### Install MCP3xxx library via pip

Source: https://circuitpython.readthedocs.io/projects/mcp3xxx/en/latest

Commands to install the library on Linux systems for different environments.

```bash
pip3 install adafruit-circuitpython-mcp3xxx
```

```bash
sudo pip3 install adafruit-circuitpython-mcp3xxx
```

```bash
mkdir project-name && cd project-name
python3 -m venv .venv
source .venv/bin/activate
pip3 install adafruit-circuitpython-mcp3xxx
```

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

### MCP3008 Single-Ended Input

Source: https://circuitpython.readthedocs.io/projects/mcp3xxx/en/latest

Reads a single-ended analog value from pin 0 using the MCP3008 ADC.

```python
import busio
import digitalio
import board
import adafruit_mcp3xxx.mcp3008 as MCP
from adafruit_mcp3xxx.analog_in import AnalogIn

# create the spi bus
spi = busio.SPI(clock=board.SCK, MISO=board.MISO, MOSI=board.MOSI)

# create the cs (chip select)
cs = digitalio.DigitalInOut(board.D5)

# create the mcp object
mcp = MCP.MCP3008(spi, cs)

# create an analog input channel on pin 0
chan = AnalogIn(mcp, MCP.P0)

print('Raw ADC Value: ', chan.value)
print('ADC Voltage: ' + str(chan.voltage) + 'V')
```

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

### MCP3004 Single-Ended Input

Source: https://circuitpython.readthedocs.io/projects/mcp3xxx/en/latest

Reads a single-ended analog value from pin 0 using the MCP3004 ADC.

```python
import busio
import digitalio
import board
import adafruit_mcp3xxx.mcp3004 as MCP
from adafruit_mcp3xxx.analog_in import AnalogIn

# create the spi bus
spi = busio.SPI(clock=board.SCK, MISO=board.MISO, MOSI=board.MOSI)

# create the cs (chip select)
cs = digitalio.DigitalInOut(board.D5)

# create the mcp object
mcp = MCP.MCP3004(spi, cs)

# create an analog input channel on pin 0
chan = AnalogIn(mcp, MCP.P0)

print('Raw ADC Value: ', chan.value)
print('ADC Voltage: ' + str(chan.voltage) + 'V')
```

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

### MCP3008 Differential Input

Source: https://circuitpython.readthedocs.io/projects/mcp3xxx/en/latest

Reads a differential analog value between pin 0 and pin 1 using the MCP3008 ADC.

```python
import busio
import digitalio
import board
import adafruit_mcp3xxx.mcp3008 as MCP
from adafruit_mcp3xxx.analog_in import AnalogIn

# create the spi bus
spi = busio.SPI(clock=board.SCK, MISO=board.MISO, MOSI=board.MOSI)

# create the cs (chip select)
cs = digitalio.DigitalInOut(board.D5)

# create the mcp object
mcp = MCP.MCP3008(spi, cs)

# create a differential ADC channel between Pin 0 and Pin 1
chan = AnalogIn(mcp, MCP.P0, MCP.P1)

print('Differential ADC Value: ', chan.value)
print('Differential ADC Voltage: ' + str(chan.voltage) + 'V')
```

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

### MCP3004 Differential Input

Source: https://circuitpython.readthedocs.io/projects/mcp3xxx/en/latest

Reads a differential analog value between pin 0 and pin 1 using the MCP3004 ADC.

```python
import busio
import digitalio
import board
import adafruit_mcp3xxx.mcp3004 as MCP
from adafruit_mcp3xxx.analog_in import AnalogIn

# create the spi bus
spi = busio.SPI(clock=board.SCK, MISO=board.MISO, MOSI=board.MOSI)

# create the cs (chip select)
cs = digitalio.DigitalInOut(board.D5)

# create the mcp object
mcp = MCP.MCP3004(spi, cs)

# create a differential ADC channel between Pin 0 and Pin 1
chan = AnalogIn(mcp, MCP.P0, MCP.P1)

print('Differential ADC Value: ', chan.value)
print('Differential ADC Voltage: ' + str(chan.voltage) + 'V')
```

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