4x4 Matrix Keyboard Keypad Module The 4x4 Matrix Keyboard Keypad Module is a reliable and easy-to-use input device designed for microcontroller-based projects and electronic applications. With 16 tactile push buttons arranged in a 4x4 grid, it allows efficient data entry for projects like calculators, security systems, menu navigation, and custom interfaces. The keypad is built with high-quality plastic keys and a durable printed circuit board, ensuring long-lasting performance even under regular use. This module features a standard pin configuration for seamless integration with platforms like Arduino, Raspberry Pi, and other microcontrollers. Its compact design and flexible connectivity make it an excellent choice for prototyping and development environments. Whether you're creating an access control system, a DIY control panel, or an educational electronics project, this keypad offers precise response and reliable performance. Features: 16-button matrix layout (4 rows × 4 columns) for efficient input control. Durable plastic keys designed for long service life and consistent response. Compatible with Arduino, Raspberry Pi, and most microcontroller platforms. Compact and lightweight design for easy mounting and integration. Standard pin layout simplifies wiring and coding. Suitable for use in calculators, password entry systems, and menu navigation. Supports OEM customization and sample service for development needs.

350PCS Breadboard Assorted Copper Jumper Wire Kit The 350PCS Breadboard Jumper Wire Kit is a starter-friendly and essential set for electronics learners, hobbyists, and rapid prototyping tasks. With multiple wire lengths included, it helps you build clean and reliable breadboard circuits without messy overlapping wires. Each jumper is made from copper wire for excellent conductivity and is pre-shaped at right angles to ensure smooth insertion and organized circuit layouts. The compact storage box keeps all wires neatly arranged. Perfect for quick experimentation, sensor interfacing, and microcontroller testing, this jumper set delivers durability and convenience for everyday electronics projects. The rigid, unbreakable wires make it simple to plug and unplug without deformation. Features: Includes 350 pre-formed jumper wires in assorted lengths. High-conductivity copper wires ensure reliable performance. Right-angle pre-bent design makes insertion effortless. Rigid and durable wires ideal for repeated use. Packed in a compact storage box for better organization. Best suited for breadboard setups, DIY kits, and circuits.

SmartElex ESP32 WROOM_C Development Board – WiFi & Bluetooth Microcontroller Module The SmartElex ESP32 WROOM_C Development Board is a powerful and compact solution for all your IoT and embedded projects. Built around the reliable ESP32 WROOM_C module, this board combines high performance with built-in WiFi and Bluetooth connectivity allowing you to create smart, connected devices with ease. This WiFi and Bluetooth development board features a dual-core processor, making it capable of handling multiple tasks at once. Whether you’re working on a home automation system, sensor network, or a DIY robotics project, this ESP32 microcontroller board delivers speed, flexibility, and efficiency. Designed for makers, students, and professionals, this WiFi and Bluetooth MCU module is easy to program and compatible with popular platforms like Arduino IDE and MicroPython. It’s an ideal choice for anyone looking to build or experiment with modern wireless projects. Features: Powerful Dual-Core Processor: Built with the high-performance ESP32 WROOM_C module for fast and efficient processing. WiFi and Bluetooth Connectivity: Enables seamless wireless communication for IoT, automation, and smart device projects. Versatile Development Board: Works with both Arduino IDE and MicroPython, making it easy for beginners and experts alike. Multiple I/O Pins: Offers a wide range of digital and analog pins to connect sensors, motors, and other peripherals. Compact and Durable Design: Lightweight yet sturdy, ideal for embedding in prototypes or final product builds. Low Power Consumption: Optimized for energy efficiency, making it perfect for portable and battery-powered projects.

