Description

Create your DIY 3 channel remote control to ON-OFF three electrical devices from your Mobile application.The Waveshare 3 Channel Relay HAT Smart Home for Raspberry Pi 3 gives your Pi the ability to control high voltage/high current devices, which can be operated up to 230V AC 5A current easily makes normal home appliances become intelligent.
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What??s on the RPi Relay Board:

Raspberry Pi GPIO interface:?for connecting Raspberry Pi
Relay screw terminal:?for connecting target devices
Relays
Photocoupler:?PC817
Relay indicator

LED on: relay NC is opened, NO is closed
LED off: relay NC is closed, NO is opened

Power indicator
Relay control jumper

short the jumper: control the relays by default I/Os used in the example code
open the jumper: control the relays with custom I/Os through jumper wires

Features:

Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
High-quality relays, loads up to 5A 250V AC or 5A 30V DC
Photo coupling isolation, prevent interference from high voltage circuit
Onboard LEDs for indicating relays status
Relay control jumper, allows to control the relays by custom pins other than the default pins
Comes with development resources, including examples in wiringPi, WebioPi, shell, python, and bcm2835

Useful link:
To do the Software setup, please follow this tutorial.

Package Includes:
1 x Waveshare 3 Channel Relay HAT Smart Home for Raspberry Pi 3
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Note: Raspberry Pi Shown in Images is not included in the package you have to buy it seperately.