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Amazon.com: KeeYees 5pcs 1 Channel 5V Relay Module Board Shield KY-019 LED Indicator for Arduino + 3pcs 20CM 10Pin Female Male Jumper Wires : Electronics
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Amazon.com: DAOKI 5 PCS 5v Relay Module for Arduino ARM PIC AVR MCU 5V Indicator Light LED 1 Channel Relay Module Works with Official Arduino Boards : Industrial & Scientific
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AZDelivery 4 Channel Relay Module DC 5V with Optocoupler Low-Level Trigger Relay Shield Board compatible with Arduino Including E-Book! : Amazon.co.uk: Electronics & Photo
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Amazon.com: WINGONEER 5PCS KY-019 5V One Channel Relay Module Board Shield for PIC AVR DSP ARM for Relay : Electronics
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Amazon.com: SunFounder Relay Module Compatible with Arduino and Raspberry Pi 5V DC Trigger by HIGHLO (HIGH Trigger) : Electronics
Amazon.com: Youngneer 12v Relay Board Relay Module 1 Channel Opto-Isolated High or Low Level Trigger : Industrial & Scientific
