Sound Sensor Module

SmartElex 5V 3A 8 Channel Signal Relay Module The SmartElex 5V 3A 8 Channel Signal Relay Module is a dependable switching solution built to control multiple electrical devices with precision. This 8 Channel Relay Module features eight JY4100F-S-DC5V-C relays, each capable of safely switching loads up to 3A at 120V AC or 24V DC. Designed to operate on a stable 5V supply, it offers individual input triggers and LED indicators for real-time status visibility. With strong electrical isolation and seamless compatibility with Arduino, ESP32, and Raspberry Pi, this 5V relay module is well-suited for automation panels, IoT systems, and complex control applications where reliable multi-channel switching is essential. Applications: Smart home automation (e.g., managing several appliances) Complex industrial automation systems. Robotics projects require several actuators. IoT systems have several relay outputs. Alarms, security, and access control panels Cautions: Use a well regulated 5V supply with adequate current (at least 1A suggested). Ensure that relay load restrictions are not exceeded. To avoid electrical dangers, securely isolate all AC wiring. Maintain a dry, clean, and dust-free atmosphere. Features: An 8-channel relay module with individual control. It operates at 5V DC and has active LOW/HIGH triggers. Each relay can handle 3A at 120V AC or 24V DC. Compatible with Arduino, ESP32, Raspberry Pi, and more platforms. Status LEDs for each channel are used to monitor operation. Fast switching: ≤10 ms operation and ≤5 ms release. Contact resistance of ≤100 mΩ enables stable conductivity. Total power usage is around 2.88W across all channels. High insulation resistance and dielectric strength are essential for safety. Suitable for -40°C to +85°C temperatures.

7Semi DC-DC Buck Converter 7V-40V Input to 5V 5A Output- AP64500 (BO-10188) The 7Semi DC-DC Buck Converter 7V–40V Input to 5V 5A Output – AP64500 (BO-10188) is a high-power voltage regulator module designed to convert higher DC input voltages into a stable 5V output with up to 5A current. Its wide input range makes it suitable for many power sources, including batteries and industrial supplies, where reliable 5V power is needed. Built around the efficient AP64500 synchronous buck converter, this module delivers stable output with low heat and high efficiency, even under heavy load. It is well suited for powering microcontrollers, single-board computers, sensors, and communication modules. Whether you’re building robotics, automation systems, or advanced electronics projects, this buck converter provides dependable and efficient power management. Features: Wide input voltage range: 7V to 40V DC Stable 5V output with up to 5A continuous current High-efficiency synchronous buck converter using AP64500 Low thermal loss and reliable performance under load Compact breakout module for easy project integration Built-in power protection features for safe operation Ideal for microcontrollers, SBCs, IoT and embedded systems Suitable for robotics, automation, and power supply projects

TCS34725 RGB Color Recognition Light Sensor Module The TCS34725 RGB Color Recognition Light Sensor Module is a powerful and reliable RGB light sensor designed to deliver highly accurate color measurements in real-world conditions. Equipped with RGB and Clear light-sensing elements along with an integrated IR blocking filter, this color recognition sensor minimizes infrared interference to provide natural and precise color readings. With an impressive 3,800,000:1 dynamic range and adjustable integration time and gain, it performs exceptionally well even in low-light environments or behind tinted glass. The module features a built-in 3.3V regulator and level shifting, allowing smooth operation with both 3.3V and 5V systems. Its onboard 4150°K neutral LED, controlled via a MOSFET driver, ensures consistent illumination for dependable color detection. Communicating through the I2C interface, it seamlessly integrates with Arduino and other microcontrollers, making it perfect for robotics, sorting systems, smart lighting, and interactive electronics projects. Features: Color Sensing: Detects RGB and clear light for color recognition. Ambient Light Sensing - Adjusts display brightness dependent on the surroundings. Industrial Sorting - Used for automated color-based material sorting. Smart Lighting - Adjusts LED hues based on observed light. Medical Devices - Aids in color analysis and diagnoses. Consumer Electronics - Improves camera and display performance. Agriculture - Measures plant health through light absorption. Applications: Color Detection Ambient Light Sensing Industrial Process Control Food Processing Medical Diagnostics RGB LED Control Consumer Electronics Health and Fitness Devices TCS34725 RGB Color Sensor Pinout: VCC: Power supply (3.3V to 5V) GND: Ground SDA: Serial Data Line (I2C data) SCL: Serial Clock Line (I2C clock) INT: Interrupt output (active low, can be used for threshold alerts)

