This 4-channel relay expansion board is designed specifically for Raspberry Pi, utilizing the 40-pin GPIO interface for seamless integration. Fully compatible with Raspberry Pi Zero, Zero W, Zero WH, 2B, 3B, 3B+, and 4B models, it offers exceptional versatility across a range of Raspberry Pi platforms. The board features four high-quality relays, each independently controllable, allowing precise on/off switching for connected devices, making it an ideal solution for home automation, robotics, and other IoT applications.
Product Features
Raspberry Pi Compatibility: Designed with a standard 40-pin GPIO expansion header, providing seamless integration with a wide range of Raspberry Pi models.
High-Performance Relays: Equipped with premium relays capable of switching up to 5A at 250V AC or 5A at 30V DC, making it suitable for controlling a variety of devices with high reliability.
Isolation Protection: Incorporates photo-coupler isolation to protect the board from high-voltage circuit interference, ensuring stable and secure operation in demanding environments.
Status Indication: Features onboard LEDs that provide real-time visual feedback for the operational state of each relay, enhancing usability.
Customizable Control: Includes relay control jumpers that allow flexible configuration, enabling users to assign custom GPIO pins for relay control instead of default settings.
Comprehensive Development Support: Offers extensive development resources, including example code and library support, simplifying integration with popular platforms and frameworks for streamlined project development.
Product Specifications
Dimensions
65mm(L) x 56mm(W)
Optocoupler
LTV-357T-B-IN
Supply voltage
3.3V&5V
Weight
Net Weight:57g
Raspberry Pi Compatibility
Onboard standard 40-pin GPl0 extension header, ensuring seamless integration with Raspberry Pi series boards
Featuring high-performance relays capable of managing up to 5A at 250V AC or 5A at 30V DC, this board is ideal for controlling a diverse array of devices with precision and reliability
It incorporates photo-coupler isolation, effectively protecting the board from high-voltage circuit interference, ensuring stable and secure operation even in demanding environments
Status Indication
This 4-channel relay module is equipped with relay status indicators, providing a clear and convenient way to monitor the operating state of each relay in real time. A designated pin can be selected using the onboard DIP switch, where the "ON" position links the relay to the specified control pin. Conversely, setting the switch to "OFF" allows the user to access alternate pins through jumpers, offering enhanced flexibility for various applications
Resource Profile
① Relay Output Terminal: Provides connections for controlling external devices through the relay's normally open (NO) or normally closed (NC) contacts.
② Relay: High-quality relay module capable of handling up to 5A at 250V AC or 5A at 30V DC, ensuring reliable control for a wide range of devices.
③ Specified Pin Selection Jumper Header: In the shorted position, the relay connects to the specified control pin; in the open position, users can utilize jumpers to connect the relay to alternative control pins, offering enhanced configuration flexibility.
④ Raspberry Pi 40-pin GPIO Interface Header: Ensures seamless integration with Raspberry Pi boards for straightforward control and communication.
⑤ Relay Working Indicator LED: When illuminated, it indicates that the relay's normally open (NO) contact is closed, and the normally closed (NC) contact is open. When off, it signifies the normally open (NO) contact is open, and the normally closed (NC) contact is closed, providing clear and intuitive relay status feedback.
Dimensions
Applications
This 4-channel relay module is designed for a wide range of applications, including PLC automation equipment control, industrial system management, Internet of Things (IoT) implementations, experimental development for electronics enthusiasts, and various circuit modification projectsWIKI
