Optical liquid level sensor module with switching function with NPN output.

Module with a pulse sensor and SpO2 level (oxygen saturation level). It is based on the MAX30102 chip and MCU with heart rate and oximetry algorithm. Sensor communicates via the I2C interface. DFRobot SEN0344

360-degree laser scanner (LIDAR), with a range of up to 12 meters and measurement frequency up to 10 Hz (optimal value 5.5 Hz). DFRobot DFR0315

The AHT15 is a precise and reliable temperature and humidity sensor, ideal for applications in harsh environmental conditions.

A modern module that enables gesture control and detects the presence of people, ensuring privacy and fast offline interactions. Equipped with a camera and an AI processor, the sensor recognizes 5 hand gestures and detects up to 10 faces within a range of 3 meters, supporting I2C and UART communication, making it an ideal solution for IoT, smart homes and touchless systems. DFRobot SEN0626

Temperature sensor based on the DS18B20 chip. It is enclosed in a waterproof measuring probe. It has a 2 m cable and communicates via a 1-Wire interface

Module with 1 QTRX type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 30 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4301

Module with an obstacle sensor operating in the infrared band. Equipped with an XH2.54 connector, it has a digital output informing about the detection of an obstacle

Module with an infrared sensor MLX90640 - a measuring matrix with a resolution of 32x24 pixels. It offers an accuracy of 1°C and a viewing angle of 55° x35°. Communication with the sensor takes place via the I2C interface. Pimoroni PIM365

A small module with a GY-PAJ7620U2 gesture detection sensor. Can recognize 9 gestures. Communication via the I2C interface.

Crowtail – BMP280 Barometer Sensor 2.0 is a compact digital sensor for measuring temperature, atmospheric pressure, and altitude, using the I2C interface. Intended for use in weather projects, mobile environmental systems, and consumer electronics.

Ultrasonic distance sensor MB1000 with a range from 0 to 645 cm. It has an output in the form of a serial interface, an analog signal or generates an impulse whose duration is proportional to the measured distance. Pololu 723

A compact pressure and temperature module ideal for weather stations, drones, and IoT projects. It offers a measurement range of 300–1100 hPa with ±3 Pa accuracy and temperature measurement with ±1°C precision. With a built-in 3.3V regulator and logic level converter, it works with both 3V and 5V microcontrollers. STEMMA QT/Qwiic connectors make it easy to quickly connect and daisy-chain multiple sensors in a single system. Adafruit 6420

The Sharp GP2Y0A02YK0F sensor enables precise distance measurement in the range of 20–150 cm using an analog output. Its stable characteristics and ease of integration make it a popular solution in mobile robotics and obstacle detection systems.

Temperature sensor based on a DS18B20 chip replacement. It is enclosed in a waterproof measuring probe. It has a 2 m cable and communicates via a 1-Wire interface

ACS724LLCTR-30AB current sensor module with a DC and AC measurement range from -30 to +30 A. It communicates via an analog interface. Pololu 4047

The Crowtail-Water Sensor 2.0 module enables detection of contact with water in digital systems. It is used in rain sensors, leak detection and overflow protection of tanks.

Flexible pressure sensor with dimensions of 40 x 40 mm. Designed to detect static and dynamic pressure at high reaction speed. DFRobot SEN0296

Soil moisture sensor based on soil resistivity meansurement

This soil moisture sensor uses a resistive measurement between two gold-plated probes. Corrosion resistance ensures long life and stable measurements. It works with the micro:bit and Arduino platforms, allowing for reading soil moisture levels as an analog signal. Adafruit 6362