chen This user account status is Approved13 UCC11 VAR0 CONTEST Ucc Var Comments Juan (娟)is usually used as a girl name in China. On w5500 module UCC and juanfi It's a good reference for Node-RED^^ On Industrial Automation based on Node-RED / Particle Evaluation Board We will try our best to contact them. On Ethernet lighting controller & RT-thread+SAL+W5500 Ethernet Socket communication