Dual 4-Input OR Gate IC - CD4072 The CD4072 Dual 4-Input OR gates IC provides the system designer with direct implementation of the positive-logic OR function and supplements the existing family of CMOS gates. The CD4x Series CD4072 types are supplied in 14-lead hermetic dual-in-line ceramic packages (F3A suffix), 14-lead dual-in-line plastic packages (E suffix), 14-lead small-outline packages (M, MT, M96, and NSR suffixes), and 14-lead thin shrink small-outline packages (PW and PWR suffixes). check out : CD40106 - Hex Schmitt Trigger Inverter IC Pinout: Pinout of CD4072 Dual 4-Input OR gates IC

Dual Complementary Pair with Inverter IC - CD4007 The CD4007 IC is comprised of three n-channel and three p-channel enhancement-type MOS transistors. The transistor elements are accessible through the package terminals to provide a convenient means for constructing the various typical circuits. More complex functions are possible using multiple packages. Numbers shown in parentheses indicate terminals that are connected together to form the various configurations listed. The CD4007 Dual Complementary IC types are supplied in 14-lead hermetic dual-in-line ceramic packages (F3A suffix), 14-lead dual-in-line plastic packages (E suffix), 14-lead small-outline packages (M, MT, M96, and NSR suffixes), and 14-lead thin shrink small-outline packages (PW and PWR suffixes). Applications: Extremely high-input impedance amplifiers Shapers Inverters Threshold detector Linear amplifiers Crystal oscillators

Dual J-K Positive Edge-Triggered Flip-Flop IC - 74HC109 The 74HC Series 74HC109 IC devices contain two independent J-K positive-edge-triggered flip-flops. A low level at the preset or clear inputs sets or resets the outputs regardless of the levels of the other inputs. When preset and clear are inactive (high), data at the J and K inputs meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold-time interval, data at the J and K inputs may be changed without affecting the levels at the outputs. These versatile flip-flops can perform as toggle flip-flops by grounding K and tying J high. They also can perform as D-type flip-flops if J and K are tied together. The 74HC109 is characterized for operation from 0°C to 70°C. The feature of 74HC109 is a package Options Include Plastic "Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs Pinout: Pinout of 74HC109 IC

Dual JK Flip Flop IC - CD4027 CD4027 is a single monolithic chip integrated circuit containing two identical complementary-symmetry J-K master-slave flip-flops. Each flip-flop has provisions for individual J, K, Set, Reset, and Clock input signals. Buffered Q and Q\ signals are provided as outputs. This input-output arrangement provides for compatible operation with the RCA-CD4013B dual D-type flip-flop. The CD4x Series CD4027 is useful in performing control, register, and toggle functions. Logic levels present at the J and K inputs along with internal self-steering control the state of each flip-flop; changes in the flip-flop state are synchronous with the positive-going transition of the clock pulse. Set and reset functions are independent of the clock and are initiated when a high-level signal is present at either the Set or Reset input. The CD4027 types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (M, M96, MT, and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes). check out : CD4046 - Micropower Phase Locked Loop IC Pinout: Pinout of CD4027 IC

Dual Micro USB 18650 LiPo DIY Power Bank Module (3.7V to 5V, 2A Output) The Dual Micro USB 18650 LiPo DIY Power Bank Module is designed to convert a 3.7V 18650 lithium battery into a stable 5V output with up to 2A current, making it perfect for charging smartphones, IoT devices, and other USB-powered gadgets. At its core, this module functions as a compact power management and boost conversion board, allowing you to build a fully customized portable power bank. It features dual Micro USB ports for convenient charging and integrated LED indicators to display charging and power status. Ideal for DIY enthusiasts, makers, and electronics hobbyists, this board gives you the flexibility to create your own reliable mobile power solution—provided you have basic electronic assembly knowledge. When installing items, it is important to keep the following in mind: Batteries can be connected in parallel with a voltage ranging from 3.2 to 4.2V, including 18650 flat and polymer batteries. We can connect the battery to the motherboard B + negative-, which is installed against the burning motherboard. Batteries that are new and old, or that have contradictory model brands, cannot be mixed. Features: Four-level LED bulb displays power, not working situation intelligent automated shutdown. The built-in lithium battery protection IC, overcurrent, overpressure, and undervoltage protection Dual USB output ports. Input requirements: 5V constant voltage power supply can charge input power, the most matching charger for 5V 1A or above. Requirements for rechargeable batteries: Compatible batteries include 18650 batteries, cell phone batteries, flat-panel batteries, MP3 batteries, and polymer lithium batteries ranging from 3.7V to 4.2V.

