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Using a raspberry pi to control this 5v relay. Do I need a power source running into the relay? Or is my pi enough? : r/AskElectronics
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Amazon.com: Optocoupler-Isolated 2 Channel DC 5V Relay Module for Arduino Raspberry Pi MEGA 2560 DSP AVR PIC ARM MCU STM32, Electronic Experiment, Smart Home, Industrial Control, Robot : Electronics
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