Let’s Know about INA219 Bi-Direction DC Current Power Supply Sensor Module GY-219 Module 

Many current-measuring devices can not measure high current. unless you want to involve the battery in it, the user has to put a measurement resistor between the target ground and true ground. these all things cause problems in circuits of electronics. it will not good when you change the ground references and move with varying current draw. ina219 current sensor Arduino is much smarter. this INA219 can handle high side current measuring up to +26V DC. i2c dc current sensor is the bi-direction DC power supply sensor module. i2c INA219 dc current sensor powered with 3V or 5V. it also reports back high side voltage. this high side voltage is great for tracking battery life or solar panels.

a good amplifier measures the voltage across 0.1 ohms, 1% sense resistor. its maximum input difference is +320mV. 320mv means +-3.2amps. it has internal 12 bits ADC. the resolution at 3.2A range is 0.8mA. its internal gain is set at the minimum. the max current is 400mA. the resolution of 400mA is 0.1mA. Hackers or Experts can replace the 0.1-ohm current sense resistor and change the range.ina219 alternative is multimeter.

INA219 current sensing module includes 6 pin header. and it also includes a 3.5mm terminal plug. this terminal plug can easily attach and detach your load. its usage is simple. INA219 sensor module itself power with 3 to 5V. Arduino dc INA current sensor is connected two i2C pins to the microcontroller.  connect your target power supply to VIN+ and load to the ground VIN-. just plug and go use it.

Specification INA219 DC Power Supply Module: