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

Module with 25 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 4225

Module with a PIR motion sensor. It can detect movement up to 7 meters with a detection angle of 100 degrees. DFRobot SEN0171

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

Finder 18.31.8.230.0031 is a PIR sensor for flush mounting, controlling a single NO contact rated at 10 A at 230 V AC. Ideal for automatic indoor lighting control, it is mounted in suspended ceilings and ensures reliable and safe operation.

Module with a gesture and touch sensor. It recognizes 7 types of gestures and has 5 touch buttons. It is supplied with a voltage ranging from 3.3 V to 5 V and communicates via UART. DFRobot SEN0285

Module with 6 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 4206

Module with 6 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 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4106

Module with a 3-axis ADXL343 accelerometer with a configurable measuring range of ±2g/±4g/±8g/±16g. Equipped with a STEMMA QT connector, it communicates via the I2C or SPI interface. Adafruit 4097

Module with 7 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 4347

Module with 13 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 4413

Module with PM2.5 HM3301 dust sensor. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 101020613

Module with 8 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 4448

Module with a pulse sensor and the level of SpO2 (oxygen saturation level). It is based on the MAX30102 chip, dedicated to the T-Wristband

Module with MLX90614 temperature sensor with a measurement accuracy of 0.2°C and a viewing angle of 35°. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 101020895

Module with Sensirion SCD30 sensor, which enables CO2, temperature and humidity measurement. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 101020634

Ultrasonic distance sensor MB1200 with a range from 0 to 765 cm. It generates an output in the form of a pulse, the duration of which is proportional to the measured distance. Pololu 1650

Module with heart rate sensor, SpO2 (oxygen saturation) and smoke levels. It is based on the MAX30101 chip and communicates via the I2C interface. Pimoroni PIM438

Module with a 3-axis KX134 accelerometer. The system has a user selectable measurement scale of ±8/±16/±32/±64 g. There are two Qwiic connectors on the board and holes with a 2.54 mm pitch. SparkFun SEN-17589

Module with an analog MQ5 LPG sensor. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0130