Heart rate monitor module based on the MAX30102 chip. Powered with the voltage from 3.3 to 5V, communication via the I2C interface.

Module with an analog IR reflective sensor. It consists of an IR diode and a phototransistor which measures the intensity of the reflected light. Used, among others in line tracking robots. Cytron MAKER-REFLECT

Module with 3-axis digital accelerator ADXL345, SPI and I2C communication.

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

Module with the MQ3 analog alcohol sensor. It allows you to detect gas and build a simple breathalyzer. The module is powered by 5 V and has an analog output

Module with a pulse sensor and SpO2 level (oxygen saturation level). It is based on the MAX30102 chip and MCU with heart rate and oximetry algorithm. Sensor communicates via the I2C interface. DFRobot SEN0344

Air humidity and temperature sensor with 1-Wire interface.

Module with light sensor (photoresistor). An analog output was led out on the XH2.54 connector

PMS7003 is a kind of digital and universal particle concentration sensor, which can be used to obtain the number of suspended particles in the air, i.e. the concentration of particles, and output them in the form of digital interface

Module with an analog TEMT6000 light intensity sensor. The output voltage is linearly correlated with the intensity of the incident light. The module is supplied with the voltage from 3.3 to 5V

Module with an analog temperature sensor in the form of a thermistor. Equipped with an XH2.54 connector

The module allows you to attach a strain gauge (working in the Wheatstone bridge circuit) and convert the analog signal into its digital representation, available on the module output lines. The system processes the signal with a 24-bit resolution and can be powered by 2.7V - 5.5V. The module is especially recommended for constructing digital scales in combination with Arduino

Laser distance sensor with a measurement range of 0.3 m to 2 m. It communicates via the UART interface. Benewake TF-LC02

Module with temperature, humidity and pressure sensor BME680 from Bosch. The module communicates via I2C or SPI interfaces.

The MQ-3 sensor allows you to measure the concentration of alcohol vapors. The measuring range of the sensor is in the range of 0.05 mg / L to 10mg / L, and an analogue signal is obtained at the output.

Current-to-voltage converter module designed for devices with a current signal output. It allows linear conversion of current signals from 0 to 25 mA into voltage signals from 0 to 3 V. DFRrobot SEN0262

Capacitive soil moisture sensor with analog output (Grove connector). The probe has a pointed tip, which allows it to be easily inserted into the ground. Cytron MAKER-SOIL-MOISTURE

Module with a 3-axis magnetic field sensor MMC5603. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 5579

The module with A3244 Hall sensor and comparator allows you to detect the presence of a magnetic field. It can be used for applications such as rotation detection, position monitoring and alarm systems

Laser distance sensor with a measurement range of 0.1 m to 12 m dedicated to indoor use. It communicates via UART or I2C interface. Benewake TFmini Plus Indoor