The 20cm Male-to-Male Jumper Wire Set includes 40 high-quality, color-coded wires designed for easy and reliable prototyping. Each wire features standard 2.54mm (0.1 inch) pitch male connectors on both ends, ensuring seamless compatibility with breadboards, Arduino, Raspberry Pi, and other development platforms.

Perfect for engineers, students, and DIY enthusiasts, this jumper wire set enables quick, solderless connections for efficient circuit building and testing.

Key Features:
1. Reusable & Durable – Built for repeated use in prototyping environments.
2. Precision Fit – Fully compatible with all 2.54mm female headers, breadboards, and microcontroller pins.
3. Color-Coded Wires – Simplifies wiring, tracing, and debugging.
4. Flexible Configuration – Use as a 40-pin ribbon or separate into individual wires.
5. Reliable Connection – Firm male pins provide secure and stable signal transmission.
6. Wide Compatibility – Works with Arduino, Raspberry Pi, ESP32, STM32, and more.

Specifications:
1. Type: Male to Male.
2. Connector Type: Dupont-style.
3. Total Pins: 40 (1 × 40 ribbon strip).
4. Wire Length: 20cm.
5. Pitch: 2.54mm standard spacing.
6. Color: Multicolor (Rainbow).

20cm Dupont Male To Male Jumper Wires 40pcs – 2.54mm Breadboard Cable For Arduino

Enhance your automation and control projects with this dependable 12V Adjustable Delay Timer Relay Module, built using the reliable 555 timer IC and a high-quality 12V relay. The module provides an adjustable delay timing sequence from 2 to 5 minutes using the onboard variable resistor.

When powered ON, the relay remains in its default NC (Normally Closed) position while the timer counts down. After the preset delay time expires, the relay automatically switches from NC to NO (Normally Open), activating the connected device or circuit. The relay remains active until the Reset Button is pressed, which cuts off the power supply to the connected load. An additional Enable Button allows the user to reactivate the power supply to the connected load after the system reset.

This timer relay module is ideal for:
1. Automatic switching systems (e.g., alarm, LED light, AC Bulb).
2. Battery and inverter protection systems.
3. Smart control applications.
4. DIY electronics projects.

Key Features:
1. Adjustable delay timing from 2 to 5 minutes.
2. Built with a stable 555 timer IC.
3. Automatically switches the relay from NC to NO after a delay.
4. Manual Reset and Enable buttons.
5. Flexible relay output terminals:
i. NC (Normally Closed).
ii. NO (Normally Open).
iii. COM (Common).

Specifications:
1. Operating Voltage: 12V DC.
2. Maximum Load Current: 3A.
3. Delay Time: Adjustable from 2–5 Minutes.
4. Relay Type: 12V Relay Module.
5. Trigger Output: NC / NO / COM.

Power Consumption:
1. Idle Mode:
i. Current Consumption: 15mA.
ii. Power Consumption: 0.18W.

2. Active Mode:
i. Current Consumption: 50mA.
ii. Power Consumption: 0.59W.

Compact, energy-efficient, and easy to use, this timer relay module is a practical solution for timing and switching applications requiring automatic delayed activation.

12V Adjustable Delay Timer Relay Module (2–5 Minutes)

The RUNCCI-YUN 12V Active Piezo Buzzer is designed for loud and dependable sound output in electronic systems. Operating at 12V, this buzzer delivers a powerful sound level of up to 100dB, making it ideal for alarms, warning systems, and industrial or DIY applications.

Each buzzer features an active design with a built-in oscillator, allowing it to produce sound instantly when powered—no external signal source required. With added vibration feedback, this buzzer provides both audible and physical alerts for enhanced functionality.

Perfect for engineers, hobbyists, and technicians, this buzzer ensures easy integration and reliable performance across various electronic projects.

Key Features:
1. Loud 100dB Output – Clear and powerful sound for alerts and alarms.
2. 12V Operation – Optimized for stable 12V power systems.
3. Active Buzzer – Built-in oscillator for direct DC operation.
4. Durable Design – Suitable for long-term and repeated use.
5. Easy Connection – Simple 2-pin interface for quick installation.
6. Wide Applications – Ideal for alarm systems, Arduino projects, automation, and DIY electronics.

Specifications:
1. Brand: RUNCCI-YUN.
2. Manufacturer: RUNCCI-YUN.
3. Part Number: R589.
4. Type: Active Piezo Buzzer.
5. Operating Voltage: 12V.
6. Frequency (HZ): 400.
7. Sound Level: Up to 100dB.
8. Function: Sound + Vibration.
9. Connection Type: 2-pin.
10. Color: Black.
11. Total Size: 34 x 17 x 15mm/1.3" x 0.7" x 0.6" (L*W*T).
12. Mounting Hole Diameter: 3mm/0.12".
13. Operating temperature: -20 ~ +60 °C.

