Timers / Alarms

roy Taylor

My timers runs once or twice then just stops.
The program is running fine.
It is a webserver and every x min it does a HTTP get to my server .
howver it just stops sending and I dont know how to debug it

Below is the timer

class Clock:

    def __init__(self):
        self.seconds = 0
        self.__alarm = Timer.Alarm(self._seconds_handler, 1 , periodic=True)

    def _seconds_handler(self, alarm):
        self.seconds += 1
        #print("%02d seconds have passed" % self.seconds)
        if self.seconds == 30:
            alarm.callback(dd("runnung timer ")) # stop counting after 10 seconds




def dd(msg):
    print(msg)
    senddattoweb("go")
    #abc = Clock()

robert-hh

@roy-Taylor That's good. Just a hint for forum postings:
If you enclose code in lines consisting of three backticks ```, it will be displayed properly.

roy Taylor

i think i got it working

will let it run all day and see
i took your advice swith it off then enable it again

class Clock:

    def __init__(self):
        self.seconds = 0
        self.__alarm = Timer.Alarm(self._seconds_handler, 1 , periodic=True)

    def _seconds_handler(self, alarm):
        self.seconds += 1
        #print("%02d seconds have passed" % self.seconds)
        if self.seconds == 30:
            alarm.callback(dd()) # stop counting after 10 seconds
            alarm.cancel()

abc = Clock()

def dd():
    print("dd running ")
    pin_handler5("dd")
    abc = Clock()

roy Taylor

I really appreciate the help I'm a PHP programmer so this is all to me .
We are building a 200 VDC lithium ion battery and this will send battery data to out server and collect data from CAN BUS

here is my main.py
i still need a second interrupt to get the CANBUS data

import usocket as socket
from network import WLAN
import machine
from machine import Pin
import os
import pycom
from utils import is_wifi_connected
import functions as fn

red = 0xFF5733
green = 0x93D51B
blue = 0x106FE9
yellow = 0xFBF963
orange = 0xE59F1A
pink = 0xE911E1

pycom.heartbeat(False)
print("heara 1")

from machine import Timer

class Clock:

def __init__(self):
    self.seconds = 0
    self.__alarm = Timer.Alarm(self._seconds_handler, 1 , periodic=True)

def _seconds_handler(self, alarm):
    self.seconds += 1
    #print("%02d seconds have passed" % self.seconds)
    if self.seconds == 30:
        alarm.callback(dd) # stop counting after 10 seconds
        alarm.cancel()

abc = Clock()

def dd(msg):
print(msg)
pin_handler5("dd")
abc = Clock()
return True

def cc(msg):
print(msg)

is_wifi_connected()

html = """<!DOCTYPE html>
<html>
<head> <title>ESP8266 Pins</title> </head>
<body> <h1>ESP8266 Pins</h1>
<table border="1"> <tr><th>Pin</th><th>Value</th></tr> %s </table>
</body>
</html>
"""

addr = socket.getaddrinfo('0.0.0.0', 80)[0][-1]
s = socket.socket()
s.bind(addr)
s.listen(5)

print('listening on', addr)

#used to test if data is sent with interupts - WORKS OK
def pin_handler5(arg):
pycom.rgbled(green)
global button_event_count
button_event_count += 1
#log("Button event at %s" % (arg.id()))
url1 =ureq2()
print()
#print (url1)
print()
http_get(url1)
pycom.rgbled(red)

p_in = Pin('P10', mode=Pin.IN, pull=Pin.PULL_UP)
p_in.callback(Pin.IRQ_RISING, pin_handler5)
button_event_count = 0

#'http://solrai-log.mobi/hyp/data4.php?jsdata= { "timestamp" : "2020-10-#10 12:40", SOC" : 55 , "SOH" : 99 ,"PV" : 100 ,"PI" : 100 ,"Status" : "Charging" ,"HC" : 100 , "LC" : 100 ,"AC" : 100 , "Cells" : [123,345,678,123,345,678,123,345,678,123,345,678,123,345,678,123,345,678,123,345,678,123,345,678,123,345,678] , "cell_temps" : [234,235,678,555], "pcb_temps" : [234,235,678,555] }&Serial=3c71bf878418&cpu_TEMP=1002020-10-10 18:00'

this gets the data ready to send . Still to do - fetch the data from the canbus

canbus program works on its own will have to do another timer to fect data from the canbus

def ureq2():
dates = "&LCTIME=" + "2020-10-10 12:40"
dta = ' { "timestamp" : "2020-10-10 12:40", SOC" : 55 , "SOH" : 99 ,"PV" : 100 ,"PI" : 100 ,"Status" : "Charging" ,"HC" : 100 , "LC" : 100 ,"AC" : 100 , "Cells" : [123,345,678,123,345,678,123,345,678,123,345,678,123,345,678,123,345,678,123,345,678,123,345,678,123,345,678] , "cell_temps" : [234,235,678,555], "pcb_temps" : [234,235,678,555] }'

