7SEMI PT100 RTD Temperature Sensor Probe 2-wire 1m -70~300C The 7SEMI PT100 RTD Temperature Sensor Probe 2-wire 1 m (-70 ~ 300°C) (ES-13519) is a reliable temperature sensor designed to deliver accurate and stable readings across a wide temperature range. It uses a platinum PT100 RTD element, which is well known for precision and long-term consistency, making it suitable for both learning and professional applications. The sensor comes with a 1-meter cable and a sturdy stainless-steel probe that can handle demanding environments. Its simple 2-wire design makes it easy to connect with temperature controllers, data loggers, and microcontroller-based systems. Whether you’re working on industrial monitoring, laboratory experiments, or electronics projects, this PT100 probe offers a good balance of accuracy, durability, and ease of use. Features: Uses a PT100 platinum RTD element for accurate and stable temperature measurement Wide operating temperature range from -70°C to 300°C 2-wire configuration for simple and reliable connectivity Stainless steel probe for durability and long service life Comes with a 1-meter insulated cable for flexible installation Suitable for industrial, laboratory, and electronics projects Provides consistent readings over time with minimal drift

7Semi RS485 to UART Transceiver Breakout Board - BL3085A The 7Semi RS485 to UART Transceiver Breakout Board – BL3085A is a compact and efficient solution for reliable serial communication, designed to convert UART signals to RS-485 with high stability and low power consumption. This RS485 to UART Transceiver supports data rates up to 250 kbps and features a slew-rate-controlled driver that minimizes electromagnetic interference and prevents signal reflections, even with improper cable termination. As a Low Power RS485 Module, it allows up to 256 devices to communicate on a single RS-485 bus thanks to its high receiver input impedance. The board is built for durability with ±10 kV ESD protection and offers flexible connectivity through a 3-pin terminal block and standard 2.54 mm pin header, making it a dependable choice for industrial automation, building management systems, embedded networking, and IoT communication applications. Features: High-Speed Data Transmission: Enables reliable data transfer at rates of up to 250kbps, eliminating communication mistakes. Electromagnetic Interference Reduction: The slew-rate-limited driver reduces EMI and signal reflections for increased stability. Multiple Transceiver Support: The high input impedance allows for flawless operation with up to 256 transceivers on the same RS-485 bus. Built-in electrostatic discharge prevention (±10kV) protects components against voltage spikes. Flexible Connectivity: Includes a 3-pin terminal block and 2.54mm pin headers for simple integration into breadboards and wiring systems. Compact and Sturdy Design: A durable yet lightweight design suitable for industrial and embedded applications. Applications: Industrial Automation & Control Systems Building Management & HVAC Controls Data Acquisition & Monitoring Systems Embedded Networking Solutions IoT & Smart Device Communication

7Semi SC18IM704 UART to I2C Bus Bridge Breakout Board The 7Semi SC18IM704 UART to I2C Bus Bridge Breakout Board is a compact and efficient UART to I2C bridge converter designed to simplify communication between UART-based microcontrollers and I2C peripherals. It enables reliable protocol conversion with UART speeds of up to 460.8 kbit/s, while the integrated 256-byte FIFO buffer minimizes data loss during high-speed transfers. Using an easy-to-implement ASCII message protocol, developers gain precise control over I2C bus sequences, including timing and arbitration. With additional user-programmable GPIO pins, this board is well-suited for embedded systems, industrial control, and IoT applications where UART and I2C interfaces must work together seamlessly. Features: High-Speed Communication: Supports UART baud rates of up to 460.8 kbit/s and a 256-byte FIFO for efficient data processing. User-Friendly Interface: Communicates with the host MCU via conventional RX and TX pins, making integration into systems straightforward. I2C Protocol Control: The ASCII message protocol provides full control over I2C-bus sequences, including protocol, arbitration, and timing. Industrial Applications: Ideal for communication bridges, automation control, and I2C bus support in a variety of industrial configurations. Configurable GPIO Pins: Provides multiple user-configurable GPIO pins to meet unique application requirements.