SmartElex ESP32-C6-WROOM-1 WiFi + BLE + Zigbee DevKit Development Board The SmartElex ESP32-C6 Dev Kit is a high-performance development board powered by the ESP32-C6-WROOM-1 module, designed to simplify the creation of IoT, automation, and smart home projects. Featuring Wi-Fi, Bluetooth Low Energy (BLE), and Zigbee connectivity, this board delivers reliable wireless communication for a wide range of applications - from connected appliances to industrial systems. Built on a RISC-V processor, this ESP32 dev kit offers excellent processing efficiency, low power consumption, and compatibility with multiple interfaces including UART, SPI, I2C, and I2S. With up to 23 GPIOs, 4MB SPI flash, and built-in debugging support, it’s perfect for both beginners and professionals developing scalable, smart, and connected devices. Features: Built around the ESP32-C6-WROOM-1 module with RISC-V core Dual wireless connectivity: Wi-Fi (2.4GHz) + Bluetooth 5 Low Energy Supports Zigbee 3.0 and Thread 1.x for advanced IoT communication 4MB external SPI flash for efficient data storage Up to 23 GPIOs for flexible interfacing with sensors and peripherals USB Serial/JTAG controller for easy debugging and programming Compatible with Arduino and ESP-IDF development environments

SmartElex LoRa Module Ra- 02 SX1278 433Mhz Wireless Transmission Breakout Board The SmartElex LoRa Module Ra-02 SX1278 433MHz is a powerful wireless transmission breakout board built around SEMTECH’s advanced LoRa SX1278 transceiver chip. Utilizing LoRa spread spectrum technology, it delivers an impressive communication range of up to 10,000 meters while maintaining excellent resistance to interference. Designed for efficiency, the module offers ultra-low power consumption with air wake-up functionality, making it ideal for battery-powered IoT systems. The LoRa Ra-02 module combines high sensitivity (-148 dBm) and a robust +20 dBm output power, ensuring long-distance, reliable data transmission. Perfect for smart home networks, remote meter reading, and security monitoring systems, this module provides an exceptional balance of range, stability, and energy efficiency. Features: The technology of LoRaTM Spread Spectrum modulation Constant RF power output at a voltage change of +20dBm-100mW SPI half-duplex communication FSK, GFSK, MSK, GMSK, LoRaTM, and OOK modulation modes are supported. CAD mode, extremely fast AFC, and automatic RF signal recognition CRC-capable packet engine up to 256 bytes Dual-row stamp-hole patch package with a small footprint Protected housing Antenna Patch Connection Diagram: LoRa Transmitter: LoRa Receiver:

SmartElex RLS-08 Line Sensor Array with 8-Channel Analog & Digital Line Tracking The SmartElex RLS-08 Line Sensor Array is designed for building accurate and efficient line follower robots. It features 8 IR LED and phototransistor pairs that detect lines and edges with precision. Each sensor provides both analog and digital outputs, along with adjustable sensitivity via potentiometers, giving you better control for various lighting and surface conditions. This line tracking sensor uses high-quality TCRT5000 reflectance sensors, making it suitable not only for line-following applications but also as a general-purpose proximity or reflectance sensor. The LEDs can be turned off using a MOSFET switch to save power when not in use. Compact, reliable, and easy to interface, it’s perfect for students, hobbyists, and robotic projects. Features: Equipped with 8 IR LED and phototransistor pairs for precise line detection. Supports both analog and digital output for flexible operation. Adjustable sensitivity for each sensor using a potentiometer. Evenly spaced sensors at 15mm intervals for accurate line tracking. Uses efficient TCRT5000 sensors for high reliability and performance. Includes power-saving LED control through a MOSFET switch. Easy to mount and directly connectable to most microcontrollers.

