RS-485 Breakout Board for XIAO Converts UART to RS-485 Signals -Seeed Studio

7Semi DC Buck Converter Breakout 5V 2A Out (AP62301) (BO-10133) The 7Semi DC Buck Converter Breakout 5V 2A Out (AP62301) is a small power module that converts higher DC input voltages into a steady 5V output with up to 2A current. It allows you to power 5V-based electronics from a wide range of DC power sources such as batteries and adapters. This makes it perfect for projects that need a reliable 5V supply. Built with an efficient synchronous buck converter design, this module delivers stable power while keeping energy loss and heat to a minimum. Its compact size makes it easy to add to space-limited electronics projects like IoT devices, microcontroller boards, and portable systems. Whether you’re building sensors, development boards, or embedded systems, this buck converter gives you a simple and dependable way to get 5V power. Features: Provides a stable 5V output with up to 2A continuous current Accepts a wide range of DC input voltages for flexible power sources Efficient synchronous buck converter design for low power loss Low heat generation for cool and reliable operation Compact breakout board for easy integration and prototyping Ideal for powering 5V microcontrollers, sensors, and IoT devices Perfect for embedded systems, portable electronics, and hobby projects

SmartElex 74HC595 Shift Register Breakout Module The SmartElex 74HC595 Shift Register Breakout Module is a practical solution for expanding digital outputs while using minimal microcontroller pins. This shift register board uses the SOIC version of the 74HC595 IC to clock serial data and latch it into stable parallel outputs, making it perfect for LED control, motor drivers, and other digital applications. With all pins of the 74HC595 IC breakout accessible through standard 0.1″ headers, integration into breadboards or PCBs is simple. The thoughtfully placed Serial In and Serial Out pins allow easy cascading of multiple boards, enabling scalable I/O expansion without complex wiring. Features: The 74HC595 Shift Register IC allows for easy extension of I/O pins on microcontrollers. Data Clocking and Latching: Effectively handle multiple outputs with little I/O use. Standard 0.1" headers provide easy integration with access to all pins. Chaining Capability: The serial in and out pins allow many boards to be connected together. Compact Design: A plan that saves space and is suitable for a variety of applications. Versatile Applications: Suitable for controlling LEDs, motors, and other devices.

SmartElex ILD213T Opto-isolator Breakout Board SmartElex ILD213T Opto-isolator Breakout Board is designed to provide reliable electrical isolation between two circuits, helping protect sensitive components from voltage spikes, noise, and ground loop issues. This opto isolator board uses the ILD213T optocoupler to safely transfer signals while keeping high-voltage and low-voltage sections separated. It is a practical solution for students, hobbyists, engineers, educators, and startups who need to interface microcontrollers with external hardware without risking damage to their development boards or sensors. This ILD213T optoisolator module is well-suited for robotics, IoT systems, industrial automation, and embedded prototyping where signal integrity and safety are important. It integrates easily with platforms like Arduino, Raspberry Pi, and ESP32, enabling secure communication with relays, motors, sensors, and noisy electrical equipment. By using this electrical isolation board, users can build more stable and durable projects, ensuring consistent performance and reduced troubleshooting due to interference or short circuits. Features: Provides electrical isolation between input and output circuits Based on the ILD213T optocoupler for reliable signal transfer Protects microcontrollers from voltage spikes and noise Helps prevent ground loops and interference issues Compatible with Arduino, Raspberry Pi, ESP32, and similar boards Ideal for robotics, IoT, automation, and industrial interfaces

