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.

8 Ohm 0.5W Speaker An 8 ohm 0.5 watt speaker is an electronic component that converts electrical signals into sound waves. It is typically used in small electronic devices, such as cell phones, portable speakers, and handheld radios, where space is limited and low power consumption is important. The resistance of a speaker, measured in ohms, determines its electrical characteristics and how it interacts with the amplifier or other electronic devices it is connected to. An 8 ohm speaker has a resistance of 8 ohms, which is a moderate impedance level that is suitable for use with a wide range of amplifiers. The power rating of a speaker, measured in watts, determines the maximum amount of power that the speaker can handle without being damaged. A 0.5 watt speaker has a relatively low power rating, which means that it is suitable for use with low-power amplifiers or in applications where high volume is not required. Speakers are used in a wide variety of electronic devices, including cell phones, portable speakers, handheld radios, home theater systems, and computer speakers. They are essential components of these devices, as they allow the user to hear the audio output of the device.

5V DC Mini Class D Pam8403 USB Power Amplifier Board The PAM8403 is a 3W, class-D audio amplifier. It offers low THD+N, allowing it to achieve high-quality sound reproduction. The new filterless architecture allows the device to drive the speaker directly, requiring no low-pass output filters, thus saving system cost and PCB area. With the same numbers of external components, the efficiency of the PAM8403 is much better than that of Class-AB cousins. The PAM8403 audio amplifier can extend the battery life, which makes it well-suited for portable applications. The board uses the typical circuit design of PAM8403, using MICRO USB power supply (reserved wire power interface), it is easy to use a universal mobile phone charger for its power supply, resistance devices are standardized patch technology, simple and stable. Applications: LCD Monitors / TV Projectors Notebook Computers Portable Speakers Portable DVD Players, Game Machines Cellular Phones/Speaker Phones Also check the PAM8610 Digital Amplifier Board available on Iotcart. It is a 15W per channel stereo Class-D audio amplifier with DC Volume Control. The working mode is Class D (PWM modulation type), and it features a switch function that, when shorted, will close the amplifier.

SmartElex I2S MEMS Digital Microphone Module with Audio Output The SmartElex I2S MEMS Digital Microphone Module with Audio Output is a high-quality microphone module designed for projects that require clear and accurate sound input. Compatible with microcontrollers like the ESP32, it offers low noise, high sensitivity, and outstanding reliability, making it perfect for applications such as voice recognition, AI learning, audio recording, and Bluetooth sound transmission. This digital microphone uses a surface-mount MEMS I2S sensor with a top port and no components at the bottom, allowing seamless integration into compact designs. Additionally, SmartElex provides an easy-to-use Arduino library, enabling quick setup and smooth operation for developers and hobbyists alike. Applications: Voice recognition AI learning Recording Bluetooth audio transmission Smart home audio projects Features: Compact in size High performance and low power consumption I2S low-noise digital output MEMS sensor with excellent dependability offers an Arduino library for ESP32 work.

SmartElex PAM8403 5V Two-Channel Stereo Mini Class-D Audio Amplifier The SmartElex PAM8403 5V Two-Channel Stereo Mini Class-D Audio Amplifier is a compact audio amplification module designed to deliver clear and efficient stereo sound from low-power audio sources. It solves the need for adding audio output to small electronic projects without bulky components or complex circuits. This module is suitable for students, makers, engineers, educators, and startups who want an easy way to integrate stereo audio into DIY electronics, learning kits, and embedded system prototypes. This stereo mini Class-D audio amplifier is commonly used in robotics, IoT devices, automation systems, and portable electronics that require lightweight and power-efficient audio output. It can be easily interfaced with platforms such as Arduino, Raspberry Pi, and ESP32 to drive small speakers in projects like voice alerts, sound feedback systems, and interactive devices. The simple design and stable performance make it easy to integrate into both prototype builds and finished products, enabling reliable audio output with minimal setup effort. Features: Two-channel stereo Class-D audio amplifier for clear sound output Operates on a 5V power supply, ideal for embedded projects High efficiency design with low heat generation Compact size suitable for space-constrained applications Drives small speakers for stereo audio output Compatible with Arduino, Raspberry Pi, ESP32, and other audio-enabled projects

