Page 13 of 16
Page 257
import network
from machine import Pin, Timer
from time import sleep_ms
def setup(country, ssid, key):
network.country(country)
wifi = network.WLAN(network.STA_IF)
wifi.active(True)
wifi.disconnect()
LED = Pin(2, Pin.OUT)
LED.on()
timeout = 20000
wifi.connect(ssid,key)
timer = Timer(1)
timer.init(period=200, mode=Timer.PERIODIC,callback=lambda t:LED.value(not LED.value()))
s = network.STAT_IDLE
while timeout>0:
print("connecting",s)
s = wifi.status()
if s != network.STAT_CONNECTING:
break
sleep_ms(100)
timeout = timeout-100
if(s==network.STAT_GOT_IP):
timer.init(period=1000, mode=Timer.PERIODIC, callback=lambda t:LED.value(not LED.value()))
else:
timer.deinit()
LED.on()
return wifi
Page 261
from http.server import HTTPServer, BaseHTTPRequestHandler
from io import BytesIO
class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):
def sendResponse(self, cmd):
content_length = int(self.headers['Content-Length'])
body = self.rfile.read(content_length)
self.send_response(200)
self.end_headers()
response = BytesIO()
response.write(b'This is a '+bytes(cmd, 'utf-8')+ b' request. ')
response.write(b'Received: ')
response.write(body)
self.wfile.write(response.getvalue())
def do_GET(self):
self.send_response(200)
self.end_headers()
self.wfile.write(b'Hello, world!')
def do_HEAD(self):
self.send_response(200)
self.end_headers()
def do_POST(self):
self.sendResponse("POST")
def do_PUT(self):
self.sendResponse("PUT")
def do_DELETE(self):
self.sendResponse("DELETE")
def do_PATCH(self):
self.sendResponse("PATCH")
httpd = HTTPServer(('', 8080), SimpleHTTPRequestHandler)
httpd.serve_forever()
Page 264
import network
from machine import Pin, Timer
from time import sleep_ms
import urequests
def setup(country, ssid, key):
network.country(country)
wifi = network.WLAN(network.STA_IF)
wifi.active(True)
wifi.disconnect()
LED = Pin(2, Pin.OUT)
LED.on()
timeout = 20000
wifi.connect(ssid,key)
timer = Timer(1)
timer.init(period=200, mode=Timer.PERIODIC,callback=lambda t:LED.value(not LED.value()))
s = network.STAT_IDLE
while timeout>0:
print("connecting",s)
s = wifi.status()
if s != network.STAT_CONNECTING:
break
sleep_ms(100)
timeout = timeout-100
if(s==network.STAT_GOT_IP):
timer.init(period=1000, mode=Timer.PERIODIC, callback=lambda t:LED.value(not LED.value()))
else:
timer.deinit()
LED.on()
return wifi
wifi=setup(country, ssid, key)
print("Connected")
r = urequests.get("https://www.example.com")
print(r.content)
r.close()
Page 265
import network
from machine import Pin, Timer
from time import sleep_ms
import urequests
def setup(country, ssid, key):
network.country(country)
wifi = network.WLAN(network.STA_IF)
wifi.active(True)
wifi.disconnect()
LED = Pin(2, Pin.OUT)
LED.on()
timeout = 20000
wifi.connect(ssid,key)
timer = Timer(1)
timer.init(period=200, mode=Timer.PERIODIC,callback=lambda t:LED.value(not LED.value()))
s = network.STAT_IDLE
while timeout>0:
print("connecting",s)
s = wifi.status()
if s != network.STAT_CONNECTING:
break
sleep_ms(100)
timeout = timeout-100
if(s==network.STAT_GOT_IP):
timer.init(period=1000, mode=Timer.PERIODIC, callback=lambda t:LED.value(not LED.value()))
else:
timer.deinit()
LED.on()
return wifi
wifi=setup(country, ssid, key)
print("Connected")
url="http://192.168.253.72:8080"
r = urequests.get(url)
print(r.content)
r.close()
buf= b'Hello World'
r=urequests.post(url,data=buf)
print(r.content)
r.close()
r=urequests.put(url,data=buf)
print(r.content)
r.close()
r=urequests.patch(url,data=buf)
print(r.content)
r.close()
r=urequests.head(url)
print(r.content)
print(r.headers)
r.close()
r=urequests.delete(url,data=buf)
print(r.content)
r.close()
Page 266
import network
from machine import Pin, Timer
from time import sleep_ms
import urequests
import onewire
import ds18x20
def setup(country, ssid, key):
network.country(country)
wifi = network.WLAN(network.STA_IF)
wifi.active(True)
wifi.disconnect()
LED = Pin(2, Pin.OUT)
LED.on()
timeout = 20000
wifi.connect(ssid,key)
timer = Timer(1)
timer.init(period=200, mode=Timer.PERIODIC,callback=lambda t:LED.value(not LED.value()))
s = network.STAT_IDLE
while timeout>0:
print("connecting",s)
s = wifi.status()
if s != network.STAT_CONNECTING:
break
sleep_ms(100)
timeout = timeout-100
if(s==network.STAT_GOT_IP):
timer.init(period=1000, mode=Timer.PERIODIC, callback=lambda t:LED.value(not LED.value()))
else:
timer.deinit()
LED.on()
return wifi
wifi=setup(country, ssid, key)
print("Connected")
url = "http://192.168.253.72:8080"
ow = onewire.OneWire(Pin(22))
presence = ow.reset()
if presence:
print("Device present")
else:
print("No device")
DS = ds18x20.DS18X20(ow)
roms = DS.scan()
while True:
DS.convert_temp()
temp = DS.read_temp(roms[0])
buf = str(temp).encode("utf-8")
try:
r = urequests.put(url, data=buf)
r.close()
except:
print("Server Not Online")
sleep_ms(500)
Page 267
from http.server import HTTPServer, BaseHTTPRequestHandler
from io import BytesIO
class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):
def log_message(self,*args, **kwargs):
pass
def do_PUT(self):
content_length = int(self.headers['Content-Length'])
body = self.rfile.read(content_length)
bodyString= body.decode(encoding="utf-8")
temp=float(bodyString)
print(temp)
self.send_response(200)
self.end_headers()
httpd = HTTPServer(('', 8080), SimpleHTTPRequestHandler)
httpd.serve_forever()
