NOYITO 4-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch bee you can also prepare them

you can also prepare them as reserve tools

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Specifications: Material: Metal Color: Silver Brand name: Homeswitch Voltage: AC 110V Speed: 4-5rpm Torque: 6KGF

eveday use or any occasions

NOYITO 4-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch bee you can also prepare themNOYITO 4 Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch Hardware introduction and description Board size: 56 x 63mm Board Interface Description: COM1: common; NC1: normally closed; NO1: normally open. COM4: common; NC4: normally closed; NO4: normally open. Communication protocol description: Default communication baud rate: 9600BPS Turn on the 1 channel relay switch: A0 01 01 A2 Turn off the 1 channel relay