led.value(1)
# ------------------------------------------------------------------------
# connect to network
# ------------------------------------------------------------------------
timeout = Timeout(10000)
net = network.WLAN(network.STA_IF)
net.active(True)
net.connect(wifi_config.wifi_ssid, wifi_config.wifi_pw)
while not net.isconnected():
led.value(not led.value())
utime.sleep_ms(100)
if timeout.hasExpired():
machine.reset()
print(net.ifconfig())
# ------------------------------------------------------------------------
# start webserver
# ------------------------------------------------------------------------
# create webserver
server = nbwebserver.WebServer()
rate = 1000
# handler for /led requests
class Request:
MODE_GOT_CONNECTION = 1
MODE_GOT_REQUEST = 2
MODE_GOT_HEADER = 3
MODE_DONE = 4
def __init__(self, sock, addr, handlers):
self._sock = sock
self._addr = addr
self._handlers = handlers
self._reqTimeout = Timeout(2000)
self._mode = Request.MODE_GOT_CONNECTION
self._buffer = b''
self.header = {}
self.method = None
self.reqPath = None
self.query = None
def _handleRequest(self):
handler = self._handlers.get(self.reqPath)
if handler is not None:
handler(self, Response(self._sock))
else:
Response(self._sock).sendResponse(404)
self._sock.close()
self._mode = Request.MODE_DONE
def _parseQuery(self, queryStr):
q = {}
pairs = queryStr.split('&')
for pair in pairs:
nk = pair.split('=')
if len(nk) == 2:
q[nk[0]] = nk[1]
return q
def _parseRequestLine(self, reqLine):
r = reqLine.split()
if len(r) != 3:
return Request.MODE_DONE
self.method = r[0]
reqParts = r[1].split('?')
self.reqPath = reqParts[0]
if len(reqParts) > 1:
self.query = self._parseQuery(reqParts[1])
return Request.MODE_GOT_REQUEST
def _parseLine(self, line):
print("line ", line)
if self._mode == Request.MODE_GOT_CONNECTION:
self._mode = self._parseRequestLine(line)
elif self._mode == Request.MODE_GOT_REQUEST:
if len(line) == 0:
self._mode = Request.MODE_GOT_HEADER
else:
h = line.split(":")
self.header[h[0]] = h[1].strip()
if self._mode == Request.MODE_GOT_HEADER:
self._handleRequest()
def Update(self):
if self._reqTimeout.hasExpired():
print("timeout")
self._mode = Request.MODE_DONE
else:
data, ok = _nb_recv(self._sock, 64)
if ok:
self._buffer += data
while True:
eol = self._buffer.find(b'\r\n')
if eol == -1:
break
self._parseLine(self._buffer[:eol].decode())
self._buffer = self._buffer[eol + 2:]
return self._mode