match cpython recv timeout behavior. new httpserver example

adafruit_wiznet5k/adafruit_wiznet5k.py

@@ -165,7 +165,7 @@
 _MAX_PACKET = const(4000)
 _LOCAL_PORT = const(0x400)
 # Default hardware MAC address
-_DEFAULT_MAC = (0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED)
+_DEFAULT_MAC = "DE:AD:BE:EF:FE:ED"
 
 # Maximum number of sockets to support, differs between chip versions.
 _MAX_SOCK_NUM = {"w5100s": const(0x04), "w5500": const(0x08), "w6100": const(0x08)}

adafruit_wiznet5k/adafruit_wiznet5k_socket.py

@@ -79,8 +79,8 @@ def setdefaulttimeout(_timeout: Optional[float]) -> None:
     :param Optional[float] _timeout: The default timeout in seconds or None.
     """
     global _default_socket_timeout  # pylint: disable=global-statement
-    if _timeout is None or (isinstance(timeout, (int, float)) and timeout >= 0):
-        _default_socket_timeout = timeout
+    if _timeout is None or (isinstance(_timeout, (int, float)) and _timeout >= 0):
+        _default_socket_timeout = _timeout
     else:
         raise ValueError("Timeout must be None, 0.0 or a positive numeric value.")
 

examples/wiznet5k_httpserver.py

@@ -0,0 +1,36 @@
+# SPDX-FileCopyrightText: 2023 Tim C for Adafruit Industries
+# SPDX-License-Identifier: MIT
+
+import board
+import digitalio
+from adafruit_httpserver import Server, Request, Response
+from adafruit_wiznet5k.adafruit_wiznet5k import WIZNET5K
+import adafruit_wiznet5k.adafruit_wiznet5k_socket as socket
+
+print("Wiznet5k HTTPServer Test")
+
+# For Adafruit Ethernet FeatherWing
+cs = digitalio.DigitalInOut(board.D10)
+# For Particle Ethernet FeatherWing
+# cs = digitalio.DigitalInOut(board.D5)
+spi_bus = board.SPI()
+
+# Initialize ethernet interface with DHCP
+eth = WIZNET5K(spi_bus, cs)
+
+# set the interface on the socket source
+socket.set_interface(eth)
+
+# initialize the server
+server = Server(socket, "/static", debug=True)
+
+
+@server.route("/")
+def base(request: Request):
+    """
+    Serve a default static plain text message.
+    """
+    return Response(request, "Hello from the CircuitPython HTTP Server!")
+
+
+server.serve_forever(str(eth.pretty_ip(eth.ip_address)))