Module with LoRa transmitter based on RFM95 (SX1276 LoRa®). It works with a frequency of 433 MHz, maximum power up to 100 mW and a power gain of up to + 20dBm. The module has a built-in antenna, but it is possible to connect an external antenna (MHF connector). The module has a connector in accordance with the Grove standard. Seeed studio 113060007

The adapter is a useful tool that expands the USB Type-C port on your phone with a 3.5 mm audio jack port, allowing you to simultaneously connect a power source and a speaker device. Compatible with devices without a headphone connector, allows charging with a current of 2 A and is easy to store. Akyga AK-AD-62

High-quality, aesthetically made USB 3.0 HUB with a built-in 10/100/1000Mbps network card. Akyga AK-AD-32

Step-Down converter with input voltage up to 36 V which effectively reduces it to 3.3 V, while maintaining current up to 500 mA. Pololu 2842

The Akyga AK-AD-31 network card adapter converts USB 3.0 to RJ45, enabling a fast network connection up to 1000 Mbps, ideal for laptops without a built-in network card or with a damaged LAN port, compatible with many operating systems. Akyga AK-AD-31

The compact (0.4″ × 0.5″) D24V5F15 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 15 V while allowing for a maximum output current of 500 mA. Pololu 2847

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

Stereo audio amplifier with Bluetooth 4.0 communication. It can be powered with 12 V and has two 25 W outputs

Module with a stepper motor driver based on the DRV8825 system. allows the bipolar motor to be supplied with current up to 1.5 A per phase, without the use of a heat sink. The system can be supplied with voltage up to 45 V. Pololu 2987

Grove - ORP Sensor Kit Pro is an advanced liquid ORP measurement kit that measures water quality from -2000 mV to +2000 mV. With a 5-meter IP68 probe and compatibility with Arduino and XIAO, it is ideal for monitoring aquatic environments, wastewater treatment and aquaculture.

Module with 11-channel AS7341 sensor that allows to detect light in different wavelength ranges (color detection). It communicates via the I2C interface. Waveshare AS7341 Spectral Color Sensor

A module enabling the conversion of input voltage in the range from 1.8 V to 5.3 V into the appropriate negative output voltage. It offers high efficiency in excess of 80%, making it ideal for applications where a lower power negative supply is required, such as biasing sensors or op-amp circuits. Pololu 2839

This disc load cell (sometimes called a strain gauge) can translate up to a whopping 200kg of pressure (force) into an electrical signal. Each load cell is able to measure the electrical resistance that changes in response to, and proportional of, the strain (e.g. pressure or force) applied to the disc. SEN-13332

Module with BDS/GNSS AT6558 receiver. It can receive data from six location systems simultaneously: GPS, GLONASS, Galileo, QZSS, SBAS and BeiDou. It communicates via the UART interface. DFRobot TEL0132

HDMI cable Akyga ver. 1.4 with a length of 5 m

The Akyga AK-ND-C14 USB-C adapter allows you to use USB-C PD chargers in older Sony Vaio laptops with a 6.5x4.4 mm connector. It works with Power Delivery technology, automatically adjusting the supply voltage. It is easy to use and allows you to adapt your devices to USB-C standards. Before use, make sure the power supply has the appropriate power. Akyga AK-ND-C14