SmartElex ESP32-WROOM-32D-N8 WiFi + BLE DevKit Development Board The SmartElex ESP32-WROOM-32D-N8 WiFi + BLE DevKit is a high-performance ESP32 development board designed for both low-power and high-demand IoT applications. Built around the powerful ESP32 module, it features dual-core Xtensa processors that can be independently controlled and clocked between 80 MHz to 240 MHz for maximum flexibility. This ESP32 DevKit integrates advanced connectivity options like Wi-Fi and Bluetooth (BLE), making it perfect for smart devices, sensor networks, and IoT projects. It includes a wide range of peripherals such as touch sensors, UART, I²C, SPI, SD card, and Ethernet interfaces for enhanced functionality. With ultra-low power consumption, high data rates up to 150 Mbps, and robust wireless range, the SmartElex ESP32-WROOM-32D-N8 stands out as an efficient and reliable solution for developers and hobbyists building connected systems. Applications: Universal low-power IoT sensor hub. Home automation. Universal IoT recorder with low power consumption. Mesh networks. The camera's video feed is streaming. Wireless control for industrial applications. OTT TV box or set-top box device. Baby monitor. Smart socket. Sensor networks. Wi-Fi toys include counters, toys, and anti-lost devices. Wearable electronic products. Wi-Fi voice recognition gadget. Wi-Fi location-aware devices. Features: SRAM memory of 520 KB is integrated. Bluetooth and Wi-Fi hybrid. High level of integration. Extremely low-power management. 8 MB Flash memory. Antenna on the printed circuit board.

SmartElex ESP32-WROOM-32E DevKit with Headers The SmartElex ESP32-WROOM-32E DevKit with Headers is a high-performance development board designed for building advanced IoT and wireless applications. Powered by the ESP32-WROOM-32E module, it integrates Wi-Fi, Bluetooth, and Bluetooth LE, making it perfect for a wide range of use cases — from low-power sensor networks to high-demand tasks such as audio processing, voice encoding, and music streaming. This ESP32 DevKit includes a PCB antenna for stable connectivity and ensures seamless integration into your embedded systems, enabling developers to quickly prototype and deploy innovative smart devices. Features: High-Performance Processor: Equipped with ESP32-D0WD-V3 or ESP32-D0WDR2-V3 SoC featuring Xtensa dual-core 32-bit LX6 microprocessor running up to 240 MHz for powerful and efficient performance. Ample On-Chip Memory: Includes 448 KB ROM, 520 KB SRAM, and 16 KB RTC SRAM; the ESP32-D0WDR2-V3 variant also integrates 2 MB PSRAM for enhanced multitasking and data handling. Advanced Wi-Fi Connectivity: Supports 802.11b/g/n Wi-Fi standards with speeds up to 150 Mbps, A-MPDU/A-MSDU aggregation, and 0.4 µs guard interval for reliable and high-speed wireless communication. Integrated Bluetooth Functionality: Features Bluetooth v4.2 BR/EDR and BLE with Class 1, 2, and 3 transmitters, supporting AFH, CVSD, and SBC codecs for seamless device communication. Rich Peripheral Interfaces: Offers multiple interfaces including UART, SPI, I2C, I2S, SD card, SDIO, PWM (LED/Motor), IR, ADC, DAC, TWAI, pulse counter, capacitive touch sensors, and GPIOs—ideal for diverse IoT applications. Reliable Operating Conditions: Operates efficiently within a voltage range of 3.0V to 3.6V and temperature range of -40°C to +85°C, ensuring stability in harsh environments.

SmartElex RLS-06 Analog & Digital 6 IR Line Sensor Array with Potentiometer The SmartElex RLS-06 Analog & Digital 6 IR Line Sensor Array with Potentiometer is a highly reliable solution for building line-following robots and reflective surface detection systems. Featuring six pairs of IR LEDs and phototransistors, this IR sensor array delivers both analog and digital sensor outputs for flexible performance. Each sensor’s sensitivity can be fine-tuned using the onboard potentiometer, ensuring accurate readings under varying surface conditions. Built around the TCRT5000 reflectance sensor, it offers stable detection of dark and light lines or nearby objects. The module’s MOSFET-controlled LED design helps minimize power consumption, while its dual-stage resistors enable operation at both 5V and 3.3V. Compact, efficient, and precise — the SmartElex RLS-06 is ideal for robotics, automation, and DIY electronics applications. Schematic Diagram: Features: Potentiometer for adjusting the sensitivity of individual sensors. The module serves as a suitable carrier for six evenly spaced pairs of IR emitter and receiver. Uses six sensors for the finest resolution. Very useful in developing rapid line following and grid traversing robots. Comes with simple digital outputs that may be connected directly to microcontrollers. The array contains mounting holes of 3mm diameter for convenient installation.

