OEM

ST-Link V2 Programmer is a versatile tool for programming and debugging STM32 and STM8 microcontrollers based on the ARM Cortex architecture. The device provides stable communication via SWD and SWIM interfaces, making it ideal for prototyping and testing embedded systems.

The hardware works with popular development environments such as ST-LINK Utility and KEIL RVMDK. The kit includes 4 female-to-female jumper wires for easier connection. The programmer supplies power to the target at 3.3V and 50mA.

This compact DC-DC Step-Down voltage converter is a miniature buck module. It accepts an input voltage of 4-18 V and provides adjustable output voltage of 0.85-17.5 V via the potentiometer, or a fixed voltage after soldering the jumper. The device delivers a continuous output current of 2.1 A at high efficiency of 95%.

Thanks to its small size of 20×10×5 mm, the module is ideal for powering electronic projects. Main uses include powering logic circuits and popular microcontrollers such as Arduino, ESP8266, ESP32, and Raspberry Pi.

A compact DRV8833 motor driver enables independent control of two DC motors or one stepper motor. The IC supports a supply voltage of 2.7V - 10.8V and provides 1.5A continuous current per channel. The module has integrated thermal and overcurrent protection and does not require a heatsink. The driver uses PWM modulation and works with Arduino, ESP32, and Raspberry Pi. It is suited to robotics, radio-controlled vehicles, and small DIY projects.

This compact SX1308 DC-DC step-up converter boosts the input voltage from 2-24V to 2-28V at the output. The module delivers a continuous current of up to 2A and offers high efficiency of at least 95%. Smooth voltage adjustment is provided by a built-in potentiometer. Its small footprint makes it ideal for portable electronic projects, powering modules from lower-voltage cells, and building mobile power supplies. It is an excellent replacement for popular LM2577 and XL6009 modules.

The kit includes a type K thermocouple probe and a MAX6675 module for precise measurement from 0°C to 800°C. The device is powered by 3.3 V - 5 V and uses the SPI interface, making integration with Arduino or Raspberry Pi easy. The chip features a 12-bit ADC converter and cold junction compensation.

The product is ideal for soldering ovens, industrial processes, BGA stations, and monitoring internal combustion engines. The probe is equipped with a universal M6 thread.

An advanced tester and charger capable of handling up to four 18650 cells simultaneously. The device, powered by a convenient USB-C port, enables precise measurement of the capacity and internal resistance of rechargeable batteries. The module offers three operating modes: automatic, discharge, and charge. Built-in active cooling ensures stability during long-term testing. The product is ideal for accurately verifying the condition of batteries, safely charging them, and selecting and pairing cells for professional battery pack construction.

A compact Li-Ion TP4056 cell charger with a USB-C connector is a module for safely charging rechargeable batteries, including popular 18650 cells. The device delivers a maximum charging current of 1 A at an input voltage of 4.5 V - 5.5 V. Integrated protection prevents the cells from discharging below 2.5 V. The module has LED indicators that show operating status. It is well suited to portable electronics projects, DIY power banks, and backup power, and supports batteries that do not include a factory protection circuit.

TP4056 1A charger is a universal module for charging Li-Ion and Li-Pol batteries at 3.7 V. It features a Micro-USB connector and built-in protection against excessive discharge and overload. It is well suited to charging popular 18650 cells in electronic projects, building portable power supplies, or emergency systems.

The circuit’s input voltage is 4.5 - 5.5 V, and the maximum charging current is 1 A. Its compact size makes mounting easy, while integrated LEDs continuously indicate the current charging status.

The compact capacitive touch sensor TTP223 is an excellent replacement for traditional mechanical buttons. The module is fully compatible with platforms such as Arduino and Raspberry Pi. The device operates at a supply voltage of 2V - 5.5V and has a very fast response time of about 60ms.

Thanks to its small size and built-in LED that indicates operating status, the sensor is ideal for home automation systems, control panels, and lighting switches. No mechanical wear ensures long, trouble-free operation of the module.

The TTP223B module is a modern capacitive touch sensor that replaces traditional mechanical buttons. The device operates from 2 - 5.5 V and offers a fast 60 ms response time. It includes an indicator LED and adjustable sensitivity. The sensor is compatible with Arduino, Raspberry Pi, and ESP32. It is ideal for hidden control panels, interactive toys, and modern interfaces in smart home systems.

A compact step-down converter that lowers voltage from 6V - 24V to a stable 5V. The module includes a Type A USB connector and a status LED. The circuit delivers a maximum output current of 3A, with a continuous operating current of 2.1A.

Thanks to its miniature size, the module is ideal for projects with limited space. The converter is well suited to powering microcontrollers such as Arduino, Raspberry Pi, or ESP32. It is useful for DIY chargers and for powering circuits in robotics and modelling.

The compact USB CP2102 converter is a reliable RS232 TTL UART communication interface. It has a USB A connector and TX, RX, DTR, GND, and VCC routed to a pin header. The device supports a 5V supply voltage, while the logic level of the signals is 3.3V. Three built-in LED indicators show power and data transmission. The module works excellently for microcontroller programming, such as ESP8266, ESP32, or Arduino, as well as for serial communication with GPS, GSM modules, and router repair.

USB Tester V20 KEWEISI is a universal voltage and current meter for diagnosing charging issues. The device measures voltage in the range 4 - 20 V DC and current up to 3 A. It has a clear, backlit LCD display showing capacity and charging time.

The compact meter lets you check power bank capacity, charger performance, and cable quality. Equipped with a RESET button, it is simple to use and works as soon as it is connected.

USB-A 2.0 4-pin male plug on PCB is a versatile solution for projects with Arduino, ESP32, and Raspberry Pi. The module has pins at the standard 2.54 mm pitch, which simplifies mounting on breadboards. It provides access to the 5V supply line, ground, and data lines. It is ideal for powering your own circuits, prototyping devices, building custom adapters, and repairing cables. Two mounting holes ensure stable mounting in DIY enclosures.

A compact USB-C to USB-A 3.0 adapter for connecting traditional devices to modern ports. With USB OTG and USB 3.0 support, it delivers fast data transfer and efficient charging for mobile devices. The black adapter is only 20 mm long and highly portable. It works well with USB flash drives, mice, keyboards, and gamepads. No driver installation is required; it works with any hardware that supports host mode, offering full versatility for everyday use.

The advanced Type-C fast-charging trigger module precisely regulates the voltage from power supplies, supporting up to 100W of power and 5A of current. The device supports the PD 3.0, QC 3.0, FCP, and AFC protocols. It features a USB-C input and an output with a stable screw terminal.

The module offers voltages of 5V, 9V, 12V, 15V, and 20V, indicated by LED indicators. It is ideal for powering universal prototypes, Raspberry Pi, Arduino, and for rigorous testing of chargers. It reduces the need for multiple bench power supplies.