Dual Monster Moto Shield The Motor Driver Shield Monster Moto has been upgraded to the Dual Monster Moto Shield VNH3ASP30 DC Motor Driver 2x14A (Peak 30A). This new version features a pair of VNH3ASP30 full-bridge motor drivers, replacing the previous L298 H-bridge. The support circuitry has also been improved to allow for the driving of high-current motors . To make it easy to connect larger gauge wires, the VIN and motor out are now pitched for 5mm screw terminals (not included). The direction of each motor is controlled by INA and INB, while the PWM pins turn the motors on or off. The VNH3ASP30 is ideal for a variety of automotive applications and includes a dual monolithic high-side driver and two low-side switches. The high-side driver switch utilizes STMicroelectronics' VIPower M0 technology to integrate a Power MOSFET with intelligent signal/protection circuitry on the same die. Furthermore, the current sense (CS) pins on the VNH3ASP30 will output around 0.13 volts per amp of output current. All these features make the Dual Monster Moto Shield VNH3ASP30 DC Motor Driver 2x14A (Peak 30A) a powerful and versatile motor driver shield.

Dual Pin 12V 2Amp Power Adapter This 12V Power Adapter Compatible with Most of the SMPS and Electronic Products that use the 12V AC Adapter . Overcurrent protection, overvoltage protection and overload protection, short-circuit protection ensure the stability and smoothness. The products adopt the industry's top materials and processes, flame retardant shell resistant to high temperature of 1382?, premium-quality components and safe reliable power cord. Gives a safe charging. Applications: Setup Box CCTV Camera LED strips Solar Light ADSL Modem TV Tuner card Weighing Scale Printers and Scanners Electronics & IT Gadgets

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

Dual Retriggerable Monostable Multivibrator IC - 74HC123 The 74HC Series 74HC123 is a 16 Pin Dual Retriggerable Monostable Multivibrator IC having 4.75V to 5.25V Operating Voltage with an output current of 8mA.  It can generate output pulses from a few nano-seconds to extremely long duration up to 100% duty cycle. It contains internal timing resistors that allow the circuits to be used with only an external capacitor. The 74HC123 contains two independent monostable multivibrators, each with two inputs and two outputs. When triggered, the output of the multivibrator goes high for a fixed period of time, after which it returns to its original state. The duration of the output pulse is determined by the values of an external resistor and capacitor connected to the IC. check out : CD4538 - Dual Precision Monostable Multivibrator IC Pinout: Pinout Of 74HC123 IC

Dual Shaft BO Motor with Wheel (4pcs): These four Dual Shaft BO Motors with Wheels have a low-cost, geared DC motor that provides good torque and rpm even at lower operating voltages. The biggest advantage of these Dual Shaft BO motors is their ability to deliver strong performance. These motors can serve as an alternative to metal gear DC motors. The high-quality rubber wheels provide maximum traction while in operation, and their nylon-reinforced plastic rim makes them strong and sturdy. The BO motor with wheels is easy to install, making it an ideal choice for a mobile robot car. To create a mobile robot car, essential components like Arduino , batteries , switches , wires , and soldering tools are necessary. APPLICATIONS: Line Follower Robot Obstacle Avoider Robot Racing Robot Firefighting Robot