opponix

The 30cm Servo Extension Lead Cable is designed to extend the connection between RC servo motors, receivers, electronic speed controllers (ESCs), and compatible control boards. Featuring a three-pin male-to-female connector arrangement, it allows flexible cable routing when the original servo wire is too short. Compatible with standard Futaba- and JR-style...

The 3D Printer 42 Stepper Motor Driver Expansion Board is designed to simplify the connection and control of 42-type stepper motors in 3D printers, CNC machines, Arduino projects, and DIY electronics applications. It supports compatible A4988 and DRV8825 stepper motor driver modules, providing convenient connections for motor power and digital...

A 2 Channel 24V Relay Module designed for controlling two independent electrical loads using a control signal. It is suitable for industrial automation, Arduino and microcontroller projects, IoT applications, electrical switching, and DIY electronics. The module provides reliable switching and allows multiple devices to be controlled separately.

  The 4-Channel PC817 Optocoupler Voltage Isolation Module is designed to provide electrical signal isolation between input and output circuits. It uses four PC817 optocouplers to transmit control signals between electrically isolated circuits, helping protect sensitive microcontrollers and control boards from electrical interference. This module is suitable for Arduino, ESP32,...

The 4-Slot 18650 Battery Holder is designed to accommodate four standard 18650 rechargeable lithium-ion batteries in a compact plastic housing. Featuring an 8-pin connection interface, it is suitable for PCB mounting and electronic projects requiring a flexible battery connection arrangement. The holder supports battery configurations such as series or parallel...

The 4-Way Infrared Tracking Sensor Module is designed for line-following and obstacle-detection applications in robotic cars, smart robots, and Arduino-based projects. It uses four infrared sensor channels to detect black and white surfaces, allowing robots to accurately follow transmission lines or paths and respond to obstacles. The module is easy...

The 4-Wheel Aluminium Robotic Car Chassis Kit is a sturdy and versatile 4WD robot platform designed for building DIY robotic cars, autonomous vehicles, and educational robotics projects. Its aluminium alloy chassis provides a strong yet lightweight foundation for mounting controllers, motor drivers, sensors, batteries, and other electronic modules. Similar 4WD...

Perfect for rapid prototyping and circuit testing, this 400-hole solderless breadboard offers reliable connections without permanent soldering. Ideal for students, hobbyists, and electronics enthusiasts working on Arduino, microcontroller, and DIY electronics projects.Features a standard layout with clearly marked power and ground rails. High-quality construction ensures consistent contact and durability through...

The 4×4 Matrix Keypad is a compact input device designed for Arduino, ESP8266, ESP32, and other microcontroller-based electronic projects. It features 16 keys arranged in four rows and four columns, allowing users to enter numbers, characters, and commands for a wide range of applications. Using a row-and-column matrix interface, the...

5 Way Flame Sensor Module – Digital Signal Dual Output Fire Detection Sensor The 5-Way Flame Sensor Module is a multi-channel infrared flame detection module designed to detect flame and fire sources from multiple directions. It uses five independent flame-sensing elements to provide wider detection coverage and is suitable for...

5V 1W Polycrystalline Solar Panel – Epoxy Resin DIY Solar Power Module Harness solar energy for your DIY electronics and renewable-energy projects with this 5V 0.18W Polycrystalline Solar Panel. Designed with a durable epoxy resin encapsulation, the panel offers a compact and lightweight solution for converting sunlight into usable electrical...

5V 1W Polycrystalline Solar Panel – Epoxy Resin DIY Solar Power Module Harness solar energy for your DIY electronics and renewable-energy projects with this 5V 0.5W Polycrystalline Solar Panel. Designed with a durable epoxy resin encapsulation, the panel offers a compact and lightweight solution for converting sunlight into usable electrical...