SmartElex BX604 PIR Motion Sensor Module The SmartElex BX604 PIR Motion Sensor Module is a passive infrared motion detection solution designed to sense human movement by detecting changes in infrared radiation. It helps automate electronic systems by triggering actions only when motion is present, improving efficiency and reducing unnecessary power usage. This module is suitable for students, makers, engineers, educators, and startups who need a dependable motion sensing solution for electronics projects, learning kits, and prototype development. This PIR motion sensor module is widely used in robotics, IoT applications, security systems, and home or industrial automation projects where accurate motion detection is required. It can be easily interfaced with popular development platforms such as Arduino, Raspberry Pi, and ESP32, allowing quick integration into working systems. The wide detection coverage and stable performance make it ideal for applications like motion-activated lighting, alarm systems, smart monitoring devices, and interactive electronic projects. Features: Passive infrared (PIR) sensor for reliable human motion detection Detects movement by sensing changes in infrared radiation Wide detection angle for broader area coverage Long sensing range suitable for security and automation use Low power consumption for battery-operated projects Compatible with Arduino, Raspberry Pi, ESP32, and similar boards

SmartElex Rotation Sensor The SmartElex Rotation Sensor is a digital sensing module designed to detect rotational movement and direction using quadrature output signals. It helps measure rotation accurately without complex mechanical setups, making it useful for tracking motion, speed, or position in electronic systems. This sensor is suitable for students, makers, engineers, educators, and startups who are working on electronics, robotics learning projects, or prototypes that require reliable rotation detection. This rotation sensor is widely used in robotics, automation systems, and IoT projects where monitoring wheel rotation, motor movement, or shaft position is essential. It can be easily interfaced with popular development platforms such as Arduino, Raspberry Pi, and ESP32, allowing quick integration into both experimental and functional setups. Common applications include robot wheel encoders, speed measurement systems, user input controls, and motion-based automation projects, where consistent output and simple integration help streamline development. Note: Refer to User Manual in the ATTACHMENTS section for more info. regd. the product. Features: Digital rotation detection sensor with quadrature output Detects rotational movement and direction accurately Provides reliable signals for speed and position measurement Contactless sensing for long-lasting operation Compatible with Arduino, Raspberry Pi, ESP32, and similar controllers Ideal for robotics, automation, and motion-tracking applications

7Semi SHT40 Temperature & Humidity Sensor Breakout I2C Qwiic SHT40 Breakout (ES-13514) The 7Semi SHT40 Temperature & Humidity Sensor Breakout (I2C Qwiic) is a compact and reliable sensor module designed to measure both temperature and humidity with high accuracy. It is based on the Sensirion SHT40 sensor, making it suitable for modern electronics projects that need precise environmental data. This breakout board supports I2C communication and comes with a Qwiic connector, allowing quick and solder-free connections with microcontrollers like Arduino, ESP32, and Raspberry Pi. Its small size and low power consumption make it ideal for IoT devices, weather monitoring, indoor air quality projects, and learning applications where simplicity and accuracy matter. Features: High-accuracy temperature and humidity sensing using the SHT40 sensor Supports I²C communication for easy integration with microcontrollers Qwiic connector enables quick, solder-free plug-and-play connections Wide measurement range of 0–100% RH and –40°C to +125°C temperature Low-power and compact design, ideal for IoT and battery-powered projects Compatible with Arduino, Raspberry Pi, ESP32, and other development boards SHT40 Board Dimensions

