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Scriptronics® 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger Compatible with Arduino Raspberry pi ARM AVR (with User Manual) : Amazon.in: Industrial & Scientific
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1 one Channel Relay Switch Module 5V Low Level Trigger Relay Expansion Board for Arduino UNO R3 DSP ARM PIC AVR STM32 Raspberry Pi 4pcs: Amazon.com: Industrial & Scientific
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Physical switch + relay + arduino nano looking for a sketch - Need Help With My Project - Blynk Community
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