Initiating connection to AWS

[bmtd111]

Dear People
I am currently working on a System that needs to connect to AWS. Sadly i get the following Error messages when I Execute my code:

I am using an ATOM Lite and UIFlow 1.11.3

I hope you guys can help me

With kind regards,
TD

[bmtd111]

Line 51 in my code is just aws.start() and it seems to call functions in the libraries. Maybe there is a bug in IoTCloud/AWS.py?

[ajb2k3]

Please post all the python code.
errors don't always apply to a specific line and also don't count empty lines.
IIRC (and there's a possibility I don't as it was last year) have you set up the digital twin and permissions on AWS for the code to connect?

[bmtd111]

Thank you for your reply!

Here is my Pythoncode:

from m5stack import *
from m5ui import *
from uiflow import *
import machine
import wifiCfg
from IoTcloud.AWS import AWS
import ntptime
import json
PingCounter = None
ThingsName = None
currentDoorState = None
lastDoorState = None
from numbers import Number

@timerSch.event('AWSTimer')
def tAWSTimer():
global PingCounter, ThingsName, currentDoorState, lastDoorState, pin1
if wifiCfg.wlan_sta.isconnected():
PingCounter = (PingCounter if isinstance(PingCounter, Number) else 0) + 1
aws.publish(str('DoorState/ping'),str((json.dumps(({'time':(ntp.formatDatetime('-', ':')),'ping':PingCounter,'reconnect':False})))))
else:
wifiCfg.doConnect('BesserMITTAG-IOT', "Zsip-uwYpDe'")
PingCounter = (PingCounter if isinstance(PingCounter, Number) else 0) + 1
aws.publish(str('DoorState/ping'),str((json.dumps(({'ping':PingCounter,'time':(ntp.formatDatetime('-', ':')),'reconnect':True})))))
pass

@timerSch.event('restartTimer')
def trestartTimer():
global PingCounter, ThingsName, currentDoorState, lastDoorState, pin1
machine.reset()
pass

import gc
wifiCfg.doConnect('blank', "blank'")
ntp = ntptime.client(host='de.pool.ntp.org', timezone=1)
timerSch.run('restartTimer', 10800000, 0x00)
PingCounter = 0
ThingsName = 'D30002'
aws = AWS(things_name=ThingsName, host='hostName', port=8883, keepalive=1000, cert_file_path="/flash/res/certificate.pem.crt", private_key_path="/flash/res/private.pem.key")
aws.start()
gc.collect()
aws.publish(str('DoorState/connect'),str((json.dumps(({'connect':'request'})))))
timerSch.run('AWSTimer', 900000, 0x00)
pin1 = machine.Pin(26, mode=machine.Pin.IN, pull=machine.Pin.PULL_UP)
currentDoorState = pin1.value()
while True:
lastDoorState = currentDoorState
currentDoorState = pin1.value()
if lastDoorState == 1 and currentDoorState == 0:
rgb.setColorAll(0x33cc00)
aws.publish(str('DoorState/test'),str((json.dumps(({'open':(ntp.formatDatetime('-', ':')),'Message':'15','TopicArn':'arn:aws:sns:eu-central-1:684143602652:L-from-device','MessageAttributes':({'DataType':'String','StringValue':'door-opened'}),'DeviceID':({'DataType':'String','StringValue':'A1005'})})))))
elif lastDoorState == 0 and currentDoorState == 1:
rgb.setColorAll(0xff0000)
aws.publish(str('DoorState/test'),str((json.dumps(({'close':(ntp.formatDatetime('-', ':')),'Message':'16','TopicArn':'arn:aws:sns:eu-central-1:684143602652:L-from-device','MessageAttributes':({'DataType':'String','StringValue':'door-closed'}),'DeviceID':({'DataType':'String','StringValue':'A1005'})})))))
wait_ms(2)

I have set everything up in AWS, the connection was already established and worked fine.
Do you mean a device shadow with digital twin? I dont see how that could resolve the issue.

With kind regards,
TD

[ajb2k3]

If I read correctly it means that the MQTT connection to AWS wasn't acknowledge which meant permission was refused.
Have you restarted the ATOM or has AWS changed anything?
Sorry, I haven't used AWS in a while

[bmtd111]

I tried restarting it, that didnt change anything.

@ajb2k3 said in Initiating connection to AWS:

If I read correctly it means that the MQTT connection to AWS wasn't acknowledge which meant permission was refused.
Have you restarted the ATOM or has AWS changed anything?
Sorry, I haven't used AWS in a while

Were did you read that the connection wasnt established?

[ajb2k3]

Combination of error 09 (authentication acknowledgment error) and OS error shown in the command terminal