soros uart kettős Ethernet wifi modul hlk-rm04 két HLK-RM04 soros porttal
serial uart dual Ethernet wifi module hlk-rm04 with two serial port HLK-RM04
Customer please note: Recently, many customers pick the wrong power supply cause the module to burn, the module can only be connected to 5V power supply, do not connect other power greater than 5V, otherwise it will burn!  
 
 
 
 
 
32883163878 - allelectr