ACS712 Low Current Sensor Hookup Guide
This Tutorial is Retired!
Note: This tutorial is for the ACS712 Current Sensor Breakout Boards. If you are using either of the newer ACS723 Breakout Boards, please refer to the new Current Sensor Breakout (ACS723) Hookup Guide.
View the updated tutorial: Current Sensor Breakout (ACS723) Hookup Guide
Contributors:
AGlass0fMilk
AGlass0fMilk Resources and Going Further
The ACS712 sensor is ideal if you need to measure a small to moderate amount of current, especially if it's AC current! For more information about the ACS712, check out the links below:
- ACS712 Datasheet
- SparkFun Hall-Effect Current Sensor Breakout - ACS712
- SparkFun Low Current Sensor Breakout - ACS712
If you don't need electrical isolation and want to measure smaller currents, check out the INA169 Breakout Board. And for even higher power applications, check out the Non-Invasive Current Sensor - 30A.
For more power related learning, check out the tutorials below:
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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!
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Did you know that most garage doors are at risk of a roll jam attack? Here we make a DIY garage door remote-control system that is much more secure than most commercial-ready products using the latest in ECC cryptography.
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This tutorial shows you how to hook up and use the SparkFun Thing Plus Dual-Port Logging Shield.