### Install adafruit-circuitpython-ina3221 using pip

Source: https://adafruit-circuitpython-ina3221.readthedocs.io/en/latest

Install the driver locally from PyPI using pip3. This command installs for the current user.

```bash
pip3 install adafruit-circuitpython-ina3221

```

--------------------------------

### Install adafruit-circuitpython-ina3221 in a virtual environment

Source: https://adafruit-circuitpython-ina3221.readthedocs.io/en/latest

Install the driver in a virtual environment for a specific project. This involves creating a virtual environment, activating it, and then installing the library.

```bash
mkdir project-name && cd project-name
python3 -m venv .venv
source .env/bin/activate
pip3 install adafruit-circuitpython-ina3221

```

--------------------------------

### Install adafruit-circuitpython-ina3221 system-wide using pip

Source: https://adafruit-circuitpython-ina3221.readthedocs.io/en/latest

Install the driver system-wide using pip3. This may be required in some cases.

```bash
sudo pip3 install adafruit-circuitpython-ina3221

```

--------------------------------

### Install circup

Source: https://adafruit-circuitpython-ina3221.readthedocs.io/en/latest

Install the circup tool, which is used to manage libraries on CircuitPython devices. This command installs circup in the current Python environment.

```bash
pip3 install circup

```

--------------------------------

### Install adafruit-circuitpython-ina3221 using circup

Source: https://adafruit-circuitpython-ina3221.readthedocs.io/en/latest

Install the driver onto a connected CircuitPython device using the circup tool. Ensure your device is connected and recognized.

```bash
circup install adafruit_ina3221

```

--------------------------------

### Read voltage and current from INA3221 sensor

Source: https://adafruit-circuitpython-ina3221.readthedocs.io/en/latest

This example demonstrates how to read bus voltage, shunt voltage, and current from the INA3221 sensor. It iterates through the three available channels and prints the readings every two seconds.

```python
import time
import board
from adafruit_ina3221 import INA3221

i2c = board.I2C()
ina = INA3221(i2c)

while True:
    for i in range(3):
        bus_voltage = ina[i].bus_voltage
        shunt_voltage = ina[i].shunt_voltage
        current = ina[i].current_amps * 1000
        print(f"Channel {i + 1}:")
        print(f"  Bus Voltage: {bus_voltage:.6f} V")
        print(f"  Shunt Voltage: {shunt_voltage:.6f} V")
        print(f"  Current: {current:.6f} mA")
        print("-" * 30)
    time.sleep(2)

```

--------------------------------

### Update adafruit-circuitpython-ina3221 using circup

Source: https://adafruit-circuitpython-ina3221.readthedocs.io/en/latest

Update an existing installation of the driver on a connected CircuitPython device using the circup tool.

```bash
circup update

```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.