NOYITO 4-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch bee Specification:8 pcs screws designThread Size:

Specification:8 pcs screws designThread Size: M4Color: RedMaterial: Aluminum AlloyConnection Diameter: 6mm to 6mmTotal Length: 20mm /0

eveday use or any occasions

including our Bluetooth Sport communication devices

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NOYITO 4-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch bee Specification:8 pcs screws designThread Size:NOYITO 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