TDA 2030A Audio power Amplifier Module Want to increase the audio output capability of your project? Well, then this is the perfect module for you. This module is based on the famous TDA2030A Audio Amplifier Module which is capable of 18-watt power output with very low harmonic distortion. This TDA2030A audio amplifier circuit, often using V-5-pin single in-line plastic package structure. Also check the NE555 Multi-Channel Waveform Generator Module available on Iotcart. Priced at Rs. 465 with an 18% discount from the original Rs. 568, the module operates on a DC input of 6-12V. It features a color ring resistor with values of 1k?, 1m?, 4.7k?, 10k?, 15k?, and 100k?. The module can generate square waves, sawtooth waves, triangle waves, and sine waves, with the waveform output selected by a jumper. Also check TDA8932 digital power amplifier board . It is a compact and efficient board that can deliver 35W of mono audio. It is suitable for a variety of audio applications, including active speakers, DIY projects, and electro-acoustic projects.

4mm Banana Jack Plug Connector Male - Pack of 2- Any Colour Banana Speaker Wire Cable Screw Plugs Connectors are the ideal solution for audio enthusiasts. These banana connectors are suitable for various activities such as charging adapters, speakers, and industrial equipment. The banana socket ensures a tight connection without the need for soldering, thanks to the screw connector fitting. This banana socket male is crafted from durable metal and plastic, these plugs are perfect for use in audio equipment, power testing, and more. We prioritize quality and durability. The 4mm banana socket diameter of the plugs makes them stackable with existing ones and suitable for most speakers. Whether you're a professional in need of reliable connectors or a home audio system user, these banana socket connectors guarantee enhanced connectivity. Say goodbye to shaky connections and hello to better sound. Enhance your sound with this Banana plug socket. Buy Banana connector 4mm now from Iotcart and upgrade your audio experience. Key Features: Screw connector fitting ensures a tight connection without soldering. Crafted from durable metal and plastic materials. Stackable design allows for integration with existing plugs. Compatible with most speaker models. Features a male-to-male connector gender. Available in multiple colors for customization. Applications: Ideal for connecting speakers, amplifiers, receivers, and other audio devices. Suitable for use with charging adapters for various electronic devices. Can be used for connections in industrial settings. Helpful for testing electrical circuits and components. Perfect for enhancing connectivity and sound quality in home entertainment setups.

Official Arduino Zero Micro-Controller Board The Official Arduino Zero Micro-Controller Board is a robust and versatile 32-bit upgrade to the popular Arduino UNO platform. Designed to offer enhanced performance and greater flexibility, the Zero is ideal for both advanced hobbyists and educational environments focused on 32-bit application development. At its core is the powerful Atmel SAMD21 microcontroller, which features a 32-bit ARM Cortex M0+ processor, making it well-suited for a wide range of projects, from simple tasks to complex embedded systems. One of the standout features of the Arduino Zero is the inclusion of Atmel’s Embedded Debugger (EDBG), which eliminates the need for external debugging hardware by providing an onboard debug interface. EDBG also includes a virtual COM port, simplifying bootloader and device programming tasks. With its combination of power, ease-of-use, and professional-grade debugging tools, the Arduino Zero development board is an excellent choice for developers and educators alike. Applications: Span from smart IoT devices Wearable technology High-tech automation Crazy robotics Features: Ideal for IoT Projects: Designed to deliver optimal performance in Internet of Things applications. Educational Friendly: Easy to learn and use—perfect for school and college-level electronics or embedded system projects. Official Arduino Board: Genuine Arduino product ensures quality, reliability, and community support. Fully Equipped: Includes all components needed to support the microcontroller for standalone operation. I2S Audio Interface: Features a two-channel Inter-IC Sound (I2S) interface for digital audio applications. High Clock Speed: Equipped with a fast clock to handle demanding tasks and improve performance. Touch Sensing Capability: Integrated Peripheral Touch Controller (PTC) enables capacitive touch inputs. Arduino Zero Pinout Diagram:

Official Raspberry Pi Model 1 B+ The Raspberry Pi Model 1 B+ is a more powerful version of the original Raspberry Pi, it's perfect for projects that require a bit more power and flexibility. It features a 700 MHz CPU and 512 MB of memory. Has four USB ports, an HDMI connector for connecting to a TV or monitor, and a unique 40-pin header for attaching sensors and other components. Also, It has a jack for audio and video output, as well as interfaces for connecting a camera or display screen. This version of the Raspberry Pi is designed to be easier to use and more efficient. The USB ports are aligned with the edge of the board for a cleaner look, and it has a micro SD slot that’s simpler to handle than the older models. It is ideal for long-term applications as It consumes less power. The sound quality has also increased, and the board's square mounting holes make installation simple. The Raspberry Pi Model B+ is an excellent choice for all of your projects and educational requirements. Shop now for exclusive offers on Raspberry Pi 3B+ ! Check Out our Wide Range of Raspberry Pi Products . Differences between Raspberry Pi Model B+ and Model B: GPIO Pins: Model B+ features 40 pins compared to Model B's 26 pins. USB Ports: The Model B+ has four USB ports, while only two ports on the Model B. SD Card Slot: The Model B+ has a push-push micro SD slot, which replaces the Model B's friction-fit SD slot. Ethernet: Both versions have 100 Base Ethernet, which ensures constant network performance. Power Consumption: Model B+ consumes 0.5 to 1W less power than Model B. Audio Quality: Unlike Model B, Model B+ includes a dedicated low-noise audio power supply. Form Factor: Model B+ includes aligned USB ports, composite video in the 3.5mm jack, and square mounting holes. What is a Raspberry Pi? Key Features: Delivers consistent performance for a wide range of computer tasks. Supports seamless multitasking and effective application management. Allows for the connection of various peripherals. Provides expanded connectivity for sensors, motors, and other electronic components. Allows for simple connection to HD screens for quality video output. Offers stable wired network connectivity for internet and LAN access. Supports both audio output and composite video output. Includes CSI for camera modules and DSI for connecting compatible display screens. Reduces power use by 0.5W to 1W with efficient switching regulators. Maintains compatibility with the first 26 pins of the previous Raspberry Pi models.

PAM 8403 Amplifier Module with Knob PAM8403 is a basic 5V input amplifier board that can drive two 3W + 3W stereo speakers. It’s a great option for anyone looking for a Class-D stereo audio amplifier with a tiny footprint. The user can get high-quality audio reproduction from a stereo input using this amplifier. It also has a unique function in that it can drive speakers directly from the output. . It offers low THD+N, allowing it to achieve high-quality sound reproduction. The new filter-less architecture allows the device to drive the speaker directly, requiring no low-pass output filters, thus saving system cost and PCB area. With the same numbers of external components, the efficiency of the PAM8403 is much better than that of Class-AB cousins. It can extend the battery life, which makes it well-suited for portable applications. This PAM8403 Amplifier module differs from the conventional PAM8403 Amplifier board in this module it allows us to have more control over the output provided by the IC. By control, we mean that this amplifier module board comes with a knob that allows you to adjust the output. The PAM8403 IC provides high-definition sound quality and highlights the benefits of digital chips. The circuit uses the most reasonable peripheral arrangement, and the power supply filter is increased to 470uf. read more : Types of Amplifiers with their Workings Note: Please make sure the power supply is not more than 5.5V and please don't do reverse polarity for "+" and "-", or else, it will burn the board. Applications: Bluetooth Stereo Audio hands free / headsets In robots that speak or generate sounds to indicate activities Portable Speakers LCD Monitors / TV Projectors Arduino or Raspberry Pi Game Machines Speaker Phones