7Semi ENS160 Air Quality Sensor Breakout Board with VOC & eCO₂ Sensing The 7Semi ENS160 Smart Air Quality Sensor Breakout is built for makers, engineers, and automation professionals who need reliable indoor air quality insights. Powered by the ScioSense ENS160, it accurately detects VOCs, eCO₂, TVOC, and AQI levels, giving you a clear picture of the environment you’re working in. Its onboard intelligence takes care of complex signal processing, automatically handling humidity and temperature compensation to deliver stable, real-world-ready readings. With flexible connectivity through I2C and SPI, plus Qwiic support for plug-and-play setup, this breakout integrates effortlessly into air purifiers, smart home systems, building automation, or environmental monitoring devices. Whether you’re improving indoor ventilation or designing a new HVAC solution, the ENS160 offers dependable, research-grade data in a compact and easy-to-use module. Features: Provides multi-parameter air quality measurement, including VOCs, eCO₂, TVOC, and AQI indices for accurate indoor environment assessment. Built-in intelligent processing handles humidity and temperature compensation, baseline correction, and advanced data management for reliable long-term use. Supports both I2C (with Qwiic connectors) and SPI interfaces, ensuring compatibility with a wide range of microcontrollers and embedded systems. Designed to operate in broad environmental conditions from -40°C to +85°C and 5% to 95% RH for consistent performance. Offers jumper-selectable I2C addresses to easily prevent conflicts in multi-sensor installations. Compact and modular build makes it ideal for air purifiers, HVAC systems, smart automation, and environmental monitoring applications.

SmartElex LIS3DH Triple Axis Accelerometer Breakout The SmartElex LIS3DH Triple Axis Accelerometer Breakout is a compact motion sensor module designed to measure acceleration along the X, Y, and Z axes. It helps users detect tilt, vibration, movement, and orientation, making it ideal for students, makers, educators, and engineers working on motion-responsive electronics. This lis3dh accelerometer offers a beginner-friendly way to collect movement data without complex circuitry, allowing users to focus on learning, building prototypes, or integrating sensors into real-world applications. This 3-axis accelerometer sensor is commonly used in robotics, handheld electronics, IoT devices, gesture recognition systems, and automation projects that require accurate motion sensing. It integrates smoothly with Arduino, Raspberry Pi, ESP32, and other microcontroller platforms, making programming and hardware connections straightforward. With reliable output and easy compatibility, the SmartElex LIS3DH sensor is a practical choice for prototyping, academic learning, DIY electronic builds, and product development where consistent acceleration measurement is required. Features: Triple-axis accelerometer for detecting movement and orientation Measures acceleration along X, Y, and Z axes with reliable output Compact breakout board for easy integration in embedded projects Compatible with Arduino, Raspberry Pi, ESP32, and similar platforms Ideal for robotics, IoT devices, gesture control, and automation projects Great for prototyping, STEM education, and motion-based product development

7Semi ACS772 50A 200KHz Current Sensor, Automotive Grade The 7Semi ACS772 50A 200 kHz Current Sensor is a high-performance current sensor module designed to accurately measure both AC and DC currents up to 50 A with a wide frequency response. Built with automotive-grade components, it delivers dependable and precise current sensing in demanding environments where stability and safety are critical. This sensor addresses the common challenge of obtaining accurate current measurements in power electronics, motor control, and battery systems, helping you monitor and protect circuits effectively. With its broad bandwidth of up to 200 kHz and robust design, the ACS772 current sensor module offers fast response, excellent linearity, and low noise, making it suitable for a wide range of applications. It’s perfect for students and hobbyists working on robotics or power monitoring, as well as professionals developing automotive systems, industrial equipment, and high-speed power electronics. The module’s ease of integration and reliability make it a practical choice for projects requiring real-time current feedback and protection. Features: High-accuracy current sensing with ±2.1% lifetime accuracy across temperature ranges Supports AC and DC current measurement for demanding power applications Ultra-low 100 µΩ internal conductor resistance for minimal power loss Reinforced galvanic isolation for safe high-side current monitoring Excellent noise immunity with advanced amplifier and filtering design Factory-trimmed gain and offset for consistent, reliable performance Compact, automotive-grade package for easy integration and mounting

