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WAVESHARE

Raspberry Pi 8-ch Relay Expansion Board

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Multi-Brand Raspberry Pi Add on Boards (HATs) for everyday users

The Raspberry Pi 8-ch Relay Expansion Board by WAVESHARE is a mid-range multi-brand raspberry pi add on boards (hats) designed for everyday users. It features Item Type: Other Board and Board Type: Expansion Board.

₹2,403
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Total: ₹2,403
Buying tip: A well-rounded choice at a fair price. Recommended for most buyers.
Estimated delivery: 24 Aug7 Sept
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Quick Specs

Item Type: Other Board
Board Type: Expansion Board
Model No. / Name: Relay board
Relay Channels: 8
Power Supply Voltage (V): 3.3 to 5
Dimensions (L x W x H) mm: 232 × 72 (mm)

Ideal For

Everyday convenience
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About This Product

The Raspberry Pi 8-ch Relay Expansion Board by WAVESHARE is a mid-range multi-brand raspberry pi add on boards (hats) designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

  • Item Type: Other Board
  • Board Type: Expansion Board
  • Model No. / Name: Relay board
  • Relay Channels: 8
  • Power Supply Voltage (V): 3.3 to 5 — works with standard household power
  • Dimensions (L x W x H) mm: 232 × 72 (mm)
  • Contact Form: SPDT-NO,NC

Why Buy from Elecvora?

Elecvora sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

RPi Relay Board (B) - 8-Ch Relays Expansion Board for Raspberry Pi. Control high voltage products using your Raspberry Pi. Supports Raspberry Pi A+/B+/2B/3B/3B+. High-quality relays load up to 5A 250V AC or 5A 30V DC. Photocoupling isolation for interference prevention. Standard rail mount bottom case. Onboard LEDs for indicating relay status. Relay control pin selection jumper for custom pin control. Reserved control interface for working with controllers like PLC. Development resources and examples included.

Features:

  1. Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano
  2. High-quality relays, loads up to 5A 250V AC or 5A 30V DC
  3. Photo coupling isolation prevents interference from high-voltage circuit
  4. Standard rail mount bottom case
  5. Onboard LEDs for indicating relays status
  6. The relay control pin selection jumper allows controlling of the relays by custom pins other than the default pins
  7. Reserved control Interface, allows to work with controllers like PLC
  8. Comes with development resources, including examples in wiringPi, bcm2835, python, python-bottle (webpage control), and crontab (cron job)

 

Package Includes:

1 x Raspberry Pi 8-ch Relay Expansion Board

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.