Description Unit MQTT-PoE is an Ethernet MQTT communication module that combines PoE power supply with the W5500 Ethernet controller. It uses a UART communication interface controlled by AT commands and integrates an RJ45 adaptive 10/100M Ethernet port for stable wired network communication. The module supports 4 Topic subscriptions and is designed for low-latency, high-stability MQTT data communication. Compared with Unit MQTT, this PoE version adds PoE power supply capability with a load capacity of 1.2A@5V (6W), making it suitable for remote data collection, device data cloud upload, industrial automation, security monitoring, and automatic measurement and control systems. Features W5500 Ethernet controller: integrates an embedded W5500 Ethernet chip. RJ45 Ethernet port: supports adaptive 10/100Mbps wired Ethernet connection. PoE power supply: supports 1.2A@5V output capability with 6W maximum power. Ethernet MQTT communication: designed for MQTT data transmission over wired Ethernet. 4 Topic subscriptions: supports up to 4 MQTT Topic subscriptions. Low latency: official specification lists latency as
