Adafruit Industries Airlift Bitsy Add-On, Manual, Page: 20 / 55

Requests
We've written a requests-like (https://adafru.it/Kpa) library for web interfacing named A
dafruit_CircuitPython_Requests (https://adafru.it/FpW) . This library allows you to send
HTTP/1.1 requests without "crafting" them and provides helpful methods for parsing
the response from the server.
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT
# adafruit_requests usage with an esp32spi_socket
import board
import busio
from digitalio import DigitalInOut
import adafruit_esp32spi.adafruit_esp32spi_socket as socket
from adafruit_esp32spi import adafruit_esp32spi
import adafruit_requests as requests
# Add a secrets.py to your filesystem that has a dictionary called secrets with
"ssid" and
# "password" keys with your WiFi credentials. DO NOT share that file or commit it
into Git or other
# source control.
# pylint: disable=no-name-in-module,wrong-import-order
try :
from secrets import secrets
except ImportError :
print ( "WiFi secrets are kept in secrets.py, please add them there!" )
raise
# If you are using a board with pre-defined ESP32 Pins:
esp32_cs = DigitalInOut(board.ESP_CS)
esp32_ready = DigitalInOut(board.ESP_BUSY)
esp32_reset = DigitalInOut(board.ESP_RESET)
# If you have an externally connected ESP32:
# esp32_cs = DigitalInOut(board.D9)
# esp32_ready = DigitalInOut(board.D10)
# esp32_reset = DigitalInOut(board.D5)
# If you have an AirLift Featherwing or ItsyBitsy Airlift:
# esp32_cs = DigitalInOut(board.D13)
# esp32_ready = DigitalInOut(board.D11)
# esp32_reset = DigitalInOut(board.D12)
spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)
print ( "Connecting to AP..." )
while not esp.is_connected:
try :
esp.connect_AP(secrets[ "ssid" ], secrets[ "password" ])
except RuntimeError as e:
print ( "could not connect to AP, retrying: " , e)
continue
print ( "Connected to" , str (esp.ssid, "utf-8" ), "\tRSSI:" , esp.rssi)
# Initialize a requests object with a socket and esp32spi interface
socket.set_interface(esp)
requests.set_socket(socket, esp)
TEXT_URL = "http://wifitest.adafruit.com/testwifi/index.html"
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