INA219 I2C Bi-directional DC Current Sensor Module

The INA219 I2C Bi-directional DC Current Sensor Module is a powerful and precise solution for monitoring current, voltage, and power in electronic circuits. Built around the INA219 chip, this sensor uses I2C communication to deliver accurate measurements with minimal microcontroller resources. It is especially useful in IoT systems, robotics, solar power monitoring, and battery management applications.

Compared to traditional current sensing methods, the INA219 provides an all-in-one solution by measuring both voltage and current, and calculating power consumption directly. This makes it an ideal choice for projects where energy efficiency and accurate monitoring are important.

Key Features

• Bi-directional Current Measurement – Detects current flow in both directions.

• High Accuracy – Measures current, voltage, and power with precision.

• I2C Communication – Easy integration with Arduino, Raspberry Pi, and microcontrollers.

• Compact Design – Small form factor suitable for embedded systems.

• Wide Voltage Range – Measures up to 26V DC input.

• Efficient Power Monitoring – Ideal for battery-powered and IoT devices.

• Low Power Consumption – Optimized for long-term monitoring projects.

Technical Specifications

• Operating Voltage: 3.0V to 5.5V DC

• Interface: I2C (up to 3.4MHz fast mode)

• Current Measurement Range: ±3.2A

• Voltage Measurement Range: 0–26V DC

• Power Measurement: Calculated using voltage and current values

• Shunt Resistor: 0.1Ω (onboard)

• Resolution: 12-bit ADC

• Dimensions: Compact breakout module design

• Supported Platforms: Arduino IDE, Raspberry Pi, ESP32, STM32

Applications

1. Battery Monitoring Systems
   Used for monitoring charge/discharge cycles in lithium-ion and lead-acid batteries.

2. IoT Devices
   Provides real-time current and voltage monitoring for IoT projects.

3. Solar Power and Energy Systems
   Helps measure solar panel output, load consumption, and efficiency.

4. Robotics
   Monitors motor power usage, ensuring efficient energy distribution.

5. Industrial Projects
   Useful in automation and power management systems requiring accurate current measurements.

Working Principle

The INA219 sensor works by measuring the voltage drop across a shunt resistor to calculate the current. It then uses the I2C interface to transmit voltage, current, and power data to the microcontroller.

• Step 1: The current flows through the shunt resistor (0.1Ω).

• Step 2: The INA219 detects the voltage drop across the resistor.

• Step 3: Using Ohm’s law, the sensor calculates current.

• Step 4: The module also measures the bus voltage directly.

• Step 5: By combining current and voltage readings, it computes power consumption.

This efficient working principle makes the INA219 module suitable for both low-power and high-power monitoring applications.

Why Choose INA219 I2C Current Sensor?

• Provides all-in-one monitoring of voltage, current, and power.

• Uses I2C communication, saving microcontroller pins.

• High precision ensures reliable data for sensitive projects.

• Compact and lightweight, perfect for embedded applications.

• Affordable and versatile, suitable for beginners and professionals.

Why Buy from Electroxbd?

At Electroxbd, we ensure our customers receive only authentic and reliable components for their projects. The INA219 current sensor module we provide is tested and guaranteed for performance.

• 100% genuine INA219 modules

• Affordable prices with delivery across Bangladesh

• Technical support for students and professionals

• Trusted by hobbyists, makers, and IoT developers

• Office Address:
  H#1/1, Opposite RH Chhatrabash, Madrasa More, Debisingpara, Boalia, Rajshahi

• Electroxbd – Trusted Source for Reliable Electronic Parts

Conclusion

The INA219 I2C Bi-directional DC Current Sensor Module is one of the most reliable tools for power monitoring and current measurement in electronics. Its ability to measure current in both directions, combined with voltage monitoring and power calculation, makes it a complete solution for IoT, robotics, and renewable energy systems.

Whether you are a student learning about electronics, a hobbyist experimenting with IoT devices, or a professional working on industrial projects, the INA219 is the perfect choice for accurate and efficient current sensing.

By purchasing from Electroxbd, you ensure quality, affordability, and nationwide support—helping you bring your innovative projects to life with confidence.

Common Questions:
Q: What is the price of INA219 I2C Bi-directional DC Current Sensor in Bangladesh?
A: The latest price of INA219 I2C Bi-directional DC Current Sensor in Bangladesh is 220BDT.
Q: Where to buy INA219 I2C Bi-directional DC Current Sensor in Bangladesh?
A: You can buy the INA219 I2C Bi-directional DC Current Sensor at the best price from ElectroXBD in Bangladesh.