### Install circup

Source: https://github.com/adafruit/adafruit_circuitpython_ina3221/blob/main/docs/index.md

Install the circup utility, which helps manage CircuitPython libraries.

```shell
pip3 install circup
```

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

### Install INA3221 Driver with pip

Source: https://github.com/adafruit/adafruit_circuitpython_ina3221/blob/main/README.rst

Install the driver using pip for local or system-wide installation on supported GNU/Linux systems.

```shell
pip3 install adafruit-circuitpython-ina3221
```

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

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

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

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

Source: https://github.com/adafruit/adafruit_circuitpython_ina3221/blob/main/docs/index.md

Install the driver within a virtual environment for a specific project.

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

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

### Install adafruit-circuitpython-ina3221 with pip3

Source: https://github.com/adafruit/adafruit_circuitpython_ina3221/blob/main/docs/index.md

Install the driver locally for the current user using pip3.

```shell
pip3 install adafruit-circuitpython-ina3221
```

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

### Install adafruit-circuitpython-ina3221 system-wide with pip3

Source: https://github.com/adafruit/adafruit_circuitpython_ina3221/blob/main/docs/index.md

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

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

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

### INA3221 Usage Example

Source: https://github.com/adafruit/adafruit_circuitpython_ina3221/blob/main/README.rst

Example code demonstrating how to initialize the INA3221 sensor and read bus voltage, shunt voltage, and current for up to three channels in a loop.

```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)
```

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

### Install INA3221 Driver with Circup

Source: https://github.com/adafruit/adafruit_circuitpython_ina3221/blob/main/README.rst

Install or update the INA3221 driver on a connected CircuitPython device using the circup tool.

```shell
pip3 install circup
```

```shell
circup install adafruit_ina3221
```

```shell
circup update
```

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

### Update adafruit_ina3221 with circup

Source: https://github.com/adafruit/adafruit_circuitpython_ina3221/blob/main/docs/index.md

Update an existing installation of the INA3221 driver on a CircuitPython device using circup.

```shell
circup update
```

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

### Simple INA3221 Test

Source: https://github.com/adafruit/adafruit_circuitpython_ina3221/blob/main/docs/examples.md

This snippet shows how to initialize the INA3221 sensor and continuously read voltage, shunt voltage, and current for up to three channels. Ensure the I2C bus is correctly configured and the sensor is connected.

```python
# SPDX-FileCopyrightText: Copyright (c) 2024 Liz Clark for Adafruit Industries
#
# SPDX-License-Identifier: MIT
import time

import board

from adafruit_ina3221 import INA3221

i2c = board.I2C()
ina = INA3221(i2c, enable=[0, 1, 2])

while True:
    for i in range(3):
        bus_voltage = ina[i].bus_voltage
        shunt_voltage = ina[i].shunt_voltage
        current = ina[i].current

        print(f"Channel {i + 1}:")
        print(f"  Bus Voltage: {bus_voltage:.6f} V")
        print(f"  Shunt Voltage: {shunt_voltage:.6f} mV")
        print(f"  Current: {current:.6f} mA")
        print("-" * 30)

    time.sleep(2)
```

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