Module with liquid level sensor. The set includes a current-voltage converter that generates an analog signal. DFRobot KIT0139

Module with green LED, digitally controlled. Perfect for people starting to play with Arduino. Equipped with a Gravity interface. DFRobot DFR0031-G

Module with blue LED, digitally controlled. Perfect for people starting to play with Arduino. Equipped with a Gravity interface. DFRobot DFR0031-B

Module with LM386 audio amplifier and loudspeaker. The board is equipped with a Grove connector and is controlled by a PWM signal. Seeed Studio 107020001

Module with green LED, digitally controlled. Perfect for people starting to play with Arduino. Equipped with a Gravity interface. DFRobot DFR0021-G

Set for IR communication. It consists of an IR receiver module and a remote control. DFRobot DFR0107

Crowtail – GP02 GPS/BDS/GNSS is a compact positioning module with support for three navigation systems, accuracy below 2 m, and a UART interface. Used in projects requiring precise real-time positioning, such as data loggers, vehicle tracking, and field devices.

Module with a flame sensor or other light sources with a wavelength in the range of 760 to 1100 nm. It was based on the YG1006 sensor (photovolver NPN). The sensor has a connector compatible with the Grove standard. Seeed studio 101020049

The touch sensor module (touch button) can be used as a replacement for traditional mechanical buttons. It operates based on the TTP223-B system, which measures the capacity of the metal field on the module. The module has a connector in accordance with the Grove standard. Seeed studio 101020037

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 7.5 V. The board measures only 0.7″ × 0.7″, but it allows a typical continuous output current of up to 2.5 A. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors.

The module with the tilt sensor, the sensor output is a digital signal. The module has a connector in accordance with the Grove standard. Seeed studio 101020025

A small module with a PIR motion sensor. It allows detecting movement within a maximum range of 6 meters (default up to 3 meters). The measuring angle is 120 degrees. The module has a connector in accordance with the Grove standard. Seeed Studio 101020020

Non-contact liquid level sensor. It allows you to detect liquids without the need to immerse the sensor in the liquid. Digital output. DFRobot FIT0212

A4988 Stepper Motor Driver Carrier with male header pins installed, so no soldering is required to use it with an appropriate 16-pin socket or solderless breadboard. Pololu 2981

The sensor is designed for indoor air quality testing. The main gas detected is carbon monoxide, alcohol, acetone, thinner, formaldehyde and other slightly toxic gases. It is compatible with 5V and 3.3V power supply. Seeed Studio 101020078

A4988 Stepper Motor Driver Carrier with male header pins installed, so no soldering is required to use it with an appropriate 16-pin socket or solderless breadboard. Pololu 2980

Module with a humidity sensor. The board is equipped with a Grove connector and communicates via a digital interface. Seeed Studio 101020018

Module allowing collision / vibration detection (based on the MVS0608.02 system). Permitted to detect collisions irrespective of direction, provides high stability and is highly sensitive. The module has a connector in accordance with the Grove standard. Seeed studio 101020005

Step-Down Voltage Regulator D24V25F5. Pololu 2850

A volume sensor designed to detect loud ambient sounds. The module uses a microphone and LM2904 amplifier. The output value (analog signal) depends on the volume of the detected sound. In order to eliminate interference, the microphone signal is subjected to double filtering. Seeed studio 101020063