Hi,
Thanks for the reminder
Here, we use this to test the LTE connection main.py: (The LTE callback does not work in 100% of the cases)
from network import LTE
import time
from http_get import http_get
import sys
import machine
def cb_handler(arg):
print("CB: LTE Coverage lost")
s = 120 # wait a while just to confirm that this wasn't a false positive and we truely lost connection
print("CB: sleep", s)
time.sleep(s)
print("CB: deinit")
lte.deinit()
print("CB: reset")
machine.reset()
# print("arg", type(arg))
# print("arg", arg)
# sys.exit()
print("init")
lte = LTE()
lte.lte_callback(LTE.EVENT_COVERAGE_LOSS, cb_handler)
print("attaching..",end='')
lte.attach(band=20, apn='simpoint.m2m')
for t in range(30):
if lte.isattached():
break
time.sleep(1)
print(".",end='')
if lte.isattached():
print("attached")
else:
print("Could not attach ... resetting")
machine.reset()
lte.connect()
print("connecting [##", end='')
while not lte.isconnected():
time.sleep(1)
print("#",end='')
print("] connected")
for i in range(20):
print("[ {} ]".format(time.ticks_ms()),end=' ')
print(http_get())
s = 2 ** i
print(i, s, s/60, s/3600)
time.sleep(s)
print("[ {} ]".format(time.ticks_ms()), " done")
With http_get() (and note that this is http only):
import socket
import time
def_url = 'http://detectportal.firefox.com/'
def http_get(url = def_url):
time_start = time.time()
dur_send = 0
dur_recv = 0
dur_total = 0
bps_send = 0
bps_recv = 0
len_recv = 0
cnt_recv = 0
success = False
try:
print("http_get(", url, ")")
_, _, host, path = url.split('/', 3)
print('getaddrinfo')
ip_port = socket.getaddrinfo(host, 80)[0][-1]
print(ip_port)
print('socket')
s = socket.socket()
print('connect')
s.connect(ip_port)
request = bytes('GET /%s HTTP/1.0\r\nHost: %s\r\n\r\n' % (path, host), 'utf8')
time_send = time.time()
print('send request')
s.send(request)
dur_send = time.time() - time_send
if dur_send:
bps_send = len(request) / dur_send
print('recv response')
time_recv = time.time()
s.settimeout(60)
while True:
data = s.recv(100)
if data:
cnt_recv += 1
len_recv += len(data)
dur_recv = time.time() - time_recv
if dur_recv:
bps_recv = len_recv / dur_recv
if cnt_recv % 1000 == 0:
print("received[", time.time(), "]:", len_recv, bps_recv)
success = True
# print(str(data, 'utf8'), end='')
pass
else:
break
print("recv: done")
print("close")
s.close()
except Exception as e:
print("http_get failed:", e)
dur_total = time.time() - time_start
return (success, dur_send, dur_recv, dur_total, len_recv, bps_send, bps_recv)
# def http_gets(url = def_url, count=1):
# for c in range(0, count):
# try:
# http_get(url)
# print("success[", c, "]")
# # break
# except Exception as e:
# print("failure[", c, "]:", e)
def http_gets(url = def_url, count=1):
for c in range(0, count):
print(c, http_get(url))
if __name__ == "__main__":
# http_get()
# http_get('http://micropython.org/ks/test.html')
http_gets('http://detectportal.firefox.com/')
# https_gets('http://pycom.io')
# http_get('http://ftp.snt.utwente.nl/pub/docs/rfc/rfc1498.json') # 1000 B
# http_get.http_gets('http://ftp.snt.utwente.nl/pub/docs/rfc/rfc1535.html') # 10 KiB
# http_get('http://ftp.snt.utwente.nl/pub/docs/rfc/rfc753.html') # 100 KiB
# http_get('http://ftp.snt.utwente.nl/pub/test/1M') # 977 KiB
# http_get('http://ftp.snt.utwente.nl/pub/test/100M')
# http_get.http_gets('http://ftp.snt.utwente.nl/pub/test/10M')
Atm I have no simcard on hand to properly test it, but I made no changes since last time I used it
Gijs