Active Piezo Buzzer 12v

Protect your DIY electronic projects with this sturdy plastic enclosure box. Measuring 100mm x 80mm x 23mm, it offers ample room for circuit boards and components. Its quality construction ensures long-lasting protection, and the ventilation design helps prevent overheating. Ideal for hobbyists, engineers, and makers who value both functionality and style.

DIY Plastic Electronic Project Box

The 12.6V 2A 18650 Lithium Battery Charger is a reliable power adapter designed for safely charging 3-cell (3S) lithium battery packs made from 18650 lithium-ion batteries. It provides a stable 12.6V constant voltage output with up to 2A charging current, ensuring efficient and safe charging for rechargeable battery packs used in various electronic devices.

This charger follows the standard CC/CV (Constant Current / Constant Voltage) charging method commonly used for lithium-ion batteries, helping to protect the battery pack from overcharging while maximizing battery life. It is ideal for charging 3S 18650 battery packs used in DIY electronics, portable devices, robotics, and power banks.

Key Features:
1. Designed for 3S 18650 lithium-ion battery packs.
2. 12.6V output voltage for proper lithium battery charging.
3. 2A charging current for efficient charging.
4. Built-in over-voltage and short-circuit protection.
5. Uses CC/CV charging method for safe battery charging.
6. Compact and lightweight design.
7. Easy plug-and-play operation.

Specifications:
1. Output Voltage: 12.6V DC.
2. Output Current: 2A.
3. Input Voltage: 100–240V AC (depending on adapter model).
4. Charging Method: Constant Current / Constant Voltage (CC/CV).
5. Compatible Battery: 3 × 18650 lithium-ion cells in series (3S pack).
6. Connector Type: DC plug (varies by model).

Smart 12.6V 2A 18650 Lithium Battery Charger

The HC-05 Bluetooth Module is a versatile and widely used serial Bluetooth communication module designed for wireless data transmission between microcontrollers, PCs, and mobile devices. It supports Bluetooth 2.0 + EDR and can operate in Master or Slave mode, making it ideal for a wide range of electronics, robotics, and IoT projects.

With simple UART serial communication, the HC-05 allows easy integration with platforms such as Arduino Uno, ESP32, and Raspberry Pi, enabling wireless control, data logging, and device communication without complex networking.

Key Features:
1. Bluetooth 2.0 + EDR for stable wireless communication.
2. Can operate in Master or Slave mode.
3. Supports serial UART communication for easy integration.
4. Low power consumption and compact form factor.
5. Compatible with microcontrollers and embedded devices.
6. Simple AT command setup for configuration.

Specifications:
1. Operating Voltage: 3.3V – 5V.
2. Communication Interface: UART (TX, RX).
3. Default Baud Rate: 9600 bps (configurable).
4. Transmission Range: Up to 10 meters (line-of-sight).
5. LED Indicator: Status signal for power and connection.
6. Dimensions: Approx. 36 mm × 15 mm.

Pin Description:
1. VCC: Power supply (3.3–5V).
2. GND: Ground.
3. TXD: Serial data output.
4. RXD: Serial data input.
5. STATE: Connection status indicator.
6. EN/KEY: Module configuration pin.

HC-05 Bluetooth Module

The LM2596 is a compact and efficient DC-DC step-down (buck) voltage regulator that converts a higher DC input voltage into a stable, lower output voltage. It is widely used in Arduino, ESP32, IoT, robotics, and other electronic projects because it delivers reliable power with minimal energy loss.

Specifications:

1. Input Voltage: 4.0 V – 40 V DC.
2. Output Voltage: 1.25 V – 37 V DC (adjustable).
3. Maximum Output Current: 3 A (2 A recommended for continuous operation).
4. Conversion Efficiency: Up to 92%.
5. Switching Frequency: 150 kHz.
6. Operating Temperature: -40°C to +85°C.
7. Module Dimensions: Approximately 43 × 21 × 14 mm.
8. Applications: ESP32, Arduino, Raspberry Pi, IoT devices, battery-powered systems, LED drivers, robotics, and embedded electronics.

LM2596 DC-DC Step-Down Voltage Regulator Module

This 433MHz RF wireless communication module is a reliable transmitter and receiver set designed for short-range wireless control projects. Built around the widely used HT12E encoder and HT12D decoder ICs, it converts parallel data into a serial RF signal for transmission and accurately reconstructs it at the receiver end for seamless device control.

Ideal for Arduino, microcontroller, and embedded systems projects, this module allows easy wireless switching, automation, and remote control applications.

