Add Cellular Examples

examples/requests_advanced_cellular.py

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+import time
+import board
+import busio
+import digitalio
+from adafruit_fona.adafruit_fona import FONA
+from adafruit_fona.adafruit_fona_gsm import GSM
+import adafruit_fona.adafruit_fona_socket as cellular_socket
+import adafruit_requests as requests
+
+# Get GPRS details and more from a secrets.py file
+try:
+    from secrets import secrets
+except ImportError:
+    print("GPRS secrets are kept in secrets.py, please add them there!")
+    raise
+
+# Create a serial connection for the FONA connection using 4800 baud.
+# These are the defaults you should use for the FONA Shield.
+# For other boards set RX = GPS module TX, and TX = GPS module RX pins.
+uart = busio.UART(board.TX, board.RX, baudrate=4800)
+rst = digitalio.DigitalInOut(board.D4)
+
+# Initialize FONA module (this may take a few seconds)
+fona = FONA(uart, rst)
+
+# initialize gsm
+gsm = GSM(fona, (secrets["apn"], secrets["apn_username"], secrets["apn_password"]))
+
+while not gsm.is_attached:
+    print("Attaching to network...")
+    time.sleep(0.5)
+
+while not gsm.is_connected:
+    print("Connecting to network...")
+    gsm.connect()
+    time.sleep(5)
+
+# Initialize a requests object with a socket and cellular interface
+requests.set_socket(cellular_socket, fona)
+
+JSON_GET_URL = "http://httpbin.org/get"
+
+# Define a custom header as a dict.
+headers = {"user-agent": "blinka/1.0.0"}
+
+print("Fetching JSON data from %s..." % JSON_GET_URL)
+response = requests.get(JSON_GET_URL, headers=headers)
+print("-" * 60)
+
+json_data = response.json()
+headers = json_data["headers"]
+print("Response's Custom User-Agent Header: {0}".format(headers["User-Agent"]))
+print("-" * 60)
+
+# Read Response's HTTP status code
+print("Response HTTP Status Code: ", response.status_code)
+print("-" * 60)
+
+# Read Response, as raw bytes instead of pretty text
+print("Raw Response: ", response.content)
+
+# Close, delete and collect the response data
+response.close()

examples/requests_simpletest_cellular.py

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+import time
+import board
+import busio
+import digitalio
+from adafruit_fona.adafruit_fona import FONA
+from adafruit_fona.adafruit_fona_gsm import GSM
+import adafruit_fona.adafruit_fona_socket as cellular_socket
+import adafruit_requests as requests
+
+# Get GPRS details and more from a secrets.py file
+try:
+    from secrets import secrets
+except ImportError:
+    print("GPRS secrets are kept in secrets.py, please add them there!")
+    raise
+
+# Create a serial connection for the FONA connection using 4800 baud.
+# These are the defaults you should use for the FONA Shield.
+# For other boards set RX = GPS module TX, and TX = GPS module RX pins.
+uart = busio.UART(board.TX, board.RX, baudrate=4800)
+rst = digitalio.DigitalInOut(board.D4)
+
+# Initialize FONA module (this may take a few seconds)
+fona = FONA(uart, rst)
+
+# initialize gsm
+gsm = GSM(fona, (secrets["apn"], secrets["apn_username"], secrets["apn_password"]))
+
+while not gsm.is_attached:
+    print("Attaching to network...")
+    time.sleep(0.5)
+
+while not gsm.is_connected:
+    print("Connecting to network...")
+    gsm.connect()
+    time.sleep(5)
+
+# Initialize a requests object with a socket and cellular interface
+requests.set_socket(cellular_socket, fona)
+
+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()
+
+data = "31F"
+print("POSTing data to {0}: {1}".format(JSON_POST_URL, data))
+response = requests.post(JSON_POST_URL, data=data)
+print("-" * 40)
+
+json_resp = response.json()
+# Parse out the 'data' key from json_resp dict.
+print("Data received from server:", json_resp["data"])
+print("-" * 40)
+response.close()
+
+json_data = {"Date": "July 25, 2019"}
+print("POSTing data to {0}: {1}".format(JSON_POST_URL, json_data))
+response = requests.post(JSON_POST_URL, json=json_data)
+print("-" * 40)
+
+json_resp = response.json()
+# Parse out the 'json' key from json_resp dict.
+print("JSON Data received from server:", json_resp["json"])
+print("-" * 40)
+response.close()