Hi-link HLK-RM04 wifi module with board

The HLK-RM04 Wireless Module is a versatile embedded communication module that bridges UART serial interfaces with WiFi and Ethernet networking, enabling traditional serial devices to communicate over modern networks without major redesigns. It is based on a compact integrated design with a built-in TCP/IP protocol stack, allowing transparent bidirectional data transmission between devices connected over WiFi, Ethernet, or serial lines.

This module supports standard IEEE 802.11b/g/n WiFi protocols in the 2.4 GHz band, providing reliable wireless communication for IoT systems, embedded controllers, and remote devices. In addition to wireless connectivity, the HLK-RM04 integrates Ethernet (10/100 Mbps) interfaces for wired networking, making it suitable for hybrid applications where both WiFi and LAN connectivity are required