Key Features:
1. Operates on stable 433MHz RF frequency.
2. Based on HT12E (4-bit encoder) and HT12D (4-bit decoder).
3. Converts 12-bit data (8 address + 4 data bits) into serial RF transmission.
4. Reliable address validation ensures correct data reception.
5. 4-bit digital output (D0–D3) on receiver side.
6. Jumper-selectable address pins for flexible configuration.
7. Compatible with microcontrollers and digital control systems.
8. Easy connection via male header pins.
9. Supports push buttons or digital inputs (4.5V – 5V logic interface).

Electrical Specifications:
1. Operating Voltage: 7V – 12V.
2. Frequency: 433MHz.
3. Transmission Range: ~10 meters (typical, environment dependent).

Applications:
1. Wireless switch control.
2. Home automation projects.
3. Arduino/ESP8266/ESP32 RF communication.
4. Remote control systems.
5. DIY electronics and robotics.

A compact, easy-to-use RF module set perfect for hobbyists, students, and engineers building reliable short-range wireless control systems.

433MHz RF Transmitter & Receiver Module (HT12E/HT12D Encoder–Decoder Kit)

The 20cm Male-to-Female Jumper Wire Set includes 40 high-quality, color-coded wires designed for easy and reliable prototyping. Each wire features standard 2.54mm (0.1 inch) pitch connectors, ensuring seamless compatibility with Arduino, Raspberry Pi, breadboards, and other development platforms.

Perfect for engineers, students, and DIY enthusiasts, this jumper wire set allows quick, solderless connections for efficient circuit building and testing.

Key Features:
1. Reusable & Durable – Built for repeated use in prototyping environments.
2. Precision Fit – Compatible with all 2.54mm pin headers, breadboards, and microcontrollers.
3. Color-Coded Wires – Simplifies wiring, tracing, and debugging.
4. Flexible Configuration – Use as a 40-pin ribbon or separate into individual wires.
5. Reliable Connection – Tight-fit DuPont connectors ensure stable signal transmission.
6. Wide Compatibility: Works with Arduino, Raspberry Pi, ESP32, STM32, and more.

Specifications:
1. Type: Male to Female.
2. Connector Type: Dupont-style.
3. Total Pins: 40 (1 × 40 ribbon strip).
4. Wire Length: 20cm.
5. Pitch: 2.54mm standard spacing.
6. Color: Multicolor (Rainbow).

20cm Dupont Male To Female Jumper Wires 40pcs – 2.54mm Breadboard Cable For Arduino

The VC-02-Kit AI Intelligent Offline Voice Recognition Control Module Development Board is a smart voice control development platform designed for offline speech recognition and command-based device control. It allows developers to integrate voice interaction into electronics projects without needing an internet connection, making it ideal for smart home devices, robotics, automation systems, and embedded applications.

This development kit enables users to create and train custom voice commands that can trigger different actions in connected systems. Because the processing is done locally on the device, it offers fast response, improved privacy, and reliable operation even without network connectivity.

Key Features:
1. Offline AI voice recognition (no internet required).
2. Supports custom voice command training.
3. Fast and reliable local processing.
4. Suitable for embedded systems and smart control projects.
5. Multiple control interfaces for integration with microcontrollers.
6. Low power consumption and compact design.
7. Easy development and testing using the included development board.

Specifications:
1. Voice Recognition: Offline AI speech recognition.
2. Command Support: Customizable voice commands.
3. Processing: On-device voice processing.
4. Power Supply: Typically 3.3 V – 5 V (depending on board configuration).
5. Interfaces: GPIO / UART / serial communication for external control.
6. Audio Input: Onboard microphone for voice capture.
7. Output: Control signals to trigger external devices.

Main Components:
1. VC-02 voice recognition module.
2. Onboard microphone for voice input.
3. Status indicator LEDs.
4. Interface pins for communication and control.
5. Development board for easy prototyping.

Typical Applications:
1. Smart home voice control systems.
2. Voice-controlled appliances.
3. Robotics and automation projects.
4. IoT devices with offline voice interaction.
5. Assistive technology devices.
6. DIY electronics and embedded system development.

Advantages:
1. Works completely offline for privacy and reliability.
2. Low-latency voice response.
3. Easy integration with microcontrollers such as Arduino Uno, ESP32, and Raspberry Pi.

VC-02-Kit AI Intelligent Offline Voice Recognition Control Module Development Board

The 20cm Female-to-Female Jumper Wire Set includes 40 high-quality, color-coded wires designed for easy and reliable prototyping. Each wire features standard 2.54mm (0.1 inch) pitch female connectors on both ends, ensuring seamless compatibility with pin headers, Arduino, Raspberry Pi, and other development platforms.

