Step-Down converter with adjustable output voltage from 4.2 V to 15 V and output voltage up to 45 V. It is equipped with reverse voltage protection, input undervoltage lockout, overload and short circuit protection. Pololu 4854

The NEO-F10N GNSS module, which uses L1/L5 bands, offers metro-level location accuracy. It provides better performance in challenging urban environments. It supports simultaneous acquisition of signals from three GNSS constellations: GPS, Galileo, and BeiDou. SparkFun GPS-24114

The 8-channel ULN2803A system enables controlling high-current loads from a low-voltage logic level. Adapted for surface mounting, it is used in automation systems, motor control, and microcontroller circuits.

This compact board breaks out the pins of a microSD card connector necessary to interface with the card through SPI (Serial Peripheral Interface), and it can be directly integrated into 5 V systems thanks to its on board 3.3 V regulator and level shifting circuity. Pololu 2587

WiFi/BLE module that supports both the 2.4 GHz and 5 GHz WiFi bands, as well as Bluetooth Low Energy (BLE 4.2) communication. It has a built-in chip antenna and 2.54 mm pitch connectors, which greatly facilitate prototyping. Tibbo WA2000C

WiFi/BLE module that supports both the 2.4 GHz and 5 GHz WiFi bands, as well as Bluetooth Low Energy (BLE 4.2) communication. It has a u.FL connector dedicated to connecting an external antenna and a connector with a 2.54 mm pitch, which greatly facilitates prototyping. Tibbo WA2000U

The controller enables to supply the motors with voltage in the range of 10-47V and power consumption in continuous operation of 1.7A (4.5A peak) for each channel in dual or 3.4A mode (9A peak) in single channel mode. Pololu 2999

LiDAR sensor using distance measurement technology based on the principle of triangulation. It offers a measurement range from 25 to 300 mm and a measurement frequency of 28 Hz, thanks to which it ensures fast and effective data acquisition in various environmental conditions. DFRobot DFR1030

Step-Up DC-DC converter module. It has an input voltage of 1.3 to 16 V, an output voltage of 7.5 V and a maximum input of up to 2 A. Pololu 4943

NRF24L01 module with UART serial interface. It has a built-in antenna and a microcontroller that acts as a converter. It allows the design and testing of 2.4 GHz radio communication via a serial interface

Low power Wi-Fi module integrating wireless LAN and Cortex-M4 STM32F411CE microcontroller. It has 2 MB external flash memory, 512 KB bytes embedded flash memory, 128 KB RAM and peripherals. Seeed Studio 113990108

The Micsig MS-A-011 S alligator clips are a pair of small, precision clips that provide a secure connection of wires when testing electronics, even in hard-to-reach places. Made of durable materials, they offer a strong grip and high resistance to wear, making them ideal for working with small components.

The 2ON-2OC emergency switch designed for safety systems in various devices. Thanks to the stainless steel housing and water resistance, it is durable and reliable in difficult working conditions

LTR390-UV UV light sensor module. Allows measurement of ultraviolet and visible light intensity. Equipped with a Gravity connector, it communicates via an I2C or UART interface. DFRobot SEN0540

Module with EEPROM memory, capacity 512 kbit (64kB). Communication takes place via the I2C interface. The module has 3 jumpers that enable selection of one of 8 addresses. SparkFun SPX-14764

Advanced expansion shield for Arduino. Supports SIM cards as well as NB-IoT / CAT-M cards. With the integrated GNSS (Global Navigation Satellite System) module, it supports GPS, GLONASS, Galileo and BeiDou navigation systems. The module is powered with a voltage from 7 V to 12 V. DFRobot DFR0572

A 24-channel input/output port expander module controlled by an I2C interface. It was based on the CH423 chip and equipped with a Gravity connector. DFRobot DFR0979

ST13003A, High voltage fast-switching power transistor, NPN, 700 V, 3 A, SOT-32

10-Port Gigabit PoE Switch, equipped with 8 IEEE 802.3af/at compliant Ethernet PoE ports, providing up to 30W per port and 120W total power, as well as 1 Gigabit port and 1 SFP fiber port. With One-Click VLAN, support for energy-saving IEEE 802.3az standard, and a rugged metal housing that is resistant to surges and electrostatic discharge, the switch is suitable for demanding network environments, offering flexible desktop or wall mounting options. PUSR USR-S1210P