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

Soil moisture sensor with analog output. The probe has two pointed tabs, making it easy to insert into the ground. It is supplied with the voltage of 3.3V or 5V. DFRobot SEN0114

Module with gas sensor SGP30. It allows you to measure the content of total volatile organic compounds (TVOC), carbon dioxide equivalent (eCO2), ethanol and H2 in the air. M5Stack U088

Non-contact, capacitive liquid level sensor with flexible probe. It allows you to detect the presence of, among others water in non-metallic containers. DFRobot SEN0508

The LIS3DH 12-bit 3-axis capacitive accelerometer module is a great tool for motion detection in your projects, capturing accelerations in three axes (3DoF). Simple configuration with SPI or I2C interface, as well as the ability to work on a breadboard, make the module user-friendly and perfect for various applications, from robotics to wearable devices. SparkFun SEN-20659

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-23880

A set with opening and closing sensors based on a reed switch, intended for installation on doors or windows. CMD1263

Module with 1 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 30 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4201

Module with a temperature and humidity sensor DHT22. It allows you to measure humidity in the range from 0 to 100% and temperature from -40 to 80℃. DFRobot SEN0137

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±30 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and its low current path resistance (~1.6 mΩ) minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5453

Module with a 3-axis BMA400 accelerometer with a measuring range up to ± 16g. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 101020582

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5456

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±30 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5457

Module with 1 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 30 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4401

ENS160 gas sensor module to measure the concentration of carbon dioxide (eCO2) and volatile organic compounds (TVOC) in the air. It communicates via an I2C or SPI interface. SparkFun SEN-20844

Module with digital temperature sensor AS6212. It enables measurement in the range from –40°C to 125°C with an accuracy of 0.2°C. SparkFun SEN-18521

Module with ethanol sensor made in MEMS technology. It allows gas detection in the range of 1 to 500 ppm and has an analog output. DFRobot SEN0569

Module with heart rate and SpO2 sensor (oxygen saturation level) MAX30100 designed for M5Stack sets. M5Stack U029

An optical particle sensor that uses laser scattering and Sensirion\'s innovative contamination resistance technology. It enables users to measure mass concentration and particle number. SparkFun SEN-15103

Module with a 3-axis ADXL345 accelerometer with a configurable measuring range of ±2/±4/±8/±16 g. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 101020054