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RPi Relay Board
RPi Relay Board
Raspberry Pi Expansion Board, Power Relay
The RPi Relay Board gives your Pi the ability to control high voltage/high current devices, easily makes normal home appliances become intelligent.
RPi Relay Board 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, prevents interference from high voltage circuits
Onboard LEDs for indicating relay status
Relay control jumper, allows controlling relays via custom pins other than 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
Photos
Note : the Pi in the photos is NOT included.
Dimensions
Resources
Wiki : www.waveshare.com/wiki/RPi_Relay_Board
Package Content
Weight: 0.061 kg
RPi Relay Board x 1 RPi screws pack (2pcs) x 1
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
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rgb(0, 0, 0); height: 19.5972px; text-align: center; width: 100%;\"\u003eStandard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); height: 19.5972px; text-align: center; width: 100%;\"\u003eHigh quality relays, loads up to 5A 250V AC or 5A 30V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); height: 19.5972px; text-align: center; width: 100%;\"\u003ePhoto coupling isolation, prevents interference from high voltage circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); height: 19.5972px; text-align: center; width: 100%;\"\u003eOnboard LEDs for indicating relay status\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); height: 19.5972px; text-align: center; width: 100%;\"\u003eRelay control jumper, allows controlling relays via custom pins other than default pins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1944px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); height: 39.1944px; text-align: center; width: 100%;\"\u003eComes with development resources, including examples in wiringPi, WebioPi, shell, Python, and bcm2835\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eWhat's on the Board\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/RPi-Relay-Board\/RPi-Relay-Board-intro.jpg\" alt=\"Raspberry Pi Expansion Board on board resource\"\u003e\u003c\/p\u003e\n\u003ctable height=\"227\" style=\"border-collapse: collapse; width: 82.26%; margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 12px; vertical-align: top; width: 100%;\"\u003e\n\u003col style=\"margin: 0; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaspberry Pi GPIO interface:\u003c\/strong\u003e for connecting Raspberry Pi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay screw terminal:\u003c\/strong\u003e for connecting target devices\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRelays\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhotocoupler:\u003c\/strong\u003e PC817\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay indicator\u003c\/strong\u003e\n\u003cul style=\"margin-top: 5px; padding-left: 20px;\"\u003e\n\u003cli\u003eLED on: relay NC is opened, NO is closed\u003c\/li\u003e\n\u003cli\u003eLED off: relay NC is closed, NO is opened\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower indicator\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay control jumper\u003c\/strong\u003e\n\u003cul style=\"margin-top: 5px; padding-left: 20px;\"\u003e\n\u003cli\u003eShort the jumper: control the relays by default I\/Os used in the example code\u003c\/li\u003e\n\u003cli\u003eOpen the jumper: control the relays by custom I\/Os through jumper wires\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003ePhotos\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 81.9%; height: 126px; margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 146.069px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); width: 24.1587%; height: 146.069px;\"\u003e \u003cimg alt=\"Raspberry Pi Expansion Board\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/RPi-Relay-Board\/RPi-Relay-Board-1_160.jpg\"\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); width: 24.3389%; height: 146.069px;\"\u003e \u003cimg alt=\"Raspberry Pi Expansion Board\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/RPi-Relay-Board\/RPi-Relay-Board-2_160.jpg\"\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); width: 25.4207%; height: 146.069px;\"\u003e \u003cimg alt=\"Raspberry Pi Expansion Board\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/RPi-Relay-Board\/RPi-Relay-Board-3_160.jpg\"\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); width: 25.9615%; height: 146.069px;\"\u003e \u003cimg alt=\"Raspberry Pi Expansion Board\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/RPi-Relay-Board\/RPi-Relay-Board-4_160.gif\"\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eNote : the Pi in the photos is NOT included.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eDimensions\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/RPi-Relay-Board\/RPi-Relay-Board-size.jpg\" alt=\"RPi Relay Board board dimensions\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eResources\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eWiki : \u003ca href=\"http:\/\/www.waveshare.com\/wiki\/RPi_Relay_Board\" id=\"tab-wiki\" target=\"_blank\"\u003ewww.waveshare.com\/wiki\/RPi_Relay_Board\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003ePackage Content\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eWeight: \u003c\/strong\u003e0.061 kg\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eRPi Relay Board x 1\u003cbr\u003eRPi screws pack (2pcs) x 1\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/Screenshot_9-1-2026_105019_www.waveshare.com.jpg?v=1767955831\" alt=\"\"\u003e\u003c\/p\u003e","published_at":"2026-01-21T10:40:14+05:30","created_at":"2026-01-09T15:51:23+05:30","vendor":"Waveshare","type":"Relays","tags":["Automation Board","DIY Electronics","Embedded Systems","GPIO Expansion","High Voltage Control","Home Automation","Power Relay Board","Raspberry Pi Relay","relay 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style=\"text-align: center;\"\u003eRPi Relay Board\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eRaspberry Pi Expansion Board, Power Relay\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThe RPi Relay Board gives your Pi the ability to control high voltage\/high current devices, easily makes normal home appliances become intelligent.