IR optical sensor module based on a slotted optocoupler. It enables the construction of an incremental encoder

The SCD-41 CO2, temperature and humidity sensor module provides high accuracy readings. It is equipped with a Qwiic connector and communicates via an I2C interface. SparkFun SEN-22396

ireless sensor with LoRaWAN network communication. Dedicated to industrial long-distance data acquisition with a wide light intensity measurement range from 0 to 160000 Lux. Seeed Studio 114992868

Wireless sensor with LoRaWAN network communication. Dedicated to long-distance industrial data acquisition with a wide measurement range of CO2 from 400 to 10000 ppm, temperature from -40°C to 85°C and humidity from 0 to 100% RH. Seeed Studio 114992869

Seeed Studio SenseCAP S2105 wireless soil sensor designed for simultaneous measurement of volumetric water content, soil temperature, and electrical conductivity (EC). LoRaWAN® communication, an IP66-rated enclosure, and a replaceable 19 Ah battery enable deployment in smart agriculture, irrigation, and remote soil condition monitoring systems. Seeed Studio 114992871

Optical rain sensor module for detecting the state of rainfall on glass. It is configured via the UART interface and returns rain intensity information via this bus. DFRobot SEN0545

Ultrasonic distance sensor with a range of 30 to 500 cm. Powered from 5 to 12 V, it communicates via RS485 interface. DFRobot SEN0519

Air quality sensor based on the ENS160 chip and enclosed in a housing. It communicates via an I2C interface. DFRobot SEN0515

A module with a 3-axis magnetometer based on the BMM150 chip. It communicates via an I2C interface. DFRobot SEN0529

LHT65N sensor for measuring air temperature and humidity with LoRaWAN 868MHz communication, supporting an external temperature probe, designed for long-term environmental monitoring. Seeed Studio 113990756

Crowtail – 3-Axis Digital Gyro is a gyroscope module with the ITG-3200 chip, offering precise rotational-motion measurement on three axes. Intended for interactive projects, robotics, control systems, and motion-responsive devices.

The GR10-30 sensor module, which can recognise up to 12 user gestures from a distance of up to 30 cm. It supports communication via both UART and I2C interfaces. DFRobot SEN0561

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

Module with 3-axis accelerometer and gyroscope LSM6DSV16X. The chip is a low-power IMU optimized for IoT devices with data processing capabilities using machine learning. Equipped with a Qwiic connector, it communicates via the I2C interface. SparkFun SEN-21336

Module with hydrogen sulphide sensor made in MEMS technology. It allows gas detection in the range of 0.5 to 50 ppm and has an analog output. DFRobot SEN0568

Module with 4 QTRX 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 4444

Board with a temperature sensor DS18B20 designed for modules ESP8266, ESP-01 and ESP-01S

Total suspended particulate (TSP) sensor that allows you to measure the particle concentration from 1 to 100 μm. SDS198

Adafruit module with Si7021 temperature and humidity sensor. Sensor Sillicon Labs can measure temperature in the range of -10 ~ 125 ° C, and humidity in the range of 0-100 & RH. The sensor communicates using the I2C interface. Adafruit 3251

Wireless, precise temperature sensor with high accuracy with built-in recorder. Works with thermoelectric sensors type K, J, T, N, E, B, S and R