SmartElex RS-485 (SP3485) Transceiver Breakout Module The SmartElex RS-485 (SP3485) Transceiver Breakout Module is a compact and reliable solution for enabling RS485 module based communication in electronics and automation projects. Designed to simplify long-distance and noise-resistant data transfer, it helps overcome the limitations of standard serial communication in industrial and field environments. This module is ideal for students, hobbyists, engineers, educators, and startups working on projects that require stable, differential signal communication for robotics, industrial controls, or embedded systems. With support for rs485 transceiver based networking, this board makes it easy to add rs485 communication to microcontrollers and development boards like Arduino, Raspberry Pi, and ESP32. Its breakout form factor allows quick integration into prototypes, IoT setups, and automation systems where devices need to communicate over long cables and noisy electrical environments. Whether used for sensor networks, building management systems, or PLC interfacing, it offers dependable performance that helps users build scalable and robust communication links without unnecessary complexity. Features: Enables RS485 module communication for long-distance, noise-resistant data transfer Based on the SP3485 transceiver for stable rs485 transceiver performance Supports differential signal communication ideal for industrial and field environments Easy-to-use breakout format for quick prototyping and integration Works with popular controllers such as Arduino, Raspberry Pi, and ESP32 Helps implement multi-node networks over twisted pair cabling Compact design suitable for compact robotics, IoT, and automation projects Provides reliable rs485 communication without complex wiring or circuitry

SmartElex RJ45 magjack Connector Breakout Board The SmartElex RJ45 MagJack Connector Breakout Board is a convenient module designed to make Ethernet connectivity accessible for custom electronics projects. It breaks out an RJ45 Ethernet jack with integrated magnetics, allowing users to interface network signals with development boards, prototypes, and embedded circuits without needing to design their own connector layout. This board is ideal for students, makers, engineers, educators, and startups who want to experiment with wired networking, communication protocols, or LAN-based control in robotics and IoT applications. This RJ45 MagJack breakout board is commonly used in IoT networks, automation systems, communication modules, and hardware prototypes that require Ethernet access for data transfer or device control. It can be used with platforms like Arduino, Raspberry Pi, ESP32, and other microcontroller boards that support Ethernet interfacing through additional hardware or modules. With reliable connectivity and a beginner-friendly breakout design, the SmartElex RJ45 MagJack Connector Breakout Board is a practical choice for testing, learning, and developing Ethernet-enabled electronic devices and embedded systems. Features: Breaks out an RJ45 MagJack Ethernet connector to easy-to-use pins Simplifies Ethernet interfacing for prototyping and custom circuits Integrated magnetics for stable network signal handling Compatible with Arduino, Raspberry Pi, ESP32 (with Ethernet support) Ideal for IoT, automation, LAN communication, and embedded systems Great for testing, learning, and building Ethernet-enabled devices

SmartElex DS3232 RTC (Real Time Clock) Breakout Module The SmartElex DS3232 RTC Breakout Module is a reliable DS3232 RTC module designed for accurate and long-term timekeeping in electronics and IoT projects. With an integrated crystal oscillator and temperature-compensated circuitry, it maintains precise date and time even under changing environmental conditions. This real-time clock module supports I²C communication, making it simple to interface with popular microcontrollers for applications such as data logging, digital clocks, alarms, and automation systems. A coin cell battery backup keeps the clock running during power loss, while its low power consumption and stable performance make it ideal for projects that demand exact timing and consistent operation over years. Features: Integrated crystal for accurate timekeeping. Temperature correction to reduce drift. Compact design that works well with breadboards. Works with I²C interface for microcontroller integration. Includes a coin cell battery backup for uninterrupted operation. Fully constructed and tested module ready for speedy deployment. Compatible with Arduino, Raspberry Pi, and other platforms. Low power usage results in longer battery life.

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 BME680 Temperature, Humidity, Pressure & Air Quality Sensor Breakout with Qwiic Interface The 7Semi BME680 Environmental Sensor Breakout is a compact yet powerful module designed for applications that require accurate measurement of temperature, humidity, pressure, and indoor air quality. Built around the trusted Bosch BME680 sensor, it provides dependable multi-parameter environmental data in real time, making it ideal for IoT projects, smart home automation systems, and portable environmental monitoring devices. Its efficient gas sensor intelligently detects VOC levels, helping you assess indoor air quality with ease. Engineered for universal compatibility, this breakout includes both a voltage regulator and level shifter, enabling seamless integration with 3.3V and 5V microcontroller platforms such as Arduino and Raspberry Pi. The Qwiic connector and I2C/SPI support ensure quick setup without messy wiring, while its compact size makes it perfect for wearables and space-constrained builds. With low-power operation, stable readings, and selectable I2C addresses, this module provides developers with a simple and reliable way to enhance environmental sensing in modern embedded projects. Features: Provides accurate measurement of temperature, humidity, pressure, and VOC-based air quality, making it an all-in-one environmental sensor solution. Supports I2C and SPI communication, ensuring smooth integration with Raspberry Pi, Arduino, ESP32, and other development boards. Includes selectable I2C addresses (0x76/0x77) to allow multiple sensors on a single bus without conflicts. Features a built-in voltage regulator and level shifting circuitry, allowing safe use with both 3.3V and 5V systems. Designed with low power consumption, suitable for long-term, battery-powered, or portable applications. Comes in a compact 19×19 mm breakout form factor, perfect for handheld devices, IoT wearables, and mini weather stations. Provides stable VOC readings after a short burn-in time, ensuring reliable indoor air quality measurements.

