SIM800L module with support for four-band GSM/GPRS network. Has a MicroSD card slot. Module controlled by AT commands.

Bluetooth 5.0 module based on the BT401 chip. It allows you to send audio and support microSD cards up to 128 GB. DFRobot DFR0781

RFID Reader/Transponder IC 13.56MHz ISO 14443 I2C, SPI, UART, -25..85C, VFQFN32, NXP

Industrial Ethernet switch with 8 ports 100/1000M, characterized by a solid aluminum housing with IP40 protection, which provides dust resistance and effective heat dissipation. With a wide operating temperature range (-40℃ to +85℃), redundant power supply (9.6V - 60V DC) and 6KV surge protection, it is an ideal solution for demanding industrial environments such as monitoring systems, rail transport and renewable energy. PUSR USR-ISG008

Protective enclosure made of PC+ABS material for Wio Tracker L1 Pro, providing increased resistance to mechanical damage, temperature up to 80°C and protection against scratches and dust, mounted using M2 screws. Seeed Studio 100078341

A LoRa communication node for mesh networks, enabling long-range data transmission up to 8-9 km in open terrain. Equipped with the XIAO nRF52840 Plus module, LoRa SX1262, and GPS L76K, it ensures efficient communication and precise positioning. Powered by a 5W solar panel and four 18650 batteries, it allows for long-term operation in the field without access to the grid. Seeed Studio 100023690

Set with SIMCom 5G SIM8202G-M2 module designed to work with the Raspberry Pi minicomputer. It supports 5G SA or NSA networks and is backwards compatible with 4G and 3G networks. Waveshare SIM8202G-M2 5G HAT (B)

Portable development device based on the ESP32-S3 microcontroller combines an SX1262 868 MHz LoRa transceiver, a 2.8" IPS color display, a full QWERTY keyboard, and a trackball controller in a compact enclosure. Factory-installed LILYGO Factory Firmware allows immediate use without manually flashing the base firmware. The package includes an 868 MHz LoRa FPC antenna, a power cable, and a 1×6 pin header. The device is designed for LoRa communication terminals, portable messaging devices, IoT projects, and custom applications based on the ESP32-S3 microcontroller. LILYGO TTGO T-Deck 868 MHz Black LILYGO Factory Firmware

A UART-Ethernet converter that provides easy communication between the UART TTL serial interface and RJ45 Ethernet. Configurable via website or AT commands. Waveshare UART TO ETH

A module that combines GSM/GPRS/GNSS and BT 3.0 technologies. It is available in a small, easy to solder LCC housing and has a low power consumption up to 1.2 mA. Quectel MC60CA

Wi-Fi module based on the ESP8266 system - simplicity of use (communication through UART, supports AT commands), 3.3V power supply, support for WPA / WPA2 encryption - these features make the EPS8266 module applicable anywhere, where reliable and effective data transmission. The module is not equipped with an antenna, it should be attached using the U.FL connector. ESP-05

The module with the HC-05 transceiver makes it easy to add Bluetooth communication to an existing project. The system is controlled by exchanging AT commands (UART bus). FC-114

NFC module designed for Arduino. Meets the standards of reader mode, P2P mode and card emulation mode. The board has an integrated RF antenna. NXP OM5578/PN7150ARDM

An 8-channel LoRaWAN gateway designed for indoor IoT installations, based on the Semtech SX1302 chip and the MediaTek MT7628 processor. It provides a communication range of up to 10 km and supports the EU868 and US915 bands, enabling simultaneous operation with multiple end devices. The gateway offers Wi-Fi, Ethernet, Bluetooth, and optional 4G connectivity and is compatible with TTN and ChirpStack platforms. Elecrow ThinkNode G1

Antenna with an SMA male connector working in the 868 MHz frequency band. It has a gain of 3 dBi. Comes with an SMA - u.FL adapter

The Vtec by BLOW Bluetooth 4.0 OBD2 diagnostic interface is an advanced tool for monitoring vehicle parameters and diagnosing faults. It allows reading and deleting errors, analyzing performance and controlling engine operation in real time. Thanks to its compatibility with Android, iOS, Windows and MacOS systems and support for popular diagnostic applications, it is a convenient solution for every driver who cares about the technical condition of their vehicle. Vtec iTRON by BLOW

Powerful, generic Wi-Fi+BT+BLE MCU modules that target a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming and MP3 decoding. Espressif ESP32-WROOM-32E 32MBit (4MB)

The module enables micro:bit, Raspberry Pi Pico, RP2040-based boards, and other controllers to connect to Wi-Fi networks and online services. Communication with the host board is handled through UART, while the pre-installed ESP-AT firmware allows network functions to be controlled using AT commands. Cytron GRV-WIFI-8266

NRF24L01 module with USB type A connector. It has a built-in antenna and a USB converter. Allows you to design and test 2.4 GHz radio communications using a PC

Compact and energy-efficient solution combining Bluetooth 5.0 and LoRa (862–930 MHz), ideal for IoT projects requiring long range and low power consumption. It uses the XIAO nRF52840 MCU with Cortex-M4 core and support for multiple interfaces and the LoRa SX1262 module for reliable wireless communication. The kit is perfect for applications such as Meshtastic, asset tracking, sensor networks or educational projects. Seeed Studio 102010710