Relay Shield (i.e. 5V Quad Relay Module) is a small current signal control power equipment commonly used electronic module, enabling high-power single-chip control devices are widely used in SCM system to make smart home project; and can be directly plugged into the Arduino compatible the use of various types of motherboards, eliminating the patch cable troubles.
nModule features are as follows:
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1. STANDARD ARDUINO SHIELD INTERFACES AND SHAPE
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2. CAN CONTINUE TO STACK OTHER ARDUINO EXPANSION BOAR
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3. 3 M3 SCREW POSITIONING HOLES FOR EASY INSTALLATION
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4. HIGH DRIVE (5V OR 3.3V) NORMALLY OPEN CONTACT CLOSURE
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5. ONBOARD RELAY INDICATOR (RED)
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SPECIAL NOTE: WHEN USING THE ARDUINO UNO BOARD CONNECTED TO IT, BECAUSE UNO USB INTERFACE IS EXTREMELY HIGH, SHOULD AVOID GREEN TERMINALS ARE SHORTED ITS SHELL.
nRELAY SHIELD INTERFACE:
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- Relay: sky- 5V DC relay, model HJR-4102-L-5V, which Relay1 behalf of the 1st relay, the other and so on.
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- Power Interface: 5V DC power interface
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- Indicator: four lights are red when the relay is driven high , the corresponding indicator will light up .
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- Relay Terminals: Terminal high-power , high-current high voltage can be connected to the device . The 1st foot ( i.e. NOx) is a normally open pin , NCx pin is normally closed , COMx is common, i.e., when the relay is not driven , NOx and COMx open between two pins , NCx and COMx connection ; When the relay (x) control signal pin is high drive relays , NOx and COMx connection open between NCx and COMx
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Package includes:
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- 1PCS x 4 channel Relay Shield 5V Module
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