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eRPi Relay Board Features\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 81.9%; height: 118px; margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); height: 19.5972px; text-align: center; width: 100%;\"\u003eStandard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); height: 19.5972px; text-align: center; width: 100%;\"\u003eHigh quality relays, loads up to 5A 250V AC or 5A 30V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); height: 19.5972px; text-align: center; width: 100%;\"\u003ePhoto coupling isolation, prevents interference from high voltage circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); height: 19.5972px; text-align: center; width: 100%;\"\u003eOnboard LEDs for indicating relay status\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); height: 19.5972px; text-align: center; width: 100%;\"\u003eRelay control jumper, allows controlling relays via custom pins other than default pins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1944px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); height: 39.1944px; text-align: center; width: 100%;\"\u003eComes with development resources, including examples in wiringPi, WebioPi, shell, Python, and bcm2835\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eWhat's on the Board\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/RPi-Relay-Board\/RPi-Relay-Board-intro.jpg\" alt=\"Raspberry Pi Expansion Board on board resource\"\u003e\u003c\/p\u003e\n\u003ctable height=\"227\" style=\"border-collapse: collapse; width: 82.26%; margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 12px; vertical-align: top; width: 100%;\"\u003e\n\u003col style=\"margin: 0; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaspberry Pi GPIO interface:\u003c\/strong\u003e for connecting Raspberry Pi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay screw terminal:\u003c\/strong\u003e for connecting target devices\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRelays\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhotocoupler:\u003c\/strong\u003e PC817\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay indicator\u003c\/strong\u003e\n\u003cul style=\"margin-top: 5px; padding-left: 20px;\"\u003e\n\u003cli\u003eLED on: relay NC is opened, NO is closed\u003c\/li\u003e\n\u003cli\u003eLED off: relay NC is closed, NO is opened\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower indicator\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay control jumper\u003c\/strong\u003e\n\u003cul style=\"margin-top: 5px; padding-left: 20px;\"\u003e\n\u003cli\u003eShort the jumper: control the relays by default I\/Os used in the example code\u003c\/li\u003e\n\u003cli\u003eOpen the jumper: control the relays by custom I\/Os through jumper wires\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003ePhotos\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 81.9%; height: 126px; margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 146.069px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); width: 24.1587%; height: 146.069px;\"\u003e \u003cimg alt=\"Raspberry Pi Expansion Board\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/RPi-Relay-Board\/RPi-Relay-Board-1_160.jpg\"\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); width: 24.3389%; height: 146.069px;\"\u003e \u003cimg alt=\"Raspberry Pi Expansion Board\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/RPi-Relay-Board\/RPi-Relay-Board-2_160.jpg\"\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); width: 25.4207%; height: 146.069px;\"\u003e \u003cimg alt=\"Raspberry Pi Expansion Board\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/RPi-Relay-Board\/RPi-Relay-Board-3_160.jpg\"\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); width: 25.9615%; height: 146.069px;\"\u003e \u003cimg alt=\"Raspberry Pi Expansion Board\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/RPi-Relay-Board\/RPi-Relay-Board-4_160.gif\"\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eNote : the Pi in the photos is NOT included.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eDimensions\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/RPi-Relay-Board\/RPi-Relay-Board-size.jpg\" alt=\"RPi Relay Board board dimensions\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eResources\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eWiki : \u003ca href=\"http:\/\/www.waveshare.com\/wiki\/RPi_Relay_Board\" id=\"tab-wiki\" target=\"_blank\"\u003ewww.waveshare.com\/wiki\/RPi_Relay_Board\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003ePackage Content\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eWeight: \u003c\/strong\u003e0.061 kg\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eRPi Relay Board x 1\u003cbr\u003eRPi screws pack (2pcs) x 1\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/Screenshot_9-1-2026_105019_www.waveshare.com.jpg?v=1767955831\" alt=\"\"\u003e\u003c\/p\u003e"}
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