Description:
100% brand new and high quality
Relay shields (such as 5V Quad Relay Modules) are common electronic modules, small current signal control power supply equipment, which is widely used in high output single chip control devices. Used in SCM systems to create smart home projects. Connect directly to various compatible types of motherboards to solve the trouble of patch cables.
Function:
1 Shielded interface and shape standard
2. Other stacking can be continued for expansion boards
3 Three M3 screw positioning holes for easy installation
4 High Drive (5V or 3.3V) Normal Open Contact Closure
5 Onboard Relay Indicator (Red)
Special Note: If you connect and use the For UNO board, the UNO USB interface is very high, please do not make the green terminals short circuit into the shell.
Relay Shield Interface: (last photo show)
Relay: Sky-5V DC Relay, Model HJR-4102-L-5V, Relay1 replaces the first relay and others.
Power Interface: 5V DC Power Interface
Indicator: 4 lights red when the relay is high and the corresponding indicators will light up.
Relay terminal: Terminal high output, high current and high voltage connection. The first foot (i.e. NOx) is normally open pin, NCx pin is normally closed, COMx is common, i.e. when the relay is not drived, NOx and COMx are open between two pins, NCx and COMx connection; if the relay (x) control signal pin is high dry relay, the NOx and COMx connections are open between NCx and COMx connections. in the USA.
Package included:
1 x 4 Channel 5v Relay Shield Module
2 x HJR 4102L 5V Relay