4-Channel Relay

The 4-Channel Relay is a board I/O module in the LabWired part catalog. Its catalog type is relay-4ch. It connects to the MCU over GPIO. The catalog gives a supply range of 4.5–5.5 V. It has 6 pins. This part is its pins. There is no separate device model because the MCU’s own GPIO/PWM/ADC model already is the simulation.

Key facts

Category	Board I/O modules
Catalog type	relay-4ch
Interface	GPIO
Supply range	4.5–5.5 V
Pins	6

What LabWired simulates

4-Channel Relay pinout

• Power: VCC, GND
• GPIO: IN1, IN2, IN3, IN4

How to simulate the 4-Channel Relay in LabWired

1. Open the Playground at app.labwired.com and place an MCU board.
2. Add the 4-Channel Relay (catalog type relay-4ch).
3. Connect VCC and GND to the supply and ground of the board. Use a supply inside the catalog range of 4.5–5.5 V.
4. Connect IN1, IN2, IN3 and IN4 to free GPIO pins.
5. Run the firmware. It reads and drives these pins through the GPIO, PWM and ADC models of the MCU. The part has no separate device model.

Related Board I/O modules

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• Analog Joystick GPIO · Pins only, by design
• Vibration Sensor GPIO · Pins only, by design
• BLDC Hall Driver GPIO · Pins only, by design
• ULN2003 / 28BYJ-48 stepper GPIO · Built from the datasheet

All Board I/O modules · All parts

No manufacturer datasheet is indexed for this part yet, so none is linked here.