SCT013-020 Split-Core Current Transformer Sensor

Description

What it is

The SCT013-020 is a split core sensor for measuring alternating current. It allows the detection of the value of electrical current in a circuit without interrupting the flow.

Features

• Input: 0-20A
• Output: 0-1V
• SKU: ARD0011197
• Price: 8.24 €
• Category: Pre-order

What it is for

The SCT013-020 is useful for protection and control systems in industrial environments. It can be used to monitor the energy consumption of devices and systems. It is ideal for beginners and intermediates for building current monitoring projects with Arduino or other microcontrollers.

Tutorial: How to use SCT013-020

The SCT013-020 sensor is ideal for measuring high currents in energy monitoring applications. Useful for beginners and intermediates.

What you need

• SCT013-020
• Arduino or compatible microcontroller
• 1 kΩ resistor
• 5V power cable

Steps

1. 1. Check the datasheet for sensor specifications.
2. 2. Connect the sensor to the microcontroller with the following pins: VCC to 5V, GND to GND, OUT to pin A0.
3. 3. Connect a resistor between VCC and OUT to protect the microcontroller.
4. 4. Upload the following code to Arduino.
5. 5. Connect the sensor to a 2A current to test.
6. 6. Read the value on pin A0 to verify proper functioning.
7. 7. Repeat the test with different currents to calibrate the sensor.
8. 8. Connect the sensor to an energy monitoring system.

Example code

int sensore = A0;
void setup() {
  Serial.begin(9600);
}
void loop() {
  int val = analogRead(sensore);
  Serial.println(val);
  delay(1000);
}

Mini project

Build a current monitor for a small motor using the SCT013-020 and an Arduino.

Common mistakes

• Connect the sensor directly to the microcontroller without a resistor.
• Use a digital pin instead of an analog pin to read the output.
• Ignore the maximum current specification of the sensor.
• Do not calibrate the sensor before use.

Recommended accessories

• Arduino Nano
• 10 kΩ resistor
• DC Motors
• 12V power cable

Frequently asked questions

Can I use this sensor with a 3.3V microcontroller?
Yes, but check the power supply voltage specification on the datasheet.

How long does the battery last when using this sensor?
The power consumption is low, but check the specifications on the datasheet.

Can I use this sensor with a Raspberry Pi?
No, the Raspberry Pi does not support direct analog signals. Use an ADC converter.

Does the sensor work well with 20A currents?
Yes, but make sure to use the correct pin and a protection resistor.