User Manual

ManualsBrandsAdafruit ManualsAdafruitAirLift FeatherWing with ESP32 WiFi Co-Processor

We've written a requests-like (https://adafru.it/FpT) library for web interfacing

named Adafruit_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.

Here's an example of using Requests to perform GET and POST requests to a server.

# 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

# 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)

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(b'MY_SSID_NAME', b'MY_SSID_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

requests.set_socket(socket, esp)

TEXT_URL = "http://wifitest.adafruit.com/testwifi/index.html"

JSON_GET_URL = "http://httpbin.org/get"

JSON_POST_URL = "http://httpbin.org/post"

print("Fetching text from %s"%TEXT_URL)

response = requests.get(TEXT_URL)

print('-'*40)

print("Text Response: ", response.text)

print('-'*40)

response.close()

print("Fetching JSON data from %s"%JSON_GET_URL)

response = requests.get(JSON_GET_URL)

print('-'*40)

print("JSON Response: ", response.json())

print('-'*40)

response.close()

https://learn.adafruit.com/adafruit-airlift-featherwing-esp32-wifi-co-

processor-featherwing

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