Module with 4 QTR type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4204

Compact light sensor that provides precise measurement of both illuminance (10–10000 Lux) and correlated color temperature (2700K–6500K), with low measurement errors. Thanks to I2C and UART interfaces, the sensor easily integrates with platforms such as Arduino or Raspberry Pi, making it an ideal tool for photographers, filmmakers and projects requiring lighting control. DFRobot SEN0611

Module with pressure and temperature sensor BMP280. It allows you to read the atmospheric pressure in the range from 300 to 1100 hPa and communicates via the I2C or SPI interface. Adafruit 2651

Module designed for the XIAO development platform. It acts as an advanced human presence sensor, using FMCW technology to detect human targets in a specific space. The module offers a maximum detection distance of up to 5 meters and a wide detection angle of ±60°. Seeed Studio 101010001

An ultrasonic sensor whose operation is based on the time-of-flight (ToF) principle. In addition to distance information, the sensor also generates an echo energy intensity value useful for distinguishing between different materials or surfaces. Seeed Studio 101021097

intelligent gesture recognition module equipped with an IR camera module PAG7646J1, PAG7661QN (ISP) and a LED for backlighting. Recognizes and interprets hand gestures by recognizing the image recorded by an infrared camera. Seeed Studio 101991067

Compact MEMS environmental sensor capable of measuring temperature, humidity, pressure and VOC, with I2C and SPI support and AI-powered gas analysis. Ideal for projects such as weather stations, smart home systems and air quality monitors, it provides high measurement precision and integration flexibility. DFRobot SEN0617

Module with a human presence and movement sensor designed based on the STHS34PF80 infrared sensor. Enables monitoring of radiation and ambient temperature within an 80° field of view. The sensor can precisely detect movement and presence within a range of 4 m. It uses the I2C or SPI interface for communication and has built-in Qwiic connectors. SparkFun SEN-23253

TMAG5273 Hall sensor module dedicated to detecting the presence, strength and direction of a magnetic field in three dimensions. It uses communication via the I2C interface and Qwiic connectors. SparkFun SEN-23881

Module with ACS723 current sensor with a measuring range of AC and DC ± 5 A. It communicates via an analog interface. SparkFun SEN-13679

Liquid level sensor (up to 124 mm) with analog output. The output voltage varies in proportion to the liquid level. The measuring element is placed in a plastic housing. Adafruit 3828

Module with nitrogen dioxide sensor made in MEMS technology. It allows gas detection in the range of 0.1 to 10 ppm and has an analog output. DFRobot SEN0574

Finger Vein Scanner Module (B) is a thin, energy-efficient biometric module with finger vein detection based on a Cortex-M4F microcontroller, designed for precise user identification in security applications. NIR technology enables effective recognition regardless of the skin surface condition, making the module a reliable alternative to traditional fingerprint readers. Thanks to its compact dimensions and a rich set of accessories, it facilitates integration with smart locks, door handles, access control systems, and compact IoT terminals.

The set contains: MQ-5 Gas Sensor, Color Sensor, Flame Sensor, Hall Sensor, Infrared Reflective Sensor, Laser Sensor, Moisture Sensor, Rotation Sensor, Sound Sensor, Temperature-Humidity Sensor, Tilt Sensor, UV Sensor, Liquid Level Sensor. Modules compatible with Arduino

Small 10 DoF IMU module with 3-axis gyroscope and accelerometer (LSM6DSO), 3-axis magnetometer (LIS3MDL) and barometer (LPS22DF). It is equipped with an I2C interface, a voltage stabilizer and a voltage level converter. Pololu 2863

BME688 integrated gas, pressure, temperature and humidity sensor module in a single MEMS housing. It is equipped with an I2C and SPI interface. It has built-in AI functions. Waveshare BME688 Environmental Sensor

LTR390-UV UV light sensor module. Allows measurement of ultraviolet and visible light intensity. Equipped with a Gravity connector, it communicates via an I2C or UART interface. DFRobot SEN0540

Ambient light sensor housed in a transparent hemisphere and waterproof housing. It supports a detection range of 0 to 65535 lux and communicates via an I2C interface. DFRobot SEN0562

Analogue current sensor module. Allows measurement of AC and DC currents up to 50 A. DFRobot SEN0098-V2

BMP390 digital barometer module. Measures pressure from 300 to 1250 hPa and temperature from -40℃ to 85℃. It communicates via an I2C or SPI interface. Waveshare BMP390 Barometric Pressure Sensor