4-Pins DIP Momentary Square Tactile Push Button Switch 10 Pieces - 6x6x8mm 6x6x8mm Tactile 4 Pin Push Button Switch is widely used as a standard input buttons on electronic projects. These work best when you mount it on PCB but can also be used on a solderless breadboard for temporary connections in prototypes. The pins are normally open (disconnected) and when the button is pressed they are momentarily closed and complete the circuit. This tact switch also offers reliable dome contact technology and strong tactile feedback, with multiple operating forces to choose from. Applications include telecommunications, consumer electronics, audio/visual, medical devices, testing/instrumentation, and computer/peripherals.

4-Pins DIP Momentary Square Tactile Push Button Switch 5 Pieces - 12x12x12mm 12x12x12mm Tactile 4 Pin Push Button Switch is widely used as a standard input buttons on electronic projects. These work best when you mount it on PCB but can also be used on a solderless breadboard for temporary connections in prototypes. The pins are normally open (disconnected) and when the button is pressed they are momentarily closed and complete the circuit. This tact switch also offers reliable dome contact technology and strong tactile feedback, with multiple operating forces to choose from. Applications include telecommunications, consumer electronics, audio/visual, medical devices, testing/instrumentation, and computer/peripherals.

4-Soldering Zoo Animal Kit 4-Soldering Zoo Animal Kit is the perfect introduction to soldering and basic electronics for kids aged 6 and up. This DIY kit includes everything needed to create circuits, play with LEDs, and bring adorable animal characters to life. The kit features six pre-cut animal PCBs, LEDs, battery holders, and more, allowing kids to explore the world of STEM education in a fun and interactive way. The customizable animal characters and scenes, coupled with soft light RGB LEDs and a 48-hour battery life, make this kit ideal for creating unique animal displays at home, in the classroom, or during after-school events. The RoHs-free, soft-edge PCBs with immersion-gold edges ensure safety and environmental friendliness. Assembling the kit takes approximately 2 hours, providing an engaging and educational activity. The 4-Soldering Zoo Animal Kit not only introduces kids to soldering basics but also encourages creativity and imagination. This soldering kit offers a fantastic way for kids to learn while having fun. Features: Customizable animal characters and scenes Soft light RGB LED with nice transitions RoHs-free, soft edge PCB with immersion-gold, environment-friendly Battery life up to 48 hours Assemble Time: 2 hours Ages 6 and up Applications: This 4-Soldering Zoo Animal Kit is designed for creating simple circuits, introducing kids to the basics of circuitry and soldering It allows kids to play with LEDs, batteries, and bring zoo animals to life by soldering a LED and battery box on the back of each animal, making them blink immediately The kit offers a fun and educational way for kids to learn about electronics while engaging in a creative activity Ideal for use at home, in classrooms, or during after-school events, providing an engaging hands-on learning experience Kids can personalize the animals by decorating them with cute accessories, making each animal unique and perfect for display in a paper zoo or as pins

4.3 Kgf-cm Servo Motor (ES3001) This is ES3001 servo motor, This servo motor has an operating voltage of 4.8V~6.0V, It equips sophisticated internal circuitry that provides good torque, holding power, and faster updates in response to external forces, You can control this servo motor with Arduino which is connect by jumper wires and powered by battery . read our blog explaining the difference between servo motor and dc motor , which provides a detailed comparison between servo motors and DC motors. Applications: RC Airplane RC Glider RC Car

4.3in Serial Interface Electronic Paper Display This E-Ink display module, 4.3inch, 800x600 resolution, with serial interface and embedded font libraries, is far more user friendly than its competitors. You don't need to understand the intricate underlying details of e-Paper or the specific algorithms for displaying graphics, texts, and images. All it requires is a serial interface, and all that matters is your imagination. Features: Easy to use, displays any contents via one serial interface, including geometric graphics, texts, and images Embedded font libraries, supports 32, 48 and 64 dot matrix GBK Chinese fonts and English fonts Built-in 128MB NandFlash, allows the font/image data to be stored in either an external TF card or the internal NandFlash 4 grey level displaying, 800×600 resolution Adjustable serial interface baud rate, 115200 by default when power up Powered from 3.3V to 5V, compatible with logic level Ultra low power consumption, sleeping current lower than 5mA Comes with host computer software, control it directly on your computer Applications: e book Shopping mall POS Price label Industry instrument

