NOYITO 4-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch June2023_cocoonwix 10 Pieces Stepper Motor Driver

10 Pieces Stepper Motor Driver Module with Heat Sink Compatible with Stepstick Stepper A4988 3D Printer Reprap

4V 500mAh Ni-MH Rechargeable (Type: AAAA*2 Battery cells

It is available for single and double

and any other unexpected weather conditions

Oversized 1/3-Cut tab

NOYITO 4-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch June2023_cocoonwix 10 Pieces Stepper Motor DriverNOYITO 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