Thing Plus Dual-Port Logging Shield Hookup Guide
Contributors:
Ell C, 
PaulZC
PaulZC 
Resources and Going Further
Need more information? Check out some of the links below:
Check out these other power related tutorials from SparkFun:
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Using the ESP32 to make a web-configured timed relay.
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Do you need to power a project with 12V and 5V from one wall adapter? The ATX power connector breaks out the standard 4-pin computer peripheral port for your 12V and 5V devices!
MicroMod Ethernet Function Board - W5500 Hookup Guide
Add Ethernet and PoE capabilities to your MicroMod project using the Ethernet Function Board - W5500.