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odelot / aws-mqtt-websockets

Implementation of a middleware to use AWS MQTT service through websockets, aiming the ESP8266 plataform
GNU Lesser General Public License v3.0
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If internet becomes unavailable; ESP goes in wdt reset #11

Closed devansh17 closed 6 years ago

devansh17 commented 8 years ago

Hello, I checked out the code and works fine with AWS. However, I came across one issue. After MQTT is subscribed and running, and then at any point after this if the ESP does not get access to internet (Wifi router is on), ESP goes in wdt reset mode. Maybe someone else also encountered this issue and has a fix for it?

thehellmaker commented 7 years ago

I have the same issue. What I figured out is client = new MQTT::Client<IPStack, Countdown, maxMQTTpackageSize, maxMQTTMessageHandlers>(ipstack);

Reduces the memory from 30KB to 10KB and it crashed because of out of memory. Still trying to figure out where the memory is getting consumed.

odelot commented 6 years ago

@devansh17 it was a bug from arduino/esp8266 sdk https://github.com/esp8266/Arduino/issues/3537

It is already fixed in the version 2.4.1.

@thehellmaker I've uploaded working examples with a not dynamic allocated client. You can also use another mqtt client, as pubsubclient. Another way to get memory is reduce the circular buffer that make the interface between the mqtt client and the websocket layer. Remember that this can limit the size of messages sent and received.

AWSWebSocketClient awsWSclient(1000); //it is using 1000 bytes