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

Dual-band antenna operating in the 2.4 GHz or 5.8 GHz band. Works great with WiFi, Bluetooth or ZigBee. Uses the popular U.FL connector. SparkFun WRL-18087

LPT100 WiFi Module Mother Board

Diagnostic interface for wireless diagnostics of cars with OBD2 system. The device uses the popular 16-pin connector and is equipped with a Bluetooth 3.0 module. Vgate iCar2 ELM327

The USR-M100-EAU is a smart I/O gateway that combines the functions of a converter and a PLC controller, enabling efficient data collection and processing in industrial applications. With advanced communication features and flexibility in integrating with existing systems, it is an ideal choice for use in smart buildings, industrial automation, and agriculture. USR-M100-EAU

UART - Ethernet converter enabling two-way communication between devices equipped with UART TTL ports and the Ethernet network. It is visible in the system as a virtual COM port and configured via the website. USR-K3

Module with RFID 125 KHz tag reader. It allows reading 125KHz RFID tags / cards (EM4100 standard) from a maximum distance of 7 centimeters. The module has a connector in accordance with the Grove standard. Seeed Studio 113020002

Overlay module for Raspberry Pi with GSM, GPRS, GNSS and Bluetooth

Wireless data transmission module operating at 433 MHz. It is powered with the voltage of 12 V

Board for applications in the area of the Internet of Things (IoT). The module is based on the ESP-WROOM-32E system with 240 MHz clock, equipped with 4 MB Flash and 520 KB SRAM, as well as WiFi and Bluetooth communication. DFRobot DFR0654

RN-171 Series 54 Mbps 2.4GHz SMT WiFly GSX 802.11 b/g Wireless LAN module, MICROCHIP, RoHS

Compact and energy-efficient Meshtastic node designed for mobile field applications, integrating a LoRa module (862-930 MHz), L76K GPS and nRF52840 microcontroller. The device offers a ready-to-use, no-programming, power supply from USB-C, solar panel or battery, and a 1.3" OLED display for real-time monitoring. With Bluetooth 5.0 connectivity, Grove interface and support for multiple navigation systems, it is a reliable tool for building decentralized mesh networks, monitoring location and expanding IoT projects. Seeed Studio 114993648

Module with a 433 MHz radio receiver for M5Stack sets. Based on the SYN531R chip, it has a built-in PCB antenna. M5Stack U113

The SenseCAP M2 Multi-Platform LoRaWAN Indoor Gateway is a universal LoRaWAN® gateway supporting network servers such as AWS, TTN and ChirpStack, operating in the 865-923 MHz (EU868) bands. It offers a range of up to 10 km and stable data transmission, ideal for applications in smart buildings, environmental monitoring and precision agriculture. Seeed Studio 114992981

SPWF01SC are intelligent Wi-fi modules. Thanks to the Plug-And-Play solution and the autonomous 802.11 b/g/n solution, the module has the ability to easily integrate the wireless function with existing or new products.

Bluetooth 4.0 BLE module powered with 3.3V voltage based on SOC TI CC2541 (On Chip). The module has a range of up to 10m and communicates via the UART interface.

Internal antenna Bluetooth, ZigBee, WLAN, chip SMD, 2.45GHz, gain 1.5dBi, dimension 9.5x2.1x1mm, Rainsun, RoHS

Wi-Fi bridge for short to medium-range network transmission. With the advanced iPoll 3 protocol and support for multiple services, it is ideal for various video surveillance scenarios. Its IP-66 rated housing ensures weather resistance

BLE4.0 Bluetooth 2.4G Wireless Module, nRF51822 Onboard. Core51822

UART - Ethernet converter enabling two-way communication between devices equipped with UART TTL ports and the Ethernet network. It is visible in the system as a virtual COM port and configured via the website. USR-K7