7Semi MAX31855 K-Type Thermocouple Amplifier Breakout The 7Semi MAX31855 Thermocouple Amplifier Breakout is designed for creators, engineers, and industrial users who need reliable and highly accurate temperature readings from extreme environments. With its advanced MAX31855 converter IC, this breakout allows effortless digital temperature measurement using K-type thermocouples, making it a powerful choice for applications like 3D printing, HVAC monitoring, and high-heat industrial systems. The onboard cold-junction compensation ensures precision by automatically correcting any thermal offsets at the connector. Supporting temperatures from -270°C to +1372°C, it delivers 14-bit resolution with smooth 0.25°C read steps, providing dependable, noise-free readings for sensitive processes. Built-in fault detection helps identify open circuits or shorts, making the system easier to troubleshoot and safer for continuous operation. With its SPI-based digital interface and compatibility with 3.3V/5V logic microcontrollers, the module integrates cleanly with Arduino, ESP32, Raspberry Pi, and industrial controllers. Features: Supports a wide thermocouple measurement range from –270°C to +1372°C, making it suitable for extreme heat and cryogenic applications. Provides 14-bit high-resolution output with precise 0.25°C increments for accurate temperature monitoring. Includes built-in cold-junction compensation, ensuring reliable compensation for ambient temperature fluctuations. Offers a simple SPI digital interface, requiring minimal I/O pins for easy integration with most microcontrollers. Compatible with multiple thermocouple types including K, J, N, T, S, R, and E, providing versatility in system design. Features fault detection for open thermocouples and shorts to VCC/GND to enhance system safety. Supports both 3.3V and 5V logic levels, ensuring broad compatibility across development boards.

SmartElex USB Mini-B Breakout Board The SmartElex USB Mini-B Breakout Board is a compact adapter board designed to easily access the pins of a USB Mini-B connector for prototyping and development. It converts the connector into simple solderable or plug-and-play pins, helping users interface USB connections with custom circuits, development boards, and DIY electronics. This USB breakout board is ideal for students, hobbyists, engineers, and educators who need a reliable way to add USB connectivity without designing a custom PCB. This USB Mini-B adapter board is commonly used in robotics, IoT projects, firmware development, sensor interfacing, and power input for microcontroller systems. It integrates smoothly with platforms like Arduino, Raspberry Pi, and ESP32 where USB data or power access is needed. With its straightforward layout and beginner-friendly design, the SmartElex USB Mini-B Breakout Board is a practical choice for prototyping, repairing devices, or building custom hardware that requires a stable USB Mini-B interface. Features: USB Mini-B connector broken out to easy-to-use pins Simplifies USB connection for prototyping and DIY projects Ideal for adding USB power or data lines to custom circuits Beginner-friendly design suitable for learning and development Works with Arduino, Raspberry Pi, ESP32, and microcontroller boards Useful for repairs, testing, and hardware integration in embedded projects

7Semi DC-DC Buck Converter 5V 3A Out - MP2338 (BO-10182) The 7Semi DC-DC Buck Converter 5V 3A Out – MP2338 (BO-10182) is a compact power module designed to step down higher DC voltages to a stable 5V output with up to 3A current. It provides reliable and efficient power for electronics that require a steady 5V supply, such as microcontrollers, sensors, and development boards. Built around the MP2338 step-down converter, this module offers high efficiency and stable performance while minimizing heat and power loss. It supports a wide input voltage range and includes built-in protection features for safe operation. Whether you’re working on embedded systems, IoT devices, or custom electronics projects, this buck converter makes power management simple and dependable. Features: Boosts power efficiency with a high-performance MP2338 buck converter Provides a stable 5V output at up to 3A for reliable powering Wide input voltage range, compatible with various DC sources Compact breakout module for easy PCB or project integration Built-in protection features for safe and stable operation Ideal for microcontrollers, sensors, IoT boards, and embedded systems

