NA611-SA highly reliable WiFi serial server (RS485 ⇌ WiFi)

[Introduction]：NA611-SA is a high-performance and highly reliable WiFi serial server (RS485 ⇌ WiFi). Works in the 2.4G frequency band, realizes RS485 data to realize device networking data exchange through WiFi, supports IEEE802.11 b/g/n standard, supports 4-way Socket connection; supports Alibaba Cloud, Baidu Cloud, OneNet, standard MQTT protocol; supports TCP/ UDP/HTTP/MQTT multiple network communication protocols.