SOLVED) 5v relay not powering arduino or rest of system - Motors
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![SOLVED) 5v relay not powering arduino or rest of system - Motors](https://europe1.discourse-cdn.com/arduino/original/4X/2/b/b/2bbd39a94f9afc4ebb4bc74626f3f4b69d6c3bc3.jpeg)
Hello, This is my first arduino project and I need help Here's a pic of my system with the wiring. When I plug the arduino via USB, the system turns on, however when I plug the 12 v 5 amp power supply (where the 12v battery is in the diagram) nothing happens. As if the system is not plugged in at all.
![5v relay activation - General Electronics - Arduino Forum](https://europe1.discourse-cdn.com/arduino/optimized/4X/b/b/9/bb92d62bd0970cb8742838675db5c147425e265e_2_1024x768.jpeg)
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2PCS DC 5V 4 Channel Relay Module Shield Terminal Relay Board for Arduino UNO R3
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Voltage drop when using relay - Motors, Mechanics, Power and CNC - Arduino Forum
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Hiletgo 5V relay module, flyback and powering Q - General Electronics - Arduino Forum
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Help needed on connecting 5V relay module with Arduino - Motors, Mechanics, Power and CNC - Arduino Forum
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![Problem switching an AC 120v motor with relay - Motors, Mechanics, Power and CNC - Arduino Forum](https://europe1.discourse-cdn.com/arduino/optimized/4X/7/f/3/7f3131bec4989b64a1ce0e6477d0b83d62a37cbc_2_1024x1024.jpeg)
Problem switching an AC 120v motor with relay - Motors, Mechanics, Power and CNC - Arduino Forum