The PiRelay is a Raspberry Pi relay add-on board which provides a solution for controlling high current/voltage devices and makes your home appliances intelligent.

It's a nice solution for controlling devices that can't be directly controlled by the Raspberry Pi's Digital I/Os (GPIO). The standardised HAT form factor enables a smooth connection with Raspberry Pi.

The board includes indicator LEDs for easy debugging and can switch loads of up to 240VAC/7A, 125VDC/10A.

Features

• Control 4 appliances
• Relay status indicators
• Compatible with Raspberry Pi 4, 3B+, 3, 2, Zero
• 40-pin stacking header
• Control PiRelay through PiRelay mobile app
• Make your home IoT enabled

Package contents

• 1 x PiRelay HAT
• 2 x Standoffs

Resources

• Example Code, Python Library, Instruction Manual and Schematic here
• Tutorial video

On the board

Specifications

• 4 High-quality relays - loads up to 240VAC/7A, 125VDC/10A
• Standardized HAT shape and design
• LED status indicators for each relay
• 40-pin stacking header for accessing GPIO
• Connectivity of the Relay with Raspberry Pi without GPIO
  • Pin 2-> 5V
  • Pin 6->GND
  • Pin 7-> Relay 4
  • Pin 11->Relay 3
  • Pin 13-> Relay 2
  • Pin 15-> Relay 1
• Connectivity using the stack method:
  • GPIO 4, GPIO 17, GPIO 27 and GPIO 22 are used for controlling Relay. The user can remove the relay jumper and select a custom GPIO pin
• Relay pins - COM, NO (Normally Open), and NC (Normally Closed) are available for each relay
• Comes with development resources, including examples in python
• Control through PiRelay app on Andriod