3 Channel Digital Subwoofer Amplifier Board The 3 channel digital subwoofer amplifier board runs on two high-quality TPA3116D2 digital amplifier chips. It is powered at a DC supply voltage of 12-24V. The subwoofer amplifier board has very sound quality with great amplifying power. This amplifier board has 3 channels out of which there are two 50W channels and one 100W channel that works with high efficiency and produces low heat. Users can simply connect the power supply and loudspeaker box in order to enjoy pure digital music. Disclaimer: Please note that this 3-Channel Digital Subwoofer Amplifier Board uses a clone IC designed to offer similar functionality to TPA3116D2 digital amplifier chips. This product has been tested to ensure comparable performance and quality for compatible applications. Key Features: Utilizes two TPA3116D2 digital amplifier chips for excellent sound quality. Operates with a DC supply voltage range of 12V to 24V. Features two 50W channels for left and right speakers. 100W channel dedicated to the subwoofer. Minimizing heat generation even under high load conditions. Outputs are compatible with 4-8 ohm speaker configurations. Offers a frequency response range from 14Hz to 100kHz. Provides a high SNR of 100dB. Operates at a switching frequency of 1.2MHz.

3 Channel IR Infrared CTRT5000 Line Detection Module The 3 Channel IR Infrared CTRT5000 Line Detection Module uses Infrared to detect the line so it has anti-interference ability, visible light will not interfere with its operation. The TCRT5000 is a reflective sensor that includes an infrared emitter and phototransistor in a leaded package that blocks visible light. It has indicator LEDs on it, when tracing sensor senses a key signal, LED lights, otherwise off. 3 channel line-following sensor modules are necessary parts for making a robot. Adopt Infrared detection, high ability of anti-interference. Using the CTRT5000 sensor, high sensitivity, and stability. Fine workmanship, with indicator light. Come with bolt holes for easy installation. It has 3 TCRT5000 Infrared Line Tracking sensors with an onboard comparator, LED indicators, and other signal conditioning components, and yes it is Arduino-compatible! Check out the best collection of Sensor Kits . Application: Line follower robot Obstacle detector robot Grid navigating robots Maze Solving Robot Home automation Smart parking system

3 in 1 Educational DIY Solar Robot Kit Introducing the Solar Robot Educational Model Building Kit, a fantastic DIY project for kids and adults alike. This innovative kit features three different working models: a robot, scorpion, and tank, all powered by direct sunlight. To ensure optimal functionality, it's important to build the kit correctly, and only one project should be completed at a time. For best results, assemble the 3 in 1 solar robot kit outside in direct sunlight. By following the step-by-step instructions provided, assembly is a breeze, making it an excellent educational toy that promotes brainpower and solar energy awareness. Empower your children with this easy-to-assemble kit, allowing them to experience the benefits of solar energy while also learning about its importance in our world. With the Solar Robot Educational Model Building Kit, the possibilities are endless! Features: Build 3 different models: Solar Robot, Solar Tank, and Solar Scorpion. Excellent addition to a home-school curriculum. Easy to assemble by following step-by-step instructions. Powered by the sun - no batteries required. Great assembling toy for kids to practice using their brains and learn the benefits of solar energy. Building these projects teach kids the benefits of solar energy while having fun.

3 mm Yellow LED (Pack of 10) A Yellow light-emitting diode (LED) is a semiconductor light source. LED's are used as indicator lamps in many devices and are increasingly used for other lighting. It looks like a white led and illuminate's blue light. When a light-emitting diode is switched on, electrons are able to recombine with holes within the device, releasing energy in the form of photons. This effect is called electroluminescence and the colour of the light (corresponding to the energy of the photon) is determined by the energy bandgap of the semiconductor. read our blog about Turning on an LED with your Raspberry Pi’s GPIO Pins which explains controlling led with raspberry pi .

3 Pin Push in Conductor The 3 Pin lever nuts connector is designed with a rated voltage of 400V and an impulse voltage of 4KV. The 3 pin lever nuts compact connector is manufactured with a modified nylon (PA66) and phosphor copper is used as a contact material.

