakers at 20W each. Adafruit 1752

Compact stepper motor controller with the TMC2226 system with an operating voltage from 4.75 to 29 V. It offers smooth, quiet operation, high efficiency, various operating modes and easy configuration. It is controlled via the STEP/DIR interface and is an ideal solution for 3D printers and similar applications. BIGTREETECH TMC2226 V1.0

Compact stepper motor controller with the TMC2208 system with an operating voltage from 4.75 to 36 V. It offers smooth, quiet operation, high efficiency, various operating modes and easy configuration. It is controlled via the STEP/DIR interface and is an ideal solution for 3D printers and similar applications. BIGTREETECH TMC2208 V3.0

A compact stepper motor controller with the TMC2209 system with an operating voltage from 4.75 to 28 V. It offers smooth, quiet operation, high efficiency, various operating modes and easy configuration. It is controlled via the STEP/DIR interface and is an ideal solution for 3D printers and similar applications. BIGTREETECH TMC2209 V1.3

Adapter for power supply with 5.5 x 2.1 mm input and 4.0 x 1.7 mm output

D-SUB signal socket (female, angled). It has 15 pins in the system of 3 rows of 5 pins (VGA), the line spacing is 1.98mm. The socket is blue, mounted for printing

Classic joystick (control stick) with built-in 4 microswitches, which can detect 8 directions of movement in the XY plane. It is equipped with an ergonomic handle in the form of a blue ball, it will be perfect as a control element in typical arcade games