adafruit-circuitpython-dash-display 2.1.2

Introduction

CircuitPython library for creating Adafruit IO dashboards.

Dependencies

This driver depends on:

• Adafruit CircuitPython

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle or individual libraries can be installed using circup.

Usage Example

import time
import ssl
import board
from digitalio import DigitalInOut, Direction, Pull
import touchio
import socketpool
import wifi
import adafruit_minimqtt.adafruit_minimqtt as MQTT
from adafruit_io.adafruit_io import IO_MQTT
from adafruit_dash_display import Hub

up = DigitalInOut(board.BUTTON_UP)
up.direction = Direction.INPUT
up.pull = Pull.DOWN

select = DigitalInOut(board.BUTTON_SELECT)
select.direction = Direction.INPUT
select.pull = Pull.DOWN

down = DigitalInOut(board.BUTTON_DOWN)
down.direction = Direction.INPUT
down.pull = Pull.DOWN

back = touchio.TouchIn(board.CAP7)
submit = touchio.TouchIn(board.CAP8)

try:
    from secrets import secrets
except ImportError:
    print("WiFi secrets are kept in secrets.py, please add them there!")
    raise

display = board.DISPLAY

# Set your Adafruit IO Username and Key in secrets.py
# (visit io.adafruit.com if you need to create an account,
# or if you need your Adafruit IO key.)
aio_username = secrets["aio_username"]
aio_key = secrets["aio_key"]

print("Connecting to %s" % secrets["ssid"])
wifi.radio.connect(secrets["ssid"], secrets["password"])
print("Connected to %s!" % secrets["ssid"])

# Create a socket pool
pool = socketpool.SocketPool(wifi.radio)

# Initialize a new MQTT Client object
mqtt_client = MQTT.MQTT(
    broker="io.adafruit.com",
    username=secrets["aio_username"],
    password=secrets["aio_key"],
    socket_pool=pool,
    ssl_context=ssl.create_default_context(),
)

# Initialize an Adafruit IO MQTT Client
io = IO_MQTT(mqtt_client)


def pub_lamp(lamp):
    if type(lamp) == str:
        lamp = eval(lamp)  # pylint: disable=eval-used
    iot.publish("lamp", str(not lamp))
    # funhouse.set_text(f"Lamp: {not lamp}", 0)
    time.sleep(0.3)


iot = Hub(display=display, io=io, nav=(up, select, down, back, submit))

iot.add_device(
    feed_key="lamp",
    default_text="Lamp: ",
    formatted_text="Lamp: {}",
    pub_method=pub_lamp,
)
iot.add_device(
    feed_key="temperature",
    default_text="Temperature: ",
    formatted_text="Temperature: {:.1f} C",
)
iot.add_device(
    feed_key="humidity", default_text="Humidity: ", formatted_text="Humidity: {:.2f}%"
)

iot.get()

while True:
    iot.loop()
    time.sleep(0.01)

Documentation

API documentation for this library can be found on Read the Docs.

For information on building library documentation, please check out this guide.

Contributing

Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.