**Versatile Compatibility**: Compatible with Arduino and Raspberry Pi, this 5V 4-Channel Relay Module is perfect for DIY electronics projects, making it ideal for hobbyists and tech enthusiasts looking to expand their projects with ease. **Optocoupler Isolation for Stability**: Featuring optocoupler isolation, this module ensures stable performance and enhanced drive ability, providing reliable operation in various electronic applications. **Flexible Trigger Modes**: Offers both high and low-level trigger options, easily configurable through short-circuit caps, allowing for tailored control based on your project's specific needs. **User-Friendly Design**: Equipped with dual indicator lights for power and operation status, along with clearly labeled input and output terminals, making wiring and setup straightforward and hassle-free. **High-Quality Relay Components**: Built with genuine high-quality relays, ensuring durability and long-term reliability, this module is designed to handle demanding tasks in automated systems and smart home projects.
Description
Product parameters
1. Working voltage: 5v
Product Features
1. The use of genuine high-quality relay
2. Optocoupler isolation, drive ability, stable performance
3. Multi-operating voltage optional, multi-output optional
4. High and low starting mode can be set
5. Power supply, work dual indicator light
6. Input and output terminals for easy wiring
Product pin definition and function:
1. DC +: positive power supply (according to the relay operating voltage selection)
2. DC-: power supply ground
3. IN or INX: control signal input
4. NO or NOX: load access, normally open
5. COM or COMX: load access, common
6. NC or NCX: Load access, normally closed
Trigger Mode Configuration Description:
The module has a trigger level selection terminal,
each relay trigger level can be individually controlled,
through the short-circuit cap to control. COM side is common, in the middle;
When the LOW (L) terminal is connected to the common terminal,
it is a low level trigger; when the HIGH (H) terminal is connected to the common terminal,
it is a high level trigger.
When there is no voltage at both ends of the relay coil,
the relay has no action, and the common terminal is connected to the normally closed terminal;
when there is voltage at both ends of the relay coil,
the relay has action, and the common terminal is connected to the normally open terminal.