Search found 4 matches

by steve_b
Mon Nov 11, 2019 5:11 am
Forum: Technical Discussion
Topic: MQTT connection to AWS-IOT-CORE
Replies: 8
Views: 1120

Re: MQTT connection to AWS-IOT-CORE

Just a quick update, I've created my own MQTT module that uses read / write when the socket is secure using ussl, and this works fine. To summarise, in case anyone else is looking to use MQTT to connect to AWS (in my case from OpenMV v3.5.0) : The cert and key files require to be in binary format Th...
by steve_b
Fri Nov 08, 2019 10:41 am
Forum: Technical Discussion
Topic: MQTT connection to AWS-IOT-CORE
Replies: 8
Views: 1120

Re: MQTT connection to AWS-IOT-CORE

I got a bit delayed on some other projects but managed to back on this again today. To be on the safe side I went back to basics and verified my code and key/cert on some other platforms, and one thing I did discover was that on an ESP8266 based MicroPython system I needed to format my certificate/k...
by steve_b
Tue Nov 05, 2019 4:29 am
Forum: Technical Discussion
Topic: MQTT connection to AWS-IOT-CORE
Replies: 8
Views: 1120

Re: MQTT connection to AWS-IOT-CORE

Yes, I just realised it was a beta image, apologies, should have mentioned that in the original post, however, I have now updated to the 3.5.0 release and removed the mqtt.py from flash, basically getting the same error except at a different line number in mqtt.py eg mbedtls_ssl_handshake error: -9 ...
by steve_b
Mon Nov 04, 2019 12:16 pm
Forum: Technical Discussion
Topic: MQTT connection to AWS-IOT-CORE
Replies: 8
Views: 1120

MQTT connection to AWS-IOT-CORE

Hi, I'm working on a proof of concept at present that requires some simple feature extraction from an image captured with a Lepton sensor, and the key params of the features periodically returned from the camera to our core systems via MQTT, in this case through the Amazon AWS-IOT-Core MQTT broker. ...

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