Arduino Clampclamp ammeter
I am using an Arduino Uno as a watch dog for a project I a doing; its job is to monitor what is happening in the system and shut down the system if it is not operating within spec.
One of the parameters I need the Uno to watch for is voltage and amps. The system has a combination of 24V, 12V, and 5V components so it is essential that the voltage is monitored. I was planning on using this http://www.adafruit.com/product/904DC Current Sensor for reading the voltage. But I am at a loss on what to use for measuring the current.
I need the max I need to measure is 130 amps at 24V. Do I need a clamp for this? Sears makes this http://www.sears.com/craftsman-200a-ac-clampAC Clamp-on-adaptor/p-03482379000P Adaptor; could this be repurposed for my project, it? It says AC amps, what is the difference between AC amp clamps and DC amp clamps? II have a clamp on-on multimeter that does both AC and DC amps could I modify it to work? IfIf so how? CouldCould I create a circuit that allows the arduinoArduino to measure the amps?