Features:The old version of INA219 has the same function as the new version, only the package of the main chip is different MCU-219 INA219 I2C interface Zero drift bidirectional current/power monitoring sensor module.1. The MCU-219 module is a zero-drift, bidirectional current/power monitoring integrated circuit (IC) with an I2C interface, further expanding TI's energy-efficient electronics portfolio. The INA219 has the industry's best degree and small size to not only monitor the voltage drop on the shunt resistor, sense the shunt supply voltage, but also calculate the power supply. Packaged in SOT23, the device provides a small, low-cost solution for servers, laptops, power, battery management, and digital electroflumetry for automotive and telecommunications equipment.2. The INA219 achieves an error accuracy of 1% over a temperature range of -40C to +85C, with an offset of 100 uV. The high precision combined with the 12-bit resolution helps customers minimize the voltage drop on the shunt resistor, thereby minimizing power loss and consumption and saving board level space. The device can sense the bus voltage range from 0 V to +26 V.3. The programmable calibration register can directly read the current in amperes and the power supply in watts. 4. Up to 128 samples can be averaged for filtering in noisy environments. 5. The I2C interface has a timeout setting that not only avoids bus lockout, but also provides a high-speed mode that meets communication requirements up to 3.4 MHz. 6. All features of the INA219 are software programmable. 7. It is powered by a single power supply and its operating voltage is between +3.0 and +5.5V.Package included:5pcs MCU-219 INA219 I2C Interface Zero Drift Bidirectional Current or Power Monitoring Sensor Module, CJMCU-219 INA219 I2C Interface Bidirectional DC Current/Power Monitoring Sensor Module, for Raspberry Pi Arduino