SmartElex HTU21D-F Temperature and Humidity Sensor with Breakout Board The SmartElex HTU21D-F Temperature and Humidity Sensor with Breakout Board is a compact and reliable temperature and humidity sensor designed for accurate environmental monitoring. It helps users measure ambient temperature and humidity digitally with stable output, making it suitable for students, makers, educators, and engineers working on sensing and monitoring applications. This digital temperature and humidity sensor is ideal for those who want dependable readings without complex circuitry, especially in learning, testing, and early product development environments. This I2C digital humidity sensor is widely used in IoT systems, weather monitoring projects, automation setups, and data logging applications where consistent environmental data is required. It integrates easily with popular development platforms such as Arduino, Raspberry Pi, and ESP32, allowing quick setup and smooth communication through the I2C interface. With its breakout board design and reliable performance, the SmartElex HTU21D-F sensor is well suited for prototyping, robotics projects, and educational labs looking for a practical alternative to traditional sensors like SHT15 breakout boards. Features: Digital temperature and humidity sensor with stable and accurate readings I2C interface for simple and reliable data communication Compact breakout board for quick prototyping and testing Easy to use with Arduino, Raspberry Pi, and ESP32 platforms Suitable for IoT, automation, and environmental monitoring projects Ideal replacement option for older sensors like SHT15 breakout boards

Seeed Studio XIAO ESP32S3 Sense – Wi-Fi, BLE & AI Camera Board If you want a small but powerful development board, pick the Seeed Studio XIAO ESP32S3 Sense. It is ideal for IoT and embedded machine-learning projects. This seeed studio ESP32 board has a powerful Xtensa processor ESP32-S3R8 SoC that provides dependable 2.4GHz Wi-Fi and Bluetooth BLE 5.0. It has an OV3660 smart camera sensor board for crisp 1600*1200 quality photos and a built-in digital microphone for voice detection and audio recognition. You'll love the 8MB PSRAM and 8MB FLASH, plus an SD card slot for up to 32GB of extra storage. It supports battery charging, making it great for portable projects, and it’s versatile with its wide range of interfaces. The XIAO ESP32S3 Sense also offers pre-trained AI models and no-code deployment through SenseCraft AI. Despite its powerful features, it maintains the classic thumb-sized form factor of the XIAO family. This board is a fantastic choice for your next project! Features: Features a powerful ESP32S3 32-bit dual-core processor. It supports Arduino and MicroPython. Includes a detachable OV3660 camera for 1600*1200 resolution. Includes an integrated digital microphone. Measuring just 21 x 17.5mm. Has 8MB PSRAM, 8MB FLASH, and an SD card slot for up to 32GB of memory. Supports 2.4GHz Wi-Fi and BLE with a 100m+ range using a U.FL antenna. Provides pre-trained AI models from SenseCraft AI for no-code deployment. Camera & ML Demo: Sample Projects DIY Face Detection Camera : Use the XIAO ESP32S3 Sense built-in camera and on-board ML support to detect faces, capture snapshots, and send alerts over WiFi. Smart Door Entry Monitor : Combine the camera with a PIR sensor to capture entry events, log timestamps, and stream snapshots to a dashboard. Voice and Camera Surveillance : Use the digital microphone and camera together to detect sound and motion, then record short clips or trigger notifications. Object Classification Station : Run small image classification models on the S3 Sense to identify objects on a workbench or conveyor belt and log results to local storage or the cloud. Portable Field Camera Node : Deploy the board with battery power and SD storage to capture and store images in remote locations for later analysis. Comparison: C3 vs S3 Sense Feature XIAO ESP32-C3 XIAO ESP32S3 Sense Processor ESP32-C3 single core, up to 160 MHz ESP32-S3 dual core, up to 240 MHz Memory Lower flash and no PSRAM on most variants Includes PSRAM and larger flash, microSD support on some SKUs Camera No built-in camera Built-in OV camera module and digital microphone On-device ML Limited for tiny models Better suited for vision and audio ML tasks Ideal Use Cases Low power IoT nodes, BLE peripherals, simple sensors AI camera projects, voice and vision prototypes, edge ML demos Form Factor XIAO compact size XIAO compact size with camera and sensor additions Related Products & Modules XIAO Series Collection IoT Sensors Collection Tutorial : Build a DIY Face Detection Camera Use the XIAO ESP32S3 Sense, attach power and optional microSD card, flash a sample face detection sketch using Arduino or MicroPython, and configure WiFi to stream or upload detection events to your dashboard. For best results use lightweight models optimized for the S3 Sense and test in varied lighting conditions. Suggested steps: Prepare hardware: XIAO ESP32S3 Sense, power source, optional microSD, and a PIR sensor if needed. Install toolchain: Arduino IDE or MicroPython firmware and required libraries for camera and ML inference. Load sample code: run a face detection example, adjust model thresholds and frame size for performance. Configure output: save snapshots to microSD or push events to a dashboard via MQTT or HTTP. Test and tune: iterate on model size, resolution, and detection thresholds for reliable results. Application: Speech recognition Video monitoring Wearable devices Image processing Smart homes Low-power (LP) networking Rapid prototyping Health monitoring Education

