Simple test

Ensure your device works with this simple test.

examples/fona_simpletest.py

# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT

import time
from os import getenv

import adafruit_connection_manager
import adafruit_requests
import board
import busio
import digitalio

import adafruit_fona.adafruit_fona_network as network
import adafruit_fona.adafruit_fona_socket as pool
from adafruit_fona.adafruit_fona import FONA
from adafruit_fona.fona_3g import FONA3G

print("FONA Webclient Test")

TEXT_URL = "http://wifitest.adafruit.com/testwifi/index.html"
JSON_URL = "http://api.coindesk.com/v1/bpi/currentprice/USD.json"

# Get FONA details, ensure these are setup in settings.toml
apn = getenv("apn")
apn_username = getenv("apn_username")
apn_password = getenv("apn_password")

# Create a serial connection for the FONA connection
uart = busio.UART(board.TX, board.RX)
rst = digitalio.DigitalInOut(board.D4)

# Use this for FONA800 and FONA808
fona = FONA(uart, rst)

# Use this for FONA3G
# fona = FONA3G(uart, rst)

# Initialize cellular data network
network = network.CELLULAR(fona, (apn, apn_username, apn_password))

while not network.is_attached:
    print("Attaching to network...")
    time.sleep(0.5)
print("Attached!")

while not network.is_connected:
    print("Connecting to network...")
    network.connect()
    time.sleep(0.5)
print("Network Connected!")

print("My IP address is:", fona.local_ip)
print(f"IP lookup adafruit.com: {fona.get_host_by_name('adafruit.com')}")

# create requests session
ssl_context = adafruit_connection_manager.create_fake_ssl_context(pool, fona)
requests = adafruit_requests.Session(pool, ssl_context)

# fona._debug = True
print("Fetching text from", TEXT_URL)
r = requests.get(TEXT_URL)
print("-" * 40)
print(r.text)
print("-" * 40)
r.close()

print()
print("Fetching json from", JSON_URL)
r = requests.get(JSON_URL)
print("-" * 40)
print(r.json())
print("-" * 40)
r.close()

print("Done!")