3 Pin Toggle Switch (3A 230V) This particular SPDT toggle switch is designed to be panel-mounted, with a threaded bushing that allows it to be mounted securely to a panel or enclosure. The toggle switch has a standard rating of 3 amps and 230 volts, making it suitable for a wide range of applications. SPDT stands for Single Pole Double Throw, which means that this switch has a single input or output, and two possible outputs or inputs that can be selected by toggling the switch. This makes it an ideal component for projects where you need to select between two options, such as choosing between two different power sources or selecting between different operational modes. One of the key features of this SPDT toggle switch is its front screw, which allows for easy installation and secure mounting to an enclosure using the provided nut. The washer and nut also make installation a breeze, ensuring that the switch stays firmly in place. This Mini Panel Mount SPDT Toggle Switch is a reliable and versatile component that is well-suited for a range of projects and applications. Its simple yet effective design and ease of installation make it a popular choice among DIYers, hobbyists, and professionals alike. Application: Lighting Motors DIY Projects

3-in-1 Smart Sports Kit for VinciBot - Educational STEM Kit for Kids Check out the Matatalab VinciBot 3-in-1 Smart Sports Kit! This fun STEM educational toy is all about learning robotics and programming while having a blast. Your child can dive into exciting sports like football, track and field, and basketball, all while exploring coding, AI, and machine learning. This coding robot kit is great for kids who want to start learning programming. It lets them control a robot during fun sports challenges, making learning interactive and enjoyable. With this kit, your child will develop important skills like critical thinking and problem-solving. Get the VinciBot Smart Sports Kit and let your child explore a fun way to learn and play! Features: Play Football, Track and Field, and Basketball with VinciBot. Learn robotics, programming, and IoT for a full STEM experience. Control VinciBot and explore robotics basics. Customize VinciBot for creative challenges. Introduce kids to machine learning and AI. Connect to the Internet of Things for immersive learning. Great for classes, coding clubs, and robotics competitions!

3-State Octal Bus Transceiver IC - 74HC245 The 74HC Series 74HC245 octal bus transceivers are designed for asynchronous two-way communication between data buses. The control function implementation minimizes external timing requirements. The device allows data transmission from the A Bus to the B Bus or from the B Bus to the A Bus depending upon the logic level at the direction control (DIR) input. The enable input (G) can be used to disable the device so that the buses are effectively isolated. Pinout: Pinout Of 74HC245 IC Pin Number Pin Name Description 1 Direction Control (DIR) This pin decides the direction of the Data. 2 to 9 Data Input/output (A0-A7) These 8 pins can be used as 8-bit Input or 8-bit Output pins based on the state of DIR pin 10 Ground (GND) Connected to the ground of the system 11 to 18 Data Input/output (B0-B7) These 8 pins can be used as 8-bit Input or 8-bit Output pins based on the state of DIR pin 19 Output Enable (OE) Active Low pin – Used to Enable/Disable Input 20 Supply Voltage (Vcc) Differential Analog input +. Connect to ADC input

3-State Output Octal D-Type Flip-Flop IC - 74HC374 The 74HC Series 74HC374 is a 20 Pin 3-State output Octal D-Type Flip-Flop IC having 2V to 6V Operating Voltage range with 7.8mA output current and high noise immunity. It has the ability to drive  15  LS-TTL  loads.  Due to the large output drive capability and the 3-STATE feature, these devices are ideally suited for interfacing with bus lines in a bus organized system. The eight edge-triggered flip-flops enter data into their registers on the LOW to HIGH transition of the clock (CP). The output-enable (OE) controls the 3-state outputs and is independent of the register operation. When OE is HIGH, the outputs are in the high-impedance state. Pinout: Pinout of 74HC374 IC

3.3k Ohm Resistor - (Pack of 10) The 3.3k 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. A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses. Resistor Colour Code: