Module with LCD display 16x2 characters with blue backlight. It is supplied with the voltage from 3.3 V to 5 V and communicates via the I2C interface. DFRobot DFR0555

This small synchronous switching step-down (or buck) regulator takes an input voltage from 4 V to 36 V and efficiently reduces it to 3.3 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.6 A and features reverse voltage protection.

The Lanberg HDMI M/M V1.4 cable, 1.8 meters in length, is made from CCS (copper-clad steel) conductor, ensuring reliable audio-video signal transmission in the HDMI 1.4 standard. Available in a bulk package containing 10 units, it is an ideal choice for wholesale applications or professional installations. CA-HDMI-13CC-0050-BK

8x16 LED matrix equipped with colored LEDs and a driver. It is powered by 5 V and communicates via the I2C interface (Gravity connector). DFRobot DFR0522

Soil moisture sensor with analog output. The probe has two pointed tabs, making it easy to insert into the ground. It is supplied with the voltage of 3.3V or 5V. DFRobot SEN0114

The ACS72981 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 250 kHz) and low conduction resistance (0.2 mΩ), it minimizes energy loss and offers a fast response time of less than 2 µs. Pololu 5253

The ACS72981 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 250 kHz) and low conduction resistance (0.2 mΩ), it minimizes energy loss and offers a fast response time of less than 2 µs. Pololu 5254

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

The ACS72981 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 250 kHz) and low conduction resistance (0.2 mΩ), it minimizes energy loss and offers a fast response time of less than 2 µs. Pololu 5255

Module with a temperature and humidity sensor DHT22. It allows you to measure humidity in the range from 0 to 100% and temperature from -40 to 80℃. DFRobot SEN0137

The Lanberg CA-HDMI-10CC-0100-BK is a 10-meter HDMI cable in version 1.4b, supporting a resolution of up to 3840 x 2160 pixels and the ARC standard. Equipped with gold-plated connectors and a plastic braid, it ensures reliable audio-video signal transmission over long distances. 

The JC-BBC04021 black 4 mm alligator clip (10 A / 1000 V CAT III) provides safe and stable connections for test and measurement tasks in electrical and service environments.

Graphical display, users may show off graphs, full-color pictures, text, and anything else they want to see by communicating with it through SPI. Digilent 410-323

The Lanberg HDMI M/M V1.4 cable, 1 meter in length, is made from CCS (copper-clad steel) conductor, ensuring reliable audio-video signal transmission in the HDMI 1.4 standard. Available in a bulk package containing 10 units, it is an ideal choice for wholesale applications or professional installations. CA-HDMI-13CC-0010-BK

8 Channel 5V Relay Module

Module with an analog MQ7 carbon monoxide sensor. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0132

The core of a small robot, either as an auxiliary controller atop a Raspberry Pi base or as a complete control solution on its own. Its Atmel ATmega32U4 microcontroller comes preloaded with an Arduino-compatible bootloader. This version does not include any through-hole components or connectors, allowing for customized assembly or standalone use. Pololu 3118

Module with an analog TEMT6000 light intensity sensor. The voltage at the output is linearly correlated with the intensity of the incident light. The module is supplied with the voltage from 3.3 to 5V. DFRobot SEN0043

2 Channel 5V Relay Module