ESP8266 Community Forum

Hello,

Am new to esp8266 and protocols however because of the SDK(https://github.com/espressif/ESP8266_RTOS_SDK) ,have been able to develop and, was able understand quite a lot , Its been a week i got stuck with this problem. Any one protocol is working either MQTT /webserver.
If webserver is started mqtt is getting disconnected. If mqtt is connected Webserver throws error!
Individually both are working fne.
In this project am using softap_prov code(wifi cred) +mqtt (ssl)+http server(simple)
how to resolve this problem ?

Thank you

I've been using the http_server and mqtt_over_ssl together and they're working fine

I'd start checking the heap free size while you application is running, cause ssl uses a large amount of ram memory

in order to save memory I'm using ecc certificates and wolfssl instead of mbedtls
as a drawback the handshake time increased as well as the binary size

hi,

Thanks for the response.
somehow managed to get both working with ssl ,mqtt, webserver,ota,uart,wifiprov,spiffs by monitoring the memory with esp_get_minimum_free_heap_size am getting 10KB,still trying to optimize, but what should be the minimum heap to avoid any errors?
am also planning to checkout ecc, wolfssl after coming to a concrete conclusion.

Thanks

Hi, it may not be what you're looking for. But since you're working on MQTT protocol, this tutorial may help you. This is regarding ESP32. Here you'll know the A to Z of MQTT protocol. You'll also get the basic example code.
https://www.theengineeringprojects.com/ ... -mqtt.html