OEM

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.

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.

This compact Class D stereo audio amplifier module is based on the high-performance TPA3113D2 chip. The device offers an output power of 2x6W and is compatible with speakers with an impedance of 4–8 Ω. A wide supply voltage range of 12–26 V DC and high efficiency of 90% ensure energy-efficient and stable operation.

Built-in short-circuit and thermal protection ensure safe operation. The module is suitable for use in portable speakers, home audio systems, and DIY projects with Arduino, Raspberry Pi, or ESP32.

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 high-quality antenna adapter with a U.FL (IPX/IPEX) connector and an SMA-F female connector. It uses a 10 cm RG178 cable with a 50 Ohm impedance, ensuring a stable signal in Wi-Fi, LoRa, GSM, and Bluetooth systems.

The product allows for easy routing of the antenna outside the enclosure. It is compatible with popular platforms such as ESP8266, ESP32, Arduino, and Raspberry Pi. Its compact size and convenient panel mounting make it ideal for IoT projects and telemetry systems.

High-quality RF pigtail with a U.FL (IPX/IPEX) plug and an SMA jack. It uses a 15-cm-long RG178 coaxial cable with an impedance of 50 ohms. It ensures a stable connection and low signal loss. This product is ideal for routing an antenna connector outside the device enclosure. It works perfectly with popular modules such as ESP32, ESP8266, Arduino, and Raspberry Pi. Essential for wireless communication systems, Wi-Fi networks, Bluetooth, and IoT projects.

This professional RF adapter features a UC1 socket and an SMA male plug, enabling quick connector adaptation in radio communication systems. Gold-plated contacts and a Teflon insulator ensure a secure connection and stable signal transmission. This compact 28.5 mm adapter is used in amateur radio, SDR receivers, IoT systems, and for connecting antennas to ESP32, Arduino, and Raspberry Pi modules without the need for soldering.

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.