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 4244

SenseCAP Combo 5-in-1 environmental sensor in the 4G-YUN-03-Global variant, designed to monitor air temperature, humidity, atmospheric pressure, light intensity, and CO₂ concentration. It uses 4G Cat.1 connectivity and the MQTT protocol for remote data transmission, while the RS485 Modbus RTU interface supports up to 10 additional sensors. Equipped with a 1 W solar panel, a 5200 mAh Li-Ion battery, and local storage for up to 500,000 records. The IPX5-rated enclosure makes the device suitable for greenhouse applications and environmental monitoring systems. Seeed Studio 100035616

A small module with a PIR motion sensor. It allows detecting movement within a maximum range of 6 meters (default up to 3 meters). The measuring angle is 120 degrees. The module has a connector in accordance with the Grove standard. Seeed Studio 101020020

Module with 4 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 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4344

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-22494

Module with 15 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 50 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4315

The module with a heart rate sensor and the SpO2 level dedicated to micro:bit. It is based on the MAX30102 chip and communicates via the I2C interface. SparkFun SEN-15271

Module with 4 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 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4304

Finder 7T.81.0.000.2403 is a NC (Normally Closed) thermostat for precise temperature monitoring in industrial systems. It operates in the range of 0°C to +60°C with a hysteresis of 7±4 K, handling a current of up to 10 A at 250 V AC, ideal for protection against overheating.

Module with ultraviolet (UV) sensor based on the GUVA-S12D system. It allows measurement of radiation with a wavelength in the range from 240 to 370 nm. The module has a connector in accordance with the Grove standard. Seeed Studio 101020043

Soil moisture sensor with I2C interface. The probe has two pointed tabs, making it easy to insert into the ground. The sensor is supplied with the voltage of 3.3 V or 5 V. SparkFun SEN-17731

Module with SGP30 gas sensor. The sensor communicates via the I2C interface. SGP30 system contains several elements reacting to various metal oxides, which allows for more accurate determination of air quality. Adafruit 3709

Gravity: I2C VEML7700 Ambient Light. Sensor SKU. SEN0228

A module with a PIR motion sensor, which has outputs for controlling 230 V LED lighting. ModPirSen

GY-86 10 Degrees of Freedom Flight Control Sensor Module with MPU6050, HMC5883L and MS5611 sensors on a single board. With the help of this module , you can read the values from its on-board 3 axis gyroscope , 3 axis accelerometer ,3 axis magnetic field and air pressure as well. The module has a built-in 3.3V voltage stabilizer. modGY-86

Module with the 3-axis MMA8452Q accelerometer. The system has a user selectable measurement scale of ±2g/±4g/±8g. There are two Qwiic connectors on the board and holes with 2.54 mm raster. SparkFun SEN-14587

Module with an infrared sensor AMG8833 - a measurement matrix with a resolution of 64 pixels (8x8). It offers an accuracy of 2.5°C and the ability to detect people at a distance of up to 7 m. Communication with the sensor is via the I2C interface. SparkFun SEN-14607

A small module with a 3-axis magnetometer based on the Melexis MLX90393 system. Its resolution is 0.161 μT. I2C or SPI interface is used for communication. The I2C interface has been derived on connectors compatible with the Qwiic standard. SparkFun SEN-14571

Distance Sensor Breakout VL53L1X is a distance sensor with a range of 4m and a supply voltage of 2.6 ... 3.5V. Communication with the sensor takes place via the I2C interface. SEN-14722

Module with a digital distance sensor with a range of up to 5 cm. It has a digital output that goes low when an object is detected. Pololu 4050