7Semi PT100 RTD 3-Wire Temperature Sensor Probe The 7Semi PT100 RTD Temperature Sensor Probe is built for engineers and industrial users who need dependable, high-accuracy temperature monitoring across a wide operating range. Using a premium JUMO PCA 1.2003.1EG platinum-chip element, this probe follows the IEC 60751:2008 Class F0.15 (Class A) standard, ensuring precise and stable readings from -70°C to +300°C. Its platinum resistance design offers exceptional repeatability with minimal drift, making it a reliable choice for long-term process monitoring and industrial automation systems. Designed with a durable 2-inch stainless steel probe and a 3-metre insulated 3-wire cable, this PT100 sensor is ideal for harsh, wet, or corrosive environments. Whether used in chemical plants, HVAC systems, laboratory setups, industrial machinery, or temperature-controlled processing units, it delivers consistently accurate performance. This combination of precision, durability, and affordability makes it a smart upgrade for anyone looking for a high-accuracy industrial temperature sensor. Features: Designed with a wide operating range from -70°C to +300°C, making it suitable for demanding industrial and laboratory applications. Built with a JUMO PCA platinum-chip element that meets IEC 60751:2008 Class F0.15 (Class A) standards for high accuracy and stability. Equipped with a 2-inch stainless steel probe, offering long-lasting durability even in harsh or corrosive conditions. Comes with a 3-metre insulated 3-wire cable, allowing easy installation in remote or hard-to-reach areas. Utilises platinum resistance technology for excellent repeatability, low drift, and consistent output over time. Features a waterproof design, enabling reliable operation in moisture-rich environments. Offers a cost-effective, high-reliability solution suitable for automation systems, industrial processes, and precision monitoring tasks.

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

Cytron ESP8266 WiFi Shield for Arduino with WROOM-02 Module The Cytron ESP8266 WiFi Shield is a beginner-friendly, plug-and-play solution that makes adding WiFi connectivity to Arduino projects incredibly easy. Powered by the reliable ESP8266 WROOM-02 module, this shield eliminates the wiring complications and level-shifting issues commonly faced when using standalone ESP modules. With preloaded Cytron_ESP_AT Firmware V2.2.0, onboard 3.3V regulation, selectable UART pins, and support for AT-command control, it is the perfect choice for IoT applications, wireless sensor systems, home automation, and connected electronics. Designed with the Arduino R3 layout, this WiFi shield works seamlessly with Arduino UNO, Maker UNO, CT-UNO, CT-ARM, and various compatible boards. It also offers direct programming access to the ESP8266, breakout I/O pins, and optional microSD card support for data logging. Whether you're uploading custom firmware or using AT commands for WiFi communication, the Cytron ESP8266 WiFi Shield delivers stable wireless performance, strong signal output, and unmatched ease of integration, making it ideal for both beginners and advanced IoT developers. Features: Compatible with Arduino R3 layout boards including Maker UNO, CT-UNO, CT-ARM, Arduino UNO R3, and Arduino Leonardo. Preassembled with ESP8266 WROOM-02 module and flashed with Cytron_ESP_AT V2.2.0 firmware. Onboard 3.3V regulator capable of supplying up to 500mA for stable WiFi operation. Selectable UART/Serial communication via mini jumpers (USB, hardware serial, software serial options). Supports 802.11 b/g/n, Wi-Fi Direct (P2P), Soft-AP mode, and full TCP/IP protocol stack. Integrated TR switch, balun, power amplifier, LNA, PLLs, regulators, and 32-bit CPU. +19.5 dBm output power for strong wireless range. Breakout pins available for programming or full I/O access of WROOM-02. Includes optional microSD slot for data logging and local storage. Each shield is fully assembled and tested before shipping.

