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Raspberry Pi Relay Board
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£17.30
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Awesome Extras
The Raspberry Pi Relay Board gives your Pi the ability to control high voltage/high current devices, easily making normal home appliances become intelligent.
Features
- Standard Raspberry Pi 40PIN GPIO extension header
- Supports Raspberry Pi 2/3/4
- 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 you 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
What's on the 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 by custom I/Os through jumper wires
Resources
Product WiKi: https://www.waveshare.com/wiki/RPi_Relay_Board
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4.82
Based on 22 reviews
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Product Reviews
Raspberry Pi Relay Board
Great hat, works as expected. I have paired it with Codec Zero and they work together with no issues. Example code provided does not work with new rpiOS and RPi5 due to RPi architecture changes, but there are some new libraries that support new architecture that you will be able to use in order to work with this hat.
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1 year ago
Raspberry Pi Relay Board
Does what I expected.
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1 year ago
Raspberry Pi Relay Board
First time I've ventured into raspberry pi automation and used this to control a string of outside lights.
The product arrived securely packaged and came with an excellent online reference as well as diagrams on the board itself to show the relay open and closed positions which really helps when connecting the mains power.
The relay board itself is robust and the connections into the relay clamp the cable rather than being a screw. This makes the connection extremely secure.
Very pleased with product and excellent value for money
2 people found this review helpful.
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3 years ago
Raspberry Pi Relay Board
Very easy to set up electrically and mechanically.
Programming easy to switch the relays.
Adequate power rating of the switches.
I have this set up now in the airing cupboard with relayas controlling
-. Boiler on off
-. Boiler pump on off
-. Heating system circ pump on off
The inputs are a temp sensor on the hot water tank and switch inputs from room temperature controllers - those 7 day programmable type.
So now the pi minimises the temperature of the hot water and the pi can also be set to not put heating (or hot water) on (not at all or not much depending on season) when we are away.
Uses python published in github.
3 people found this review helpful.
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3 years ago
Raspberry Pi Relay Board
really useful board.
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3 years ago
Raspberry Pi Relay Board
The board works well. I mostly followed the instructions at https://www.waveshare.com/wiki/RPi_Relay_Board and I am using the board to press buttons (by shorting them) on various devices
2 people found this review helpful.
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3 years ago
Raspberry Pi Relay Board
would love to see the independent input connectors like the 8 channel version
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3 years ago
Raspberry Pi Relay Board
Easy to fit as a hat on the Pi (or separately with jumper cables) and to attach the switched devices. Example code is available from the product wiki linked at the bottom of the advert. The link to 'Demo Code' is at the bottom of the wiki page, and the code includes python & shell scripts. The code switches the relays on & off in succession & flashes the appropriate lights so you know everything is working.
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3 years ago
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