7Semi BME688 Environmental Sensor Nano Breakout with 2.54mm Pitch Header The 7Semi BME688 Environmental Sensor Nano Breakout with 2.54mm Pitch Header is a versatile and high-precision environmental sensor designed for modern monitoring applications. Built around Bosch’s advanced BME688, it accurately tracks temperature, humidity, air pressure, and gas levels, helping you gain meaningful insights into environmental conditions. Its compact nano form factor and I2C interface make integration simple with Arduino, Raspberry Pi, and other development boards. Whether you’re building a smart home system, an industrial monitoring setup, or an environmental research project, this environmental monitoring sensor delivers dependable performance in a user-friendly design. Features: AI-Enhanced Gas Sensing: Identifies dangerous gasses with exceptional accuracy. Comprehensive Monitoring: A single sensor measures numerous essential environmental factors. Flexible Interface: I2C connectivity enables seamless interaction with microcontrollers. Compact design: The nano breakout board is ideal for projects with limited space. 3.3V Operating Voltage: Suitable for a wide range of development boards. Gas sensor sensitivity, selectivity, and data rate can all be adjusted to meet your individual application requirements.

SmartElex Atmospheric Sensor Breakout – BME280 Temperature, Humidity & Pressure Sensor Module The SmartElex Atmospheric Sensor Breakout is a compact and reliable module designed to measure temperature, humidity, and air pressure with high accuracy. Built around the powerful BME280 sensor, this 3-in-1 sensor module makes it easy to monitor environmental conditions in real time. Perfect for weather stations, IoT systems, and smart home devices, this environmental sensor breakout delivers precise readings while consuming very little power. It supports both I2C and SPI communication interfaces, making it simple to connect with popular boards like Arduino, ESP32, or Raspberry Pi. Whether you’re building an automation project or a DIY weather monitor, this temperature, humidity, and pressure sensor breakout provides reliable performance and easy integration. It’s a great choice for makers, students, and developers who want accurate environmental data in a small and efficient module. Features: 3-in-1 Environmental Sensor: Accurately measures temperature, humidity, and barometric pressure using the BME280 sensor. High Precision Readings: Provides stable and accurate data for weather monitoring and environmental analysis. I2C & SPI Compatible: This I2C SPI environmental sensor module easily interfaces with Arduino, ESP32, Raspberry Pi, and other microcontrollers. Compact Design: Small and lightweight, making it perfect for embedded systems, IoT devices, and portable applications. Low Power Consumption: Efficient sensor design ensures reliable long-term use in battery-powered projects. Easy to Integrate: Ideal for beginners and professionals working on DIY weather stations, home automation, or environmental monitoring systems.