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Update README.rst and example

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Pierrick C 2020-03-29 18:04:38 +02:00
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README.rst
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@ -10,47 +10,13 @@ Introduction
:target: https://discord.gg/nBQh6qu :target: https://discord.gg/nBQh6qu
:alt: Discord :alt: Discord
.. image:: https://github.com/adafruit/Adafruit_CircuitPython_MAX31865/workflows/Build%20CI/badge.svg Micropython port of the CircuitPython module for the MAX31865 thermocouple amplifier.
:target: https://github.com/adafruit/Adafruit_CircuitPython_MAX31865/actions/
:alt: Build Status
CircuitPython module for the MAX31865 thermocouple amplifier.
Dependencies Dependencies
============= =============
This driver depends on: This driver depends on:
* `Adafruit CircuitPython <https://github.com/adafruit/circuitpython>`_ * `MicroPython <https://github.com/micropython/micropython>`_
* `Bus Device <https://github.com/adafruit/Adafruit_CircuitPython_BusDevice>`_
Please ensure all dependencies are available on the CircuitPython filesystem.
This is easily achieved by downloading
`the Adafruit library and driver bundle <https://circuitpython.org/libraries>`_.
Installing from PyPI
=====================
On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally `from
PyPI <https://pypi.org/project/adafruit-circuitpython-max31865/>`_. To install for current user:
.. code-block:: shell
pip3 install adafruit-circuitpython-max31865
To install system-wide (this may be required in some cases):
.. code-block:: shell
sudo pip3 install adafruit-circuitpython-max31865
To install in a virtual environment in your current project:
.. code-block:: shell
mkdir project-name && cd project-name
python3 -m venv .env
source .env/bin/activate
pip3 install adafruit-circuitpython-max31865
Usage Example Usage Example
============= =============

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examples/max31865_simpletest.py
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# Will print the temperature every second. # Will print the temperature every second.
import time import time
import board import machine
import busio
import digitalio
import adafruit_max31865 import adafruit_max31865
# Initialize SPI bus and sensor. # Initialize SPI bus and sensor.
spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO) spi=machine.SPI(
cs = digitalio.DigitalInOut(board.D5) # Chip select of the MAX31865 board. -1,
sck=machine.Pin(14, machine.Pin.OUT),
mosi=machine.Pin(13, machine.Pin.OUT),
miso=machine.Pin(12, machine.Pin.OUT)
)
spi.init(baudrate=115200, polarity=0, phase=1)
cs=machine.Pin(2)
sensor=adafruit_max31865.MAX31865(spi, cs) sensor=adafruit_max31865.MAX31865(spi, cs)
# Note you can optionally provide the thermocouple RTD nominal, the reference # Note you can optionally provide the thermocouple RTD nominal, the reference
# resistance, and the number of wires for the sensor (2 the default, 3, or 4) # resistance, and the number of wires for the sensor (2 the default, 3, or 4)