SmartElex MicroB USB Breakout Board The SmartElex MicroB USB Breakout Board is a compact adapter board designed to make it easy to access the pins of a Micro-B USB connector for prototyping, development, and testing. It breaks out the USB port into simple pin headers, allowing users to interface USB power and data lines with custom circuits, breadboards, and microcontroller boards. This USB breakout board is ideal for students, makers, educators, and engineers who need a quick and reliable way to add USB connectivity to their electronics projects without designing a custom PCB. This board is commonly used in robotics, IoT applications, embedded system development, device repair, and hardware prototyping where USB access is required for powering circuits or transferring data. It works smoothly with platforms like Arduino, Raspberry Pi, and ESP32, enabling fast integration with both beginner and advanced projects. With its straightforward layout and sturdy connector design, the SmartElex MicroB USB Breakout Board is a practical and efficient choice for workshops, prototyping labs, and DIY electronic builds that require stable Micro-B USB interfacing Features: Micro-B USB connector broken out to easy-to-use header pins Simplifies USB power and data access for prototyping and testing Supports quick integration with breadboards and custom circuits Compatible with Arduino, Raspberry Pi, ESP32, and microcontrollers Ideal for DIY repairs, IoT projects, and embedded hardware development Compact and beginner-friendly design for rapid project setup

7Semi MCP9808 I2C Temperature Sensor Breakout The 7Semi MCP9808 I2C Temperature Sensor Breakout is a precision I2C temperature sensor module designed to deliver accurate and reliable temperature measurements with minimal effort. Built around the high-accuracy MCP9808 temperature sensor IC, this breakout board provides easy digital temperature sensing through a standard I2C interface, making it ideal for projects where precise environmental monitoring is essential. It solves the challenge of interfacing analog temperature sensors with microcontrollers by offering a simple digital communication method that eliminates the need for complex calibration. This compact sensor module is highly compatible with popular development platforms like Arduino, Raspberry Pi, and other microcontrollers, offering stable performance and low power consumption. With its high accuracy and straightforward interface, it’s perfect for students, hobbyists, and professionals working on weather stations, HVAC systems, data loggers, thermal control systems, and indoor environmental monitoring projects. Its robust design ensures dependable readings across a wide range of applications, reducing development time and improving overall system reliability. Features: High-accuracy MCP9808 sensor IC with ±0.25 °C typical precision Wide operating temperature range from –40 °C to +125 °C High-resolution temperature readings with 0.0625 °C resolution Supports 2.7V to 5.5V power and logic levels for flexible compatibility I²C interface allows connection of up to 8 sensors on a single bus Compact breakout board for easy integration in embedded projects

Cytron UNO Special Edition – Arduino-Compatible Board with Side Connectors The Cytron UNO Special Edition (CT-UNO-SE) is a fully Arduino-compatible development board designed for makers, students, and hobbyists who need reliable performance for DIY electronics and robotics projects. Built around the ATmega328P microcontroller, this board offers the familiar Arduino UNO experience while adding enhanced stability with the FTDI FT231X USB-to-Serial chip, ensuring smoother programming and communication. Whether you're prototyping sensors, robotics circuits, or automation systems, this board delivers a dependable and beginner-friendly platform for all your microcontroller learning needs. What makes the CT-UNO-SE stand out is its unique side connectors, allowing it to be stacked on top of or beneath Arduino shields, giving you maximum flexibility while building layered circuits or compact embedded systems. With full Arduino UNO R3 shield compatibility, 14 digital I/O pins, 6 analog inputs, and both 5V and 3.3V regulated outputs, this special edition board combines convenience, versatility, and long-term durability - all wrapped into a sleek white PCB that makes your projects look clean and professional. Features Built with the ATmega328P microcontroller paired with the Optiboot bootloader for faster program uploads. Equipped with the FTDI FT231X USB interface, offering stable and reliable serial communication. Supports a wide DC input range of 7–15V, suitable for most maker power setups. Includes a 1A 5V regulator and 500mA 3.3V regulator for powering sensors and modules. Offers 14 digital I/O pins (6 PWM) and 6 analog inputs for versatile interfacing. Fully R3 shield compatible with special side connectors for flexible stacking. Features 32KB Flash memory, 2KB SRAM, and 1KB EEPROM for program storage. Comes with easily visible TX, RX, power, and pin-13 LEDs placed on the board edge. Utilizes a durable USB Micro-B connector on a clean white PCB. Dimensions