Perfect for engineers, students, and DIY enthusiasts, this jumper wire set enables quick, solderless connections for efficient circuit building and testing.

Key Features:
1. Reusable & Durable – Built for repeated use in prototyping environments.
2. Precision Fit – Compatible with all 2.54mm male pin headers and microcontroller pins.
3. Color-Coded Wires – Simplifies wiring, tracing, and debugging.
4. Flexible Configuration – Use as a 40-pin ribbon or separate into individual wires.
5. Reliable Connection – Tight-fit DuPont female connectors ensure stable signal transmission.
6. Wide Compatibility – Works with Arduino, Raspberry Pi, ESP32, STM32, and more.

Specifications:
1. Type: Female to Female.
2. Connector Type: Dupont-style.
3. Total Pins: 40 (1 × 40 ribbon strip).
4. Wire Length: 20cm.
5. Pitch: 2.54mm standard spacing.
6. Color: Multicolor (Rainbow).

20cm Dupont Female To Female Jumper Wires 40pcs – 2.54mm Breadboard Cable For Arduino

The INA226 Voltage and Current Monitoring Module is a high-precision power monitoring device designed to measure bus voltage, bidirectional current, and power consumption in electronic circuits. It is based on the reliable INA226 developed by Texas Instruments and communicates through an I²C interface, making it easy to integrate with platforms like Arduino Uno, ESP32, and Raspberry Pi.

This module can measure both voltage and bidirectional current flow, allowing it to detect current moving in either direction. It is ideal for battery monitoring, power supply analysis, solar energy systems, embedded electronics, and IoT power monitoring applications.

Key Features:
1. Measures bus voltage, current, and power consumption.
2. Bidirectional current detection (–20 A to +20 A).
3. High-precision 16-bit ADC for accurate measurements.
4. I²C communication interface.
5. Programmable device addresses (up to 16).
6. Low power consumption (&lt;1 mA).
7. Compact module with mounting holes for easy installation.

Product Specifications:
1. Measurement Voltage: 0 V – 36 V (negative voltages not supported).
2. Measurement Current: –20 A to +20 A.
3. Power Supply Voltage: 2.7 V – 5.5 V.
4. Interface: I²C.
5. I²C Address: Up to 16 configurable addresses via solder pads.
6. Input Offset Voltage: ±10 µV.
7. Accuracy: ±1%.
8. Resolution: 16-bit.
i. Current resolution: 1.25 mA.
ii. Voltage resolution: 1.25 mV.
9. Current Consumption: &lt; 1 mA.
10. Dimensions: 20 mm × 27 mm.
11. Mounting Hole Diameter: 3 mm

Pin Description / Usage:
1. VCC – Power supply input (2.7 V – 5.5 V).
2. GND – Power supply ground.
3. SDA – I²C data line.
4. SCL – I²C clock line.
5. ALERT – Multi-function alert/alarm output.
6. A0, A1 – I²C address configuration pins.

INA226 Voltage and Current Module

The Arduino UNO R3 is a widely popular and versatile microcontroller development board based on the ATmega328P chip. Known for its reliability, ease of use, and extensive community support, the UNO R3 is perfect for prototyping, robotics, IoT projects, embedded systems, and educational electronics.

Featuring 14 digital I/O pins, 6 PWM outputs, and 6 analog inputs, the UNO R3 can connect to a wide range of sensors, actuators, and modules. It is programmed using the Arduino IDE via USB, allowing beginners and professionals alike to create projects quickly and efficiently.

Key Features:
1. Microcontroller: ATmega328P.
2. Operating Voltage: 5V.
3. Digital I/O Pins: 14 (6 PWM outputs).
4. Analog Input Pins: 6.
5. Flash Memory: 32 KB.
6. SRAM: 2 KB.
7. EEPROM: 1 KB.
8. Clock Speed: 16 MHz.
9. USB interface for programming and serial communication.
10. Built-in power regulation for external supply.
11. Compatible with Arduino shields and accessories.

Specifications:
1. Power Supply: USB (5V) or external 7–12V DC.
2. Digital I/O Pins: 14 (PWM on D3, D5, D6, D9, D10, D11).
3. Analog Inputs: 6 (A0–A5).
4. Communication: UART (TX/RX), I²C, SPI.
5. Reset Button: Built-in for easy program restarting.
6. Dimensions: Approx. 68.6 mm × 53.4 mm.

Pin Description:
1. VCC / 5V / 3.3V: Power outputs.
2. GND: Ground.
3. D0–D13: Digital I/O pins.
4. A0–A5: Analog input pins.
5. TX/RX: Serial communication pins.
6. RST: Reset pin.

Arduino UNO R3 Board

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