Resistive soil moisture sensor. The board is equipped with a Grove connector and communicates via an analog interface. Seeed Studio 101020008

The module with a TA12-200 current sensor with a measuring range of alternating current up to 5 A. The board is equipped with a Grove connector and communicates via an analog interface. Seeed Studio 101020027

Module with a slide potentiometer. Depending on the position of the slider, the resistance value (maximum resistance 10kΩ) changes, which translates into the voltage value at the analog output of the module. The module has a connector in accordance with the Grove standard. Seeed studio 101020036

Module with 4 5 V relays with a maximum switching current of 2 A. It communicates via the USB interface and does not require an additional power supply. Numato Lab USBPOWRL004

Module with rotary potentiometer. The connector in this module has been moved to the other side of the PCB, which makes it easier to assemble and use this module. The module has a connector in accordance with the Grove standard. Seeed studio 101020048

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

IPS 3.5" LCD display with touch screen. The display is equipped with a DPI interface for image display and I2C interface for a touch panel. Resolution 640x480 pixels. Waveshare 3.5inch DPI LCD

Module with 4 relays with a maximum switching current of 7 A. Equipped with the ATmega328P microcontroller, it can be programmed in the Arduino IDE. Numato Lab PRLY002

Module with red LED diode and potentiometer. The board is equipped with a Grove connector and communicates via a digital interface. Seeed Studio 104030005

With an integrated ESP8266 WiFi controller this module is a one-stop shop for almost any Internet-connected project. Firmware can be developed in Arduino and uploaded over a simple, serial interface. WRL-13711

Camera for Raspberry Pi Compute Module and NVIDIA Jetson Nano. It was equipped with a Sony IMX477 sensor with a resolution of 12.3 MPx and a built-in IR filter. Waveshare IMX477-160 12.3MP Camera

It has 10 segments, one can be highlighted in red, one in yellow, one in light green, the rest in green. This type of display can be used to indicate battery charge, liquid level in the tank, volume etc. Seeed Studio 104020006

8-channel IO expander with 6 analog inputs. It communicates via the USB interface. Version without Pull-Up resistors. Numato Lab GP80001

Module with real time clock (RTC) PCF8523 dedicated for minicomputers Raspberry Pi. It communicates via the I2C interface. Adafruit 3386

Module with 32 12 V relays with a maximum switching current of 7 A. It communicates via the USB interface. Numato Lab RL320001

The X-NUCLEO-IHM12A1 is a low voltage dual brush DC motor driver expansion board based on the STSPIN240 for STM32 Nucleo. It provides an affordable and easy-to-use solution for the implementation of portable motor driving applications such as thermal printers, robotics and toys

Module with LSM6DS3 sensor that combines a 3-axis accelerometer and a 3-axis gyroscope. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 105020012

ARK terminal connector spring 3-pin, pitch 2.54 mm, non-detachable.

Module with two DRV8830 DC motor drivers. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 105020010

Atmel ATmega32U4 microcontroller comes preloaded with an Arduino-compatible bootloader, and the board includes dual motor drivers that can deliver 1.7 A per channel to two brushed DC motors. Pololu 3119