Dual PS2 Game Joystick Button Module Compatible with UNO R3 The Dual PS2 Game Joystick Button Module is designed for makers, students, and hobbyists who want smooth and precise control in their Arduino projects. Featuring two independent PS2-style joysticks, each capable of detecting X- and Y-axis movement, this module gives you accurate analog input for robotics, gaming simulations, RC applications, and other interactive builds. Each joystick also includes a built-in push-button, allowing you to add multiple levels of control without additional hardware. This dual-channel joystick module is easy to connect with Arduino boards such as UNO, Mega, and other microcontrollers. With simple pin connections for analog and digital signals, it allows rapid prototyping and effortless integration into DIY electronics projects. Whether you're creating a robot controller, a game console interface, or experimenting with human–machine input, this module offers reliable performance in a compact form factor. Features: Dual-axis PS2-style joystick module with smooth control across both X and Y directions. Includes built-in push-buttons on each joystick for additional digital input functionality. Easy interfacing with Arduino boards through simple VCC, GND, VRX, VRY, and SW pins. Wide 5V DC working voltage and stable analog output suitable for multiple DIY projects. Compact and durable construction for long-term use in robotics, gaming, and control systems. Applications: Gaming-related DIY projects Robot control mechanisms Remote control systems Interactive projects requiring precise analog input Custom Arduino-based controllers Pin Out: VCC – 5V supply GND – Ground VRX  – Analog voltage outputs for the X axes VRY – analog voltage outputs for the Y axes SW – switch output for the push-button

840PCS Breadboard Jumper Wire 14 Assorted Lengths Kit This 840PCS Breadboard Jumper Wire Kit is designed for makers, students, and electronics hobbyists who frequently build and test circuits on breadboards or PCB prototypes. It includes 14 different wire lengths, each pre-formed at right angles for smooth and secure insertion. With stiff, high-quality copper wires and clean cut ends, these jumpers ensure strong conductivity and neat routing when constructing complex circuit layouts. Everything comes neatly packed in a transparent storage box, making it easy to organize and access the wires during projects. Whether you're experimenting with sensors, testing microcontroller circuits, or building multi-layered breadboard setups, this assorted jumper kit delivers the reliability and flexibility needed for fast prototyping. The wires are unbreakable, easy to place, and suitable for any breadboard or point-to-point connection. Features: Includes 840 pre-formed jumper wires in 14 assorted lengths for versatile prototyping. High-conductivity copper wires ensure stable and reliable circuit connections. Rigid and unbreakable wire structure allows repeated use without deformation. Pre-bent right-angle ends provide easy insertion into breadboards and PCB holes. Comes in a transparent storage box for organized and convenient access. Suitable for all breadboard projects, circuit testing, and DIY electronics.

560PCS Breadboard Jumper Wire Kit for DIY Electronics & Prototyping The 560PCS Breadboard Jumper Wire Kit is a compact and versatile set designed for students, DIY electronics enthusiasts, and prototype builders. With multiple pre-formed wire lengths included, this kit helps you build neat, organized, and stable breadboard circuits. Each jumper is made using high-quality copper for strong conductivity and is precisely bent at right angles for easy insertion into breadboards and PCB holes. The kit comes in a clean, transparent storage box, allowing quick access to different lengths during circuit-building tasks. Whether you're testing microcontroller projects or assembling multi-stage circuits, this jumper set makes prototyping smoother and more efficient. The wires are sturdy, unbreakable, and suitable for any breadboard-based experimentation. Features: 560 pre-formed jumper wires in assorted lengths for organized circuit building. High-quality copper ensures stable electrical connectivity. Pre-bent right-angle tips allow easy and firm insertion. Durable, stiff wires designed for long-term reuse without breaking. Comes in a transparent storage box for neat organization. Ideal for breadboard experiments, DIY electronics, and circuit prototyping.