Module with a reflection sensor (line sensor) RS-06WD. The board is equipped with a Grove connector and communicates via a digital interface. Seeed Studio 101020172

Module with 16 QTR 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 4156

Gravity: Formaldehyde (HCHO) Sensor is a module for measuring the concentration of formaldehyde (methane) in the air. It can be supplied with voltage in the range of 3.3 ... 6V. DFRobot SEN0231

Thermocouple converter module based on the AD8495 circuit with an analogue output. Adafruit 1778

Module with five reflection sensors. It has digital and analogue outputs. Thanks to the embedded EEPROM memory, it enables easy sensor calibration. Cytron Maker Line

Module with ACS724LLCTR-30AU current sensor with a measuring range of direct and alternating current from 0 to 30 A. It communicates via an analog interface. Pololu 4046

Photoelectric liquid level sensor FS-IR02 in a set with a Gravity adapter. DFRobot SEN0205

Analogue temperature and humidity sensor module based on SHT30 sensor. It is characterized by high reliability and stability with low energy consumption. It is compatible with 3.3V and 5V controllers, such as Arduino, micro:bit, ESP32. DFRobot DFR0588

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 4204

A 5-channel flame detector module for detecting a flame over a larger area. Detects fire with 5 sensors that are placed on the module every 30 degrees. It has a digital and analog output. modFLAME-5CH

The UM7 orientation sensor from Redshift Labs is an Attitude and Heading Reference System (AHRS) that contains a three-axis accelerometer, rate gyro, and magnetometer. It combines this data using an Extended Kalman Filter to produce attitude and heading estimates.

Digital orientation sensor module. DFRobot DFR0028

Laser sensor of air pollution with particles PM1,0, PM2.5 and PM10. It allows for precise analysis of the amount of pollutants in the environment, has small dimensions and a built-in silent transfer fan. Data is output to the UART interface. Planter PMSA003-C

DFRobot Gravity analog light intensity module for Arduino and Raspberry Pi. DFRobot DFR0026

I2C BME680 Environmental Sensor is a gas, pressure, temperature and humidity sensor in one MEMS housing. The module is supplied with 3.3-5V, for communication the I2C or SPI interface is used. DFRobot SEN0248

Module with 2 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 4402

A module with an EMG sensor that detects the activity of human muscles and neurons. Generates an analog signal in the range from 0 to 3 V on the output, it does not require the use of a conductive gel. DFRobot SEN0240

Flexible pressure sensor with dimensions of 400x15 mm. Designed to detect static and dynamic pressure at high reaction speed. DFRobot SEN0299

Temperature and humidity sensor module with DHT22 sensor (AM2302)

Module with 15 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 50 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4215