OEM

The compact WeMOS D1 Mini WiFi module with the ESP8266-12F chip is a versatile solution for IoT projects. The board has 4MB Flash memory, a CH340 converter, and a microUSB connector for easy programming in Arduino IDE.

The microcontroller offers a rich set of pins, including 11 GPIO pins, an ADC input, and support for UART, I2C, SPI, and 1-Wire interfaces. The module supports Wi-Fi connectivity, making it an excellent choice for building smart sockets, switches, and home automation systems.

Compact white 0.96 inch OLED display with 128x64 pixel resolution. Equipped with the reliable SSD1306 controller, it supports I2C and SPI interfaces. The module is fully compatible with popular platforms such as Arduino, ESP8266, ESP32, and Raspberry Pi. Powered at 3-5V, it offers high contrast and low power consumption. Ideal for home automation, weather stations, IoT projects, and wearable electronics.

The high-performance WIFI ESP8266 NodeMCU V3 module is an ideal solution for IoT projects and Smart Home systems. The board offers 10 GPIO pins, I2C and 1-Wire support, a microUSB connector, and a built-in PCB antenna. The integrated CH340 converter simplifies programming in Arduino IDE. The device provides stable Wi-Fi 2.4 GHz communication and 4 MB of flash memory. It works well in building automation, weather stations, and wireless sensors.

The set includes 65 colourful male-to-male jumper wires with lengths from 12 cm to 24 cm. The cables have a standard 2.45 mm pitch and are used for quick connection of breadboards and electronic modules without soldering. The jumpers are fully compatible with popular platforms such as Arduino, Raspberry Pi and ESP32. Different colours and lengths make it easy to identify connections and keep things organised when prototyping circuits and creating IoT projects.

Durable 18650 1S 3.7V battery holder - a reliable way to power electronic circuits. It has factory-installed 15 cm leads and a practical screw mounting hole for stable mounting and fast hook-up.

This compact battery holder is ideal for powering microcontrollers, including Arduino and Raspberry Pi. It works well for custom power modules, power banks, RC models, and standalone LED lighting systems.

The XH-M602 module is a universal battery charging controller powered by 220V. The device automatically manages the charging process by turning the external charger on and off, which effectively protects the cells from overcharging. It supports a wide operating voltage range from 0V to 120V with high precision. The module works with Li-Po, Li-Fe, Li-Ion, and gel batteries. The compact design is ideal for backup power systems and electronics projects using Arduino or Raspberry Pi.

Efficient step-down buck converter with the XL4015 supports input voltage 4 - 38 V and output 1.25 - 35 V. The module enables smooth voltage and current regulation up to 5 A using built-in potentiometers. The device achieves efficiency up to 95% and includes essential thermal protection. The converter is ideal for powering electronic circuits, charging rechargeable batteries, and building workshop power supplies. Input voltage must be at least 1.5 V higher than the output voltage.

High-efficiency buck voltage converter based on the XL4015 IC. The Step-Down module accepts input voltage 5.5 - 36V DC and allows smooth output voltage adjustment in the range 1.25 - 32V DC. Maximum output current is 5A. The device supports CC/CV mode for safe battery charging and LED lighting. The converter offers high efficiency of 95% and built-in short-circuit and thermal protection. Ideal for bench power supplies and microcontroller projects.

A high-performance DC-DC step-down voltage converter based on the XL4016 IC. It allows smooth adjustment of the output voltage from 1.25 V to 35 V with an input of 4 - 38 V. The module offers a maximum power of 200 W, current up to 8 A, and high efficiency of ~90%. It is well suited for powering Arduino, Raspberry Pi, LED systems, and solar panel installations. Precise multi-turn potentiometers ensure full control of operating parameters in a compact package.

ZB2L3 tester is a precise module for measuring capacity of 18650 cells and Li-Ion, Ni-Mh, and Pb batteries. The device is powered by 4.5V - 6V via a micro USB port and supports batteries under test up to 15V. Maximum measured capacity is 9999Ah with 1% accuracy.

The tool works well for verifying recovered cells and diagnosing power packs. The kit includes two 7.5 Ohm 5W load resistors, enabling quick and trouble-free start of accurate discharge tests.