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Can the same 9V supply used to power Arduino, also be used on the output side of a relay? - Project Guidance - Arduino Forum
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pic - I want to have a 9v battery to give a 4.5v - 5v power supply? - Electrical Engineering Stack Exchange
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Kit Battery (9V Input Output 9V & 5V) to Breadboard: Buy Online at Best Price in Egypt - Souq is now Amazon.eg
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How to turn turn the 5V pin output signal into 9V and drive a motor? - General Electronics - Arduino Forum
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