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is it possible to power arduino and a 12v pump by a single 12v power source - Project Guidance - Arduino Forum
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Amazon.com: DGZZI 2PCS 12 V to 3.3 V / 5 V / 12 V DC-DC Voltage Converter Multi-Output Step-Down Power Supply Module for Arduino : Electronics
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1pcs/ac 100v-240v Converter Adapter Dc 12v 2a Power Supply Us Plug Dc 5.5mm X 2.1mm 1000ma For Arduino Uno Mega - Ac/dc Adapters - AliExpress
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