Sure! K2 (part number SRD-05VDC-SL-C) is a relay, which is an electrically operated switch. Here's a breakdown of what it does and its important features:
Function: A relay allows a low-power signal to control a higher-power circuit. This particular relay uses a 5V DC signal to control its switching action.
Pins and Their Functions:
Pin 1 (A): Connects to the relay's coil. When 5V is applied across the coil (between pins 1 and 4), it magnetizes and pulls the switch to connect or disconnect the circuit.
Pin 2 (L1): One of the common terminals for the switch.
Pin 3 (L2): Another common terminal, often used for normally closed (NC) or normally open (NO) configurations.
Pin 4 (COM): The common terminal for the relay coil.
Pin 5 (B): Generally used as another terminal for switching purposes.
Operation:
When 5V DC is applied between pins 1 (A) and 4 (COM), it energizes the coil inside the relay. This causes the internal contacts to switch positions, allowing current to flow through the connected high-power circuit (e.g., between L1 and L2, or L1 and COM depending upon relay configuration).
Typical Uses:
Isolation: Relays electrically isolate the low-power driving circuit (e.g., a microcontroller) from the high-power circuit it controls.
Switching: Suitable for switching AC or DC loads like lights, motors, or other devices from a digital control signal.
Would you like suggestions on how to wire or integrate this relay in your project?
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