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 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

Dual Shaft NEMA 34 CNC Stepper Motor 34HS46-5004D (8.5NM-5A) This is Dual Shaft NEMA 34 CNC Stepper Motor, You've come to the right place if you're looking to build a large CNC Mill, CNC Lathe, or CNC Router, among other things. This NEMA 34HS46-5004D (8.5NM-5A) Dual shaft Stepper Motor is the ideal choice for you. So the 8.5N.m torque provided by this monster NEMA stepper motor is the most appealing feature. This motor responds quickly to stepper motor driver starting, stopping, and reversing pulses. At 5A of current per phase, it produces 8.5N.m of torque. They can be used in situations requiring high torque at high speeds. A full rotation is divided into a number of equal steps by the stepper motor. As a result, as long as the motor is carefully sized for the application in terms of torque and speed, the motor's position can be commanded to move and hold at one of these steps. When it comes to larger machines that require high torques, this NEMA 34 Stepper Motor is a beast. These are custom-made to withstand the high torque demands of large CNC machines. The NEMA 34HS46-5004D (8.5NM-5A) Dual shaft Stepper Motor is a brushless dc motor with Open Loop Control. This shaft type is useful for providing stability during high-power operation. Features: Supreme finish Smooth surface Long-lasting life Low cost for control achieved High torque at startup and low speeds Ruggedness Simplicity of construction Can operate in an open-loop control system Low maintenance Less likely to stall or slip

Dual USB 5V 1A 2.1A  PCB Power Module with LCD This is the Dual USB 5V 1A 2.1A Digital LCD 18650 Lithium Battery Charging Module Accessories, 18650 Circuit board shell. Meet the individual needs of your DIY, but you must understand basic electronic assembly. The motherboard comes with protection Charging, overcharge protection, over-discharge protection, and overcurrent protection. An intelligent output device after charging full, automatically stop charging, to prevent mobile phones overcharge. Output voltage and current stable, will not harm user devices. Note : The circuit board is connected to the battery negative B-, B + is positive, do not connect reversed, connecting reversed will burn the board, the battery is connected in parallel welding, assembling battery. Note that the insulation between the battery and the circuit board, battery lead not to touch the circuit board, so as not to cause a short circuit.

Dual USB Current Voltage Ammeter Tester The USB Current Voltage Ammeter Tester is a compact and easy-to-use diagnostic tool designed to help you measure the real-time voltage and current output of any USB port. Whether you're testing chargers, checking USB power stability, or monitoring device consumption, this tester displays both voltage and current alternately on its bright LED screen for quick and accurate readings. Its one-to-two output design allows you to test one or two devices simultaneously for side-by-side comparisons. Built with USB 2.0/3.0 compatibility, this portable tester works without any external power supply, making it convenient for technicians, hobbyists, and everyday users. With a measuring range of DC 3V–9V and 0–3A (with capability up to 5A peak), it ensures reliable power testing across a wide range of devices. It's the perfect tool to ensure your chargers, power banks, and USB ports are performing safely and efficiently. Features: Designed to measure voltage (DC 3V–9V) and current (0–3A) from USB ports with clear alternating LED display for easy monitoring. Equipped with dual USB output ports, enabling you to test one or two devices at the same time. Works without an external power supply, making it extremely portable and convenient for quick diagnostics. Compatible with USB2.0 and USB3.0 interfaces for wide usability across chargers, power banks, hubs, and electronic devices. Ideal for testing no-load and overload conditions, allowing users to check charging performance, USB activity, and device safety.