GY-471 Current Sensor Module MAX471 Series 3A

Description

What it is

The GY-471 is a current sensor module based on the MAX471 chip, designed to measure direct current (DC) currents up to 3A.

Features

• MAX471 Series 3A Current Sensor
• Measures currents up to 3A (DC)
• SKU: ARD0010863
• Price: 2.69 €

What it is for

The GY-471 module is useful for monitoring and protecting electronic circuits. It can be used to build a DC motor current monitor, displaying the consumed current value on an LCD display. It is ideal for energy monitoring and circuit protection projects. Compatibility with Arduino and ESP should be verified in the datasheet.

Tutorial: How to use GY-471

The GY-471 sensor helps you measure direct current (DC) currents up to 3A. Useful for energy monitoring and circuit protection projects.

What you need

• GY-471
• Arduino or compatible microcontroller
• Test lead
• Multimeter

Steps

1. 1. Connect the GY-471 to an I2C pin of your microcontroller (A4 and A5 for Arduino).
2. 2. Connect the VCC of the GY-471 to 3.3V or 5V of the microcontroller, check the datasheet.
3. 3. Connect the GND of the GY-471 to GND of the microcontroller.
4. 4. Connect the VOUT of the GY-471 to an ADC pin of the microcontroller, check the datasheet.
5. 5. Insert the example code into Sketch.
6. 6. Upload the Sketch to the microcontroller.
7. 7. Check the current reading with a multimeter.
8. 8. Verify the accuracy of the readings.

Example code

```
#include <Wire.h>

void setup() {
  Wire.begin();
}

void loop() {
  int value = analogRead(A0);
  Serial.println(value);
  delay(1000);
}
```

Mini project

Build a current monitor for a DC motor. Connect the GY-471 to the motor and display the current used on an LCD display.

Common mistakes

• Connect VCC to 5V instead of 3.3V.
• Forget to configure I2C.
• Do not verify the accuracy of the readings.
• Connect VOUT to a digital pin instead of ADC.

Recommended accessories

• LCD display
• DC motor
• Test lead
• Multimeter

Frequently asked questions

Does the GY-471 measure AC current?
No, it measures only DC current.

How much current can the GY-471 measure?
Up to 3A.

Which I2C pins can the GY-471 use?
It can use A4 and A5 for Arduino.