Output voltage proportional to AC or DC currents
Factory-trimmed for accuracy
Extremely stable output offset voltage
Ratiometric output from supply voltage
Low-noise analog signal path
Device bandwidth is set via the new FILTER pin
Small footprint, low-profile SOIC8 package
HARDWARE REQUIRED
- Arduino Uno with USB cable - 1
- Current Sensor ACS712 30A- 1
- Jumper wires (Male to Female AND male to male) - 40 pieces each
SOFTWARE REQUIRED
Arduino IDE ( programmable software for Arduino boards )
You can download the software from this link : https://www.arduino.cc/en/Main/Software
PIN DESCRIPTION (current sensor )
CIRCUIT DESCRIPTION
CODE
CLICK TO SEE THE CODE:
OUTPUT
Just follow the given steps and measure the current value.
FREQUENTLY ASKED QUESTION
Q. What voltage i need to supply to module to power it on?
A. Give regulated +5V to module at its VCC connector.
Q. What is output voltage without any load?
A. It is VCC/2 so it means around 2.5V
Q. What happens to output voltage if i connect a DC load current?
A. When DC load takes current the output voltage will deviate from 2.5V to either 0V or 5V depending on polarity of sensing load.
Q. Does DC load and AC load has same type of output?
A. No. With DC load you can check simply with multimeter, But in case of AC load its totally different. Your multimeter will show same 2.5V output whatever load you put on AC because what happens here is when positive AC phase is going on the output voltage increased from 2.5V and during negative phase the output voltage decreases from 2.5V so your multimeter will average that and show you same voltage.