100% brand new and high qualitRela Shield (ie 5V Quad Rela Module) is a small current signal control power equipment commonl used electronic module, enabling high-power single-chip control devices are widel used in SCM sstem to make smart home project; and can be directl plugged into the compatible the use of various tpes of motherboards, eliminating the patch cable troubles.Special Note: When using the For UNO board connected to it, because UNO USB interface is extremel high, should avoid green terminals are shorted its shell.Rela Shield Interface: (the last picture show)Rela: sk- 5V DC rela , model HJR-4102-L-5V, which Rela1 behalf of the 1st rela , the other and so on.Power Interface : 5V DC power interfaceIndicator: four lights are red when the rela is driven high , the corresponding indicator will light up .Rela Terminals: Terminal high-power , high-current high voltage can be connected to the device . The 1st foot ( i.e. NOx) is a normall open pin , NCx pin is normall closed , COMx is common, i.e., when the rela is not driven , NOx and COMx open between two pins , NCx and COMx connection ; When the rela (x) control signal pin is high drive relas , NOx and COMx connection open between NCx and COMx.After you purchase our products, we will provide you with the most sincere service and let you enjoy shopping!
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