Sample code with devicetwin various issues (CA-25)

[liudr]

Hi, I am very new to this but I'm learning. I have azure account, created a device. Have host name, device id and sharedaccesskey.

Everything looks good on azure. I can see under devicetwin that the "car" shows up with all its properties, make, oil change, etc.

Now the issues: I am trying to update devicetwin say the maxspeed. I went in and change maxspeed to 70, save it. A second after saving, it reverts to the 100, which is the value initially sent by esp.

On esp side, mqtt seems to have trouble connecting: Error: Time:Thu Oct 3 04:58:37 2019 File:D:/Downloads/msys32_iot/home/user/esp/esp-azure/azure-iot-sdk-c/iothub_client/src/iothubtransport_mqtt_common.c Func:mqtt_error_callback Line:1864 Mqtt Ping Response was not encountered. Reconnecting device... This pops up once in a while, meaning esp keeps trying but mqtt just won't work.

I also tried direct method. The sample code seems to have getCarVIN method to return a VIN and returns { } for all other methods. I tried this method several times and got null. Coincidentally, the esp side shows: E (246635) esp-tls: write error :-80: Info: Error from SSL_write: -80 E (246645) esp-tls: write error :-80: Info: Error from SSL_write: -80

I've downloaded the latest msys (2018-10) and V3.3 of esp-idt and followed the install instructions. I really appreciate if someone could give me a hand here.

[liudr]

Which version is esp-idf and esp-mqtt in when this repo was last updated? How do I use those older versions? I could use some help with the git commands. Thanks.

[shahpiyushv]

@liudr , which value are you changing? desired_maxSpeed or reported_maxSpeed?

[shahpiyushv]

@liudr , I didn't hear back on this. A bit too late to ask, but is this still valid?