SB Components Home Automation HAT for Raspberry Pi
Home Automation HAT for Raspberry Pi with two relays, rated 7A at 250V AC or 10A at 30V DC, for switching mains-powered appliances.
The SB Components Home Automation HAT is a Raspberry Pi add-on board with two relays, each rated for loads of 7A at 250V AC or 10A at 30V DC.
Overview
The HAT is designed to control mains-powered appliances from a Raspberry Pi, allowing up to two independent devices to be switched. It suits household and DIY automation projects, including smart home applications where a Raspberry Pi acts as the controller.
Key Features
- Dual relay control, allowing two appliances or circuits to be controlled independently
- Load capacity of 7A at 250V AC or 10A at 30V DC per relay
- Photo-coupling isolation using EL357NC optocouplers, separating the Raspberry Pi circuitry from the high-voltage side
- 40-pin stacking GPIO header for connection to the Raspberry Pi
- Screw terminal blocks for each relay and appliance wiring
- Onboard LEDs indicating power status and the active state of each relay
- Jumper for selecting the relay control pins
- Compatible with Raspberry Pi 2, 3, 4, and Zero models
Installation and Wiring
The board connects to the Raspberry Pi through its 40-pin stacking header. Appliance wiring is terminated at the screw terminal blocks provided for each relay, while the optocoupler isolation keeps the low-voltage computing side electrically separated from mains electricity.
Dimensions and Weight
The board measures 2.6 by 1.35 by 3.65 (width, depth and height) and weighs 83 g.
- Controlling mains-powered appliances
- Household automation projects
- DIY automation projects
- Smart home systems with a Raspberry Pi
- Relays: Two
- Load Capacity: 7A at 250V AC or 10A at 30V DC per relay
- Isolation: Photo-coupling using EL357NC optocouplers
- Connector: 40-pin stacking GPIO header
- Compatibility: Raspberry Pi 2, 3, 4, and Zero
- Terminals: Screw terminal blocks for each relay
- Special Feature: Onboard power and relay status LEDs
- Special Feature: Jumper for selecting relay control pins
- Width: 2.6
- Depth: 1.35
- Height: 3.65
- Weight: 83 g
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