CircuitPython library for the MCP3xxx Analog-to-Digital converters.
Project description
Introduction
CircuitPython library for the MCP3xxx series of analog-to-digital converters.
Currently supports:
Dependencies
This driver depends on:
Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.
Installing from PyPI
On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI. To install for current user:
pip3 install adafruit-circuitpython-mcp3xxxTo install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-mcp3xxxTo install in a virtual environment in your current project:
mkdir project-name && cd project-name
python3 -m venv .env
source .env/bin/activate
pip3 install adafruit-circuitpython-mcp3xxxUsage Example
MCP3008 Single Ended
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')MCP3008 Differential
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 Single-Ended
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')MCP3004 Differential
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')Contributing
Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.
Documentation
For information on building library documentation, please check out this guide.
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
File details
Details for the file adafruit-circuitpython-mcp3xxx-1.4.0.tar.gz.
File metadata
- Download URL: adafruit-circuitpython-mcp3xxx-1.4.0.tar.gz
- Upload date:
- Size: 22.8 kB
- Tags: Source
- Uploaded using Trusted Publishing? No
- Uploaded via: twine/3.1.1 pkginfo/1.5.0.1 requests/2.23.0 setuptools/41.2.0 requests-toolbelt/0.9.1 tqdm/4.43.0 CPython/3.8.2
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 | b57ba9b4378831bb6cb1a322d418e4dcc1220edb06a94ac8211ed0c9939171db |
|
| MD5 | 2f5223442ef836f79843356218bce8e9 |
|
| BLAKE2b-256 | 066fdf2b2b40893a141b03b704c6029afa53612c5cb7612f7dddd3af19bc9dd7 |