4.5in Flex Sensor A SpectraSymbol Flex Sensor 4.5? Bend Sensor for Hand Gesture Recognition is a simple resistive sensor which is 4.5? in length yet a powerful sensor to sense the flexibility. As the sensor is flexed, the resistance across the sensor increases. The resistance of the flex sensor changes when the metal pads are on the outside of the bend (the text on the inside of bend). The connector is 0.1? spaced and bread board friendly. Check the datasheet for full specifications. The flex sensor is a bend detecting sensor which has got numerous applications in robotics, medical and haptic technology. The resistance of these sensors changes in accordance with the bend, which can be measured using any microcontroller. Note: The base of the sensor is sensitive to bending and may get damaged. Make sure that you bend only the sensing area. Flex Sensor Interfacing with Arduino: Flex Sensor Connection with Arduino Uno Applications: Angle Displacement Measurement Bends and Flexes physically with the motion device Possible Uses Robotics Gaming (Virtual Motion) Medical Devices Computer Peripherals Musical Instruments Physical Therapy

4.7k Ohm Resistor - (Pack of 10) 4.7k ohm Carbon Film Resistors are typical axial-lead resistors, which have much better temperature stability and provide lower noise, and are generally better for high frequency or radiofrequency applications. Excellent Noise Suppression, Moisture-Proof, High Temperature Resistance And Long Working Life. Resistor Colour Colour code Chart: Applications: To limit current in a circuit To measure current in a circuit To generate heat To remove electrical energy To divide voltage To set the gain of an amplifier To set a time delay To set frequency of an oscillator To protect against surges To absorb unwanted signals Electronic electricity meter To measure temperatures also check our 100K Ohm Resistor (Pack of 10) where you can get 100k resistor color code

4.8-6V Servo Motor Tester The Digital Multi Servo Tester ESC RC Consistency CCPM Master Speed Control offers 3 modes to check servo motors or ESC by connecting it to the battery or power supply. This servo tester can connect to up to 3 servos simultaneously. You can also connect up to 3 ESCs to test and compare their reaction time respectively. This unit can be used in 3 modes Manual - you can move the servos and check the throws manually by turning the knob. Neutral - servos are automatically set to neutral position (great of heli flyers). Auto - this mode operates the servos and moves the servos to their extreme position automatically. Features: Brand new high-quality tester for servo motor. Offer 3 modes to check servos or ESC. The Manual Mode allows you to turn the knob to different speeds and check the reaction time. The Neutral mode makes the servo go back to the neutral point. The Automatic ’’Window Wiper’’ Mode makes the servo swing like a window. wiper in the largest angle possible. Connect to up to 3 servos simultaneously. Connect up to 3 ESCs to test and compare their reaction time respectively. Built with LED indicators.

40 AMP ESC - Yellow Brushless Motor ESC is the perfect solution for drone enthusiasts and hobbyists. It excels in providing better flight control with its advanced BLDC technology. Crafted with top-quality materials, this speed controller ensures durability and optimal performance under ideal conditions. Suitable for motors consuming up to 40A current, it works on 2S-3S LiPo batteries and includes an onboard BEC for regulated 5V power. Brushless Motor ESC is not just a speed controller; it's a key component for endless possibilities in the world of drones. Made for ease of use and maintenance, it is the ideal choice for both beginners and experienced users. Add it to your cart now and experience the difference! Features: High quality brushless BEC replacement parts Excellent output ability of continues current of 40A Premium material made, stable and reliable Durable, Speed Controller, 40A, Universal Ideal speed controller for RC/FPV/Quadcopter/RC Airplanes and others Low resistance Sixteen cells Max (with BEC disabled) User programmable brake Low voltage auto setting based on battery Throttle range self-adjusting Soft start ramp up Auto motor cutoff with reset Runs motor in forward or reverse Safe power arming program ensures motor will not run accidentally after turn on Low torque start Auto shut down when signal is lost

40 Pin Wide IC Base 40 Pin IC base is a 40 pin IC holder, which can be soldered directly onto the PCB. The Integrated Circuits can be removed from this socket when required. The IC is placed on the socket at the time of use. This base acts as a removable IC holder. The socket is used when the IC is temperature sensitive and the heat from the soldering iron can damage the IC. This socket is used when working with a microcontroller IC and can be removed for programming Package Included: 5 x 40 Pin Wide IC Base