7Semi SGP40 VOC Air Quality Sensor Breakout with Qwiic I2C Interface The 7Semi SGP40 VOC Air Quality Sensor Breakout is designed for creators, engineers, and HVAC professionals who need accurate and dependable indoor air quality measurement. Built around Sensirion’s advanced SGP40 sensor, it detects a wide range of volatile organic compounds with high sensitivity, making it ideal for smart home automation, air purifiers, and environmental monitoring projects. Its compact 19 x 19 mm footprint and low power consumption make it an excellent fit for battery-powered devices and space-constrained applications. With its digital I2C interface and compatibility with both 3.3V and 5V systems, this breakout offers effortless integration with popular microcontroller platforms. The built-in VOC Index algorithm translates raw sensor data into an easy-to-understand metric, helping users track real-time changes in indoor air quality. Whether you're building a DIY sensor hub or upgrading an advanced HVAC system, this VOC sensor module provides reliable, fast, and consistent performance. Features: High-performance SGP40 sensor capable of detecting a broad spectrum of volatile organic compounds for precise indoor air quality monitoring. Fully digital 16-bit output with on-chip humidity compensation to ensure consistent and accurate readings in varying environments. Wide supply compatibility with 3.3V and 5V systems, making it suitable for Arduino, Raspberry Pi, ESP32, and similar controllers. Sensirion VOC Index algorithm interprets raw VOC events and provides actionable, human-readable VOC Index values. Ultra-compact 19 × 19 mm PCB with low heat emission for stable humidity and temperature readings. Low average power consumption down to 6 mW, enabling long-life battery-powered applications. Fast response time under 10 seconds, ensuring quick detection of changes in indoor pollutant levels. Board Dimensions: Arduino I2C Connection Diagram:

7Semi SGP40 VOC Sensor Breakout for Indoor Air Quality 2.54mm Pitch (ES-12201) The 7Semi SGP40 VOC Sensor Breakout for Indoor Air Quality (ES-12201) is a compact sensor module designed to monitor indoor air quality by detecting volatile organic compounds (VOCs). It uses the reliable Sensirion SGP40 sensor, which helps track changes in air quality and provides useful data for healthier indoor environments. This breakout board features a standard I2C interface and 2.54 mm pitch pins, making it easy to connect with popular microcontrollers like Arduino, ESP32, and Raspberry Pi. Operating at low power and designed for simple integration, it is ideal for air quality monitors, smart home devices, and indoor environmental sensing projects. Features: Uses the Sensirion SGP40 sensor for reliable VOC detection Measures volatile organic compounds (VOCs) to assess indoor air quality I2C digital interface for easy connection with microcontrollers Standard 2.54 mm pitch pins for breadboard and prototyping use Low-power operation suitable for battery-powered and IoT projects Works with Arduino, ESP32, Raspberry Pi, and other development boards

7Semi SGP41 VOC Sensor Breakout Board for Indoor Air Quality Monitoring The 7Semi SGP41 VOC Sensor Breakout Board is a compact and reliable solution for monitoring indoor air quality with high precision. Built around Sensirion’s advanced SGP41 sensing technology, this VOC Sensor accurately detects volatile organic compounds, helping assess air freshness and pollution levels in real time. Operating at an exact 3.3V and communicating via an I2C interface, it integrates smoothly with popular microcontrollers and development boards. The onboard Qwiic connector simplifies wiring, making this air quality VOC sensor ideal for applications such as air purifiers, HVAC systems, smart buildings, and long-term environmental monitoring where accuracy and stability matter. Leverage the power of the SGP41 to create innovative air quality solutions. Whether you're developing air purifiers, ventilation systems, or environmental monitoring devices, this sensor breakout is your essential component. Features: Sensirion SGP40 Sensor: Provides accurate VOC and NOx detection for better air quality assessments. The Digital I2C Interface simplifies communication and integration with your system. Robust Construction: Designed to endure real-world situations while maintaining long-term stability. Compact design is ideal for applications that require limited space. Easy integration: Solderable headers allow for a simple connection.

