HackSpace_-_October_2019

SCHOOL OF MAKING

calibration=((7000,59000),(8700,55000)),

size=(320,240))

The WiFi object is an adafruit_esp32_wifimanager

object that’s created with the following:

esp32_cs = DigitalInOut(board.ESP_CS)

esp32_ready = DigitalInOut(board.ESP_BUSY)

esp32_reset = DigitalInOut(board.ESP_RESET)

spi = busio.SPI(board.SCK, board.MOSI, board.

MISO)

esp = adafruit_esp32spi.ESP_SPIcontrol(spi,

esp32_cs, esp32_ready, esp32_reset)

status_light = neopixel.NeoPixel(board.NEOPIXEL,

1, brightness=0.2)

wifi = adafruit_esp32spi_wifimanager.ESPSPI_

WiFiManager(esp, secrets, status_light)

Finally, secrets is a dictionary containing things

that you don’t want to share publicly. In this case,

it needs to include your WiFi SSID, WiFi password,

and IFTTT key (more on this later). You’ll need a file

on your CircuitPython device called secrets.py that

contains the data structure in the following form:

secrets = {

‘ssid’ : ‘XXX’,

‘password’ : ‘XXX’,

‘ifttt_key’ : ‘XXX’

}

You can bring this into your main code.py program

with the following code:

try:

from secrets import secrets

except ImportError:

print(“WiFi secrets are kept in secrets.py,

please add them there!”)

raise

You can see how this all comes together as

this is the example on the IFTTT library here:

hsmag.cc/XzdCAs.

You’ll also need to include the MPY file for the

IFTTT module. You can download this from

hsmag.cc/lFqTxx. Make sure you get the version

that matches the version of CircuitPython you have.

Unzip the file and copy the MPY file to the libs

directory on your board.

Send data with If This Then That

You can have as many different event types

as you like associated with your account, each

triggering a different applet

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