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sb components PiRelay 4 Channel Relay Shield for Raspberry Pi, Relay HAT Expansion Relay Board for Raspberry Pi 4B/3B+/3B/2B/B+/A+ | Power Relay Module for Raspberry Pi : Amazon.in: Computers & Accessories
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Amazon.com: Raspberry Pi Relay
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Electronics-Salon 4 DPDT Signal Relay Module Board, DC 12V Version, for Arduino Raspberry-Pi 8051 PIC.: Amazon.com: Industrial & Scientific
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Yiqigou 5V 12V 16-Channels Relay Module Driver Board Module with Optocoupler for Arduino Raspberry Pi 51 AVR ARM PIC 5V: Components: Amazon .com.au
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