Module with BME280 environmental sensor. It allows you to measure temperature, humidity and pressure. The sensor is equipped with two communication interfaces: SPI and I2C. SparkFun SEN-13905

Module with 5 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 4205

Module with liquid turbidity sensor. The board is equipped with a Grove connector and communicates via a digital or analog interface. Seeed Studio 101020752

Formaldehyde sensor (HCHO) dedicated to measuring ambient air quality. It is used to detect whether the surrounding environment exceeds a set concentration threshold. It is powered by a voltage of 5 V to 24 V and has an output in the form of a two-state digital signal. DFRobot SEN0595

Multi-functional environmental sensor consisting of SHTC3 temperature and humidity sensor, BMP280 pressure sensor, VEML7700 ambient light sensor and ML8511 UV sensor. DFRobot SEN0500

Air quality sensor module PMSA003. It allows you to analyze the amount of pollutants based on the concentration of PM1.0, PM2.5 and PM10 particles. SB Components 21208

The MPX5700AP air pressure sensor with a measuring range from 15 to 700 kPa. It communicates via the I2C interface. DFRobot SEN0456

Capacitive liquid level sensor for mounting on non-metallic pipes. DFRobot SEN0509

Air quality sensor module based on the ENS160 system. It communicates via the I2C interface (Gravity connector). DFRobot SEN0514

A miniature lidar distance sensor that detects objects up to 200 cm away, regardless of color, transparency, or lighting. It generates a digital signal (0 V on detection), operates in the 3-5.5 V range, draws only 30 mA, and supports sleep mode via the ENABLE pin. Ideal for robotics, automation, and contactless interfaces, it offers a fast response time (30 Hz), switching hysteresis, and a compact housing with an indicator LED. Pololu 5491

Module with a pulse sensor and the level of SpO2 (oxygen saturation level). It is based on the MAX30102 chip and communicates via the I2C or UART interface (Gravity connector). DFRobot SEN0518

Mini module with ToF VL53L5CX sensor with a matrix of 64 pixels and a range of up to 4 m. It is equipped with a Qwiic connector and communicates via the I2C interface. SparkFun SEN-19013

A miniature lidar proximity sensor that detects objects in the range of 1 mm to 300 cm by generating a PWM signal proportional to distance. It operates in the 3-5.5 V range, draws 30 mA, features an ENABLE pin for sleep mode, a 3-pin JST SH connector, and an indicator LED. Its resistance to color, transparency, and lighting makes it ideal for robotics, automation, and contactless interfaces. Pololu 5493

A miniature lidar proximity sensor that detects objects within a range of 1 mm to 130 cm by generating a PWM signal proportional to distance. It operates within a 3-5.5 V range, draws 30 mA, and features an ENABLE pin for sleep mode. It also includes a 3-pin JST SH connector and an indicator LED. Its color, transparency, and light-sensitive properties make it ideal for robotics, automation, and contactless interfaces. Pololu 5485

Doppler radar module with 24GHz transceiver. It allows for precise distance measurement and motion detection. The board communicates via the UART interface. Seeed Studio 101990883

TVOC Sensor is a high-performance and precise sensor for detecting volatile organic compounds, formaldehyde, and CO₂. The integrated UART interface allows easy communication with microcontrollers, making it an ideal solution for air monitoring projects in homes, industry, vehicles, and consumer electronics.

Module with CO2, temperature and humidity sensor SCD-41. Equipped with a Qwiic/STEMMA QT connector, it communicates via the I2C interface. Pimoroni PIM587

Crowtail-PIR Motion Sensor 2.0 is a digital motion sensor for use in alarm systems, building automation and interactive projects. It provides a wide detection angle and adjustable range in a compact form with easy connection through the Crowtail interface.

Module dedicated to projects related to air quality monitoring. It uses the popular ENS160 and BME280 chips and provides a variety of environmental data such as Air Quality Index (AQI), TVOCs levels, CO2 equivalent (eCO2), atmospheric pressure, humidity and temperature. It communicates via the I2C interface and offers two Qwiic connectors. SparkFun SEN-22858

A miniature lidar proximity sensor that detects objects up to 15 cm away, regardless of color, transparency, or lighting. It generates a digital signal (0 V on detection), operates in the 3-5.5 V range, draws only 30 mA, and supports sleep mode via the ENABLE pin. Ideal for robotics, automation, and contactless interfaces, it offers a fast response time (142 Hz), switching hysteresis, and a compact housing with an indicator LED. Pololu 5464