#replace spaces with %20
news = fn.replace(dta)
dates  = fn.replace("2020-10-10 18:00")
serno = "&Serial="+str(Serial)+"&cpu_TEMP="+str(100)
serno = fn.replace(serno)
print (serno)
#return b'dta'
print()
print ("data4.php?jsdata="+news+serno+dates)
#LOGDATA(news+serno+dates)
print()
url = 'http://solrai-log.mobi/hyp/data4.php?jsdata='+news+serno+dates
headers = {'X-AIO-Key': 'xxxxxxxxxxxxxxxxxxx',  'Content-Type': 'application/json'}
dat = '#"value": "50"#'
#r = requests.post(url, data=dta, json=None, headers=headers)
#print (r.text)
return (url)

print()
print( ureq2())
print()

this send the data to the server and works well

def http_get(url):

_, _, host, path = url.split('/', 3)
addr = socket.getaddrinfo(host, 80)[0][-1]
s = socket.socket()
s.connect(addr)
s.send(bytes('GET /%s HTTP/1.0\r\nHost: %s\r\n\r\n' % (path, host), 'utf8'))
while True:
    data = s.recv(100)
    if data:
        print(str(data, 'utf8'), end='')
    else:
        break
s.close()

http = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection:close \r\n\r\n" #HTTP response

def listen(clientsocket):

# Receive maxium of 12 bytes from the client


r = clientsocket.recv(4096)


# If recv() returns with 0 the other end closed the connection
if len(r) == 0:
    clientsocket.close()
    return
else:
    # Do something wth the received data...
    print("Received: {}".format(str(r))) #uncomment this line to view the HTTP request
    pycom.rgbled(orange)

http = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection:close \r\n\r\n" #HTTP response

if "GET / " in str(r):
    #this is a get response for the page
    # Sends back some data
    clientsocket.send(http + "<html><body><h1> You are connection "+ str(99) + "</h1><br> Your browser will send multiple requests <br> <a href='/hello'> hello!</a><br><a href='/color'>change led color!</a></body></html>")

elif "GET /hello "in str(r):

    clientsocket.send(http + "<html><body><h1> Hello to you too! </h1><br> <a href='/'> go back </a></body></html>")

elif "GET /color" in str(r):
    pycom.rgbled(0xFFFFFF)
    clientsocket.send(http + "<html><body><h1> You are connection "+ str(99) + "</h1><br> Your browser will send multiple requests <br> <a href='/hello'> hello!</a><br><a href='/color'>change led color!</a></body></html>")

elif "GET /favicon.ico" in str(r):

pycom.rgbled(0xFFFFFF)

    clientsocket.send(http )

# Close the socket and terminate the thread

clientsocket.close()
pycom.rgbled(blue) # socket closed

print("here 1 ")
c = 0
x = True
while True:

(clientsocke, address) = s.accept()
c = c+ 1
print ("counter = " , c)
# Start a new thread to handle the client
listen(clientsocke)
pycom.rgbled(green)

robert-hh

@roy-Taylor You can do that, but it will replace the callback handler. Then, after a second, this other callback handler will be called, withe the same problem. What you could do is temporarily stopping callbacks, run the function and then activating the alarm again.
It may as well be that a callback is not called again until the last execution of it finished. I could look into the code, but you may simply try out.

roy Taylor

@robert-hh said in Timers / Alarms:

dd

thanks for replying

it can take longer than 1 second as it is a http get sending data to webserver .
like this below ?
if self.seconds == 30:
alarm.callback(dd)

robert-hh

@roy-Taylor In _seconds_handler() you replace the callback of the alarm by calling the function dd(). You wrote dd(..) instead of simply dd. Since the result of calling the function dd() is None, the callback is set to None and therefore is disabled.
If you want to get the function dd being called every 30 seconds, you may simply call it. However, it the execution takes longer than a second, you may get other problems.

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Timers / Alarms

this gets the data ready to send . Still to do - fetch the data from the canbus

canbus program works on its own will have to do another timer to fect data from the canbus

this send the data to the server and works well

pycom.rgbled(0xFFFFFF)

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