7Semi SHT40 SGP40 VOC Environmental Monitoring Sensor Module Qwiic-Ready The 7Semi SHT40 + SGP40 VOC Environmental Monitoring Sensor Module is designed to help you measure temperature, humidity, and air quality with high accuracy and minimal effort. Built with advanced SHT40 and SGP40 sensing technology, this compact module delivers precise data for temperature (–40°C to 125°C), humidity (0–100% RH), and VOC levels with excellent response time and reliability. Whether you're prototyping with Arduino, Raspberry Pi, or any I2C-based microcontroller, the Qwiic-compatible interface makes integration incredibly simple and clean. This breakout board is ideal for home automation, indoor air-quality projects, workplace monitoring, or industrial systems where accurate VOC readings matter. Its low power consumption and digital 16-bit output make it highly suitable for long-term IoT deployments, high-precision environmental sensing projects, and portable air-quality monitors. Features: Designed as a compact breakout board integrating the SHT40 high-precision temperature and humidity sensor and the SGP40 VOC sensor for reliable environmental monitoring. Offers fast and accurate measurements, including ±0.2°C temperature accuracy and ±1.8% RH humidity accuracy, ensuring dependable readings in various environments. Qwiic-compatible interface enables effortless plug-and-play connectivity with I2C-enabled microcontrollers and SBCs without soldering. Produces 16-bit digital raw and processed VOC Index signals for easy integration into data-logging, automation, or IoT systems. Ensures low power consumption, making it suitable for battery-powered and continuous-monitoring applications. Built to detect a wide range of volatile organic compounds such as ethanol, acetone, and formaldehyde with high sensitivity and quick response times. Board Dimensions: Arduino I2C Connection Diagram:

7Semi SHT40 Temperature & Humidity Sensor Breakout Board with 1.27mm Pitch The 7Semi SHT40 Temperature and Humidity Sensor Breakout is a compact, precision-engineered module built for applications where accurate environmental monitoring and ultra-low power consumption are crucial. Powered by Sensirion’s fourth-generation SHT40 sensor, it delivers highly reliable 16-bit temperature and humidity data while operating at just 3.3V. With its exceptionally low energy usage, fast response time, and robust ±1.8% RH and ±0.2°C accuracy, it’s an ideal upgrade for modern IoT, wearable, and battery-powered designs that demand consistent and stable performance. Designed for effortless integration, the board features a 1.27 mm pitch, a 4-pin header, and a versatile I2C interface with multiple address options, making it simple to deploy across embedded systems, development platforms, and prototype setups. Whether you're building smart home automation, industrial monitoring, or IoT environmental sensing projects, this SHT40 breakout ensures dependable, long-term operation even in demanding ambient conditions, helping engineers and makers achieve more accurate and energy-efficient data processing. Features: The SHT40 sensor delivers high-precision readings with ±1.8% RH humidity accuracy and ±0.2°C temperature accuracy for trustworthy environmental data. Designed for low-power applications, operating at under 0.15mA in low-power mode for extended battery life. Compact breakout board with a 1.27 mm pitch 4-pin header, making it ideal for tight-space electronic designs and fast prototyping. Provides a reliable I2C communication interface with multiple preconfigured addresses for easy use in multi-sensor networks. Efficient 3.3V operation ensures stable performance across microcontroller and IoT platforms. Fast response time of 8 seconds for real-time temperature and humidity tracking. Suitable for smart homes, industrial automation, IoT environmental nodes, air quality systems, and intelligent building 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 SHT41 Temperature & Humidity Sensor Breakout with I2C Qwiic Interface The 7Semi SHT41 Temperature & Humidity Sensor Breakout is a high-precision humidity sensor module built for engineers, developers, and IoT creators who need reliable environmental data in compact embedded systems. Powered by Sensirion’s advanced CMOSens® technology, this I2C temperature sensor delivers accurate readings across a wide range, making it ideal for smart home automation, HVAC upgrades, weather stations, and industrial monitoring systems. With its accurate ±1.5% RH humidity and ±0.2°C temperature performance, it ensures consistent measurements even in demanding environments. Designed with a built-in Qwiic connector, the breakout allows fast, solder-free plug-and-play integration into Qwiic-compatible ecosystems like Arduino, Raspberry Pi, and other development platforms. Its quick response time, low power consumption, and compact 30 × 22 mm footprint make it a dependable environmental monitoring sensor for portable, battery-powered devices, IoT prototypes, and educational projects. Whether used in climate control systems or air-quality tracking, the SHT41 provides robust, long-term stability. Features: Designed with Sensirion’s CMOSens® technology to deliver high-accuracy temperature and humidity readings with long-term stability. Offers a full 0–100% RH humidity range and a wide temperature range of -40°C to 125°C, making it suitable for varied climates and applications. Integrated Qwiic connector provides seamless, solder-free connectivity for rapid prototyping and easy hardware integration. Supports I2C communication, allowing compatibility with Arduino, Raspberry Pi, ESP32, and other development platforms. Features a compact and lightweight 30 × 22 mm PCB, ideal for embedded and space-constrained designs. Operates on 3.3V–5V supply with low operating current, making it suitable for battery-powered and energy-efficient systems.