A quad-channel relay module (5V) is an electronic device that provides four independent relays, each with a 5-volt coil, allowing you to control and switch four separate high-power electrical circuits. These relay modules are commonly used in various electronic and electrical applications for remotely or automatically controlling devices.
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Key Features:-
Quad Relays: The module includes four separate relays, each with its own set of contacts. These relays can be controlled independently, enabling the switching of four different high-power devices or circuits.
Coil Voltage: The quad-channel relay module is designed to operate with a 5-volt DC input voltage for the relay coils. Applying a 5V voltage to a specific relay's coil will energize that relay, causing its contacts to change state.
Input Signals: To control the relays, the module typically provides input signal pins or terminals that accept low-voltage control signals (e.g., 3.3V or 5V) from a microcontroller, sensor, or other digital or analog source. Applying or removing the input signal toggles the corresponding relay.
Terminal Contacts: The relay module includes terminal contacts (screw terminals or pin headers) for each relay, allowing you to connect the high-power circuits or devices you want to control. These terminals are used to switch the electrical loads on or off.
LED Indicators: Many relay modules include LED indicators for each relay to provide visual feedback on the state of the relays. LEDs may light up when the relays are energized (closed) and turn off when the relays are de-energized (open).
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