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
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:
FemtoBuck Constant Current LED Driver Hookup Guide v13
The FemtoBuck board is a high-efficiency, single-channel constant-current LED driver.
Powering LilyPad LED Projects
Learn how to calculate how many LEDs your LilyPad project can power and how long it will last.
Wireless Joystick Hookup Guide
A hookup guide for the SparkFun Wireless Joystick Kit.
SparkFun 5V/1A LiPo Charger/Booster Hookup Guide
This tutorial shows you how to hook up and use the SparkFun 5V/1A LiPo Charger/Booster circuit.