Hello, I was wondering if on my HL7802 which does not support MQTT I can still use TCP to communicate with a mosquitto broker to send and receive data ?

Ok, So it is possible to use TCP to communicate with an MQTT broker. You need this documentation: mqtt-v5.0.pdf (1.8 MB) and maybe Wireshark to see your frames. You will have to make your MQTT request (frame) bit by bit so that the broker understands it then send it via TCP. Try installing an MQTT…

HL7802 - Using TCP for MQTT

IoT Modules HL78

jyijyi September 15, 2022, 9:17am 2

I think theoretically you can do so:

Topic		Replies	Views
Unable to establish connection to MQTT broker on AWS IoT Core HL78	1	1007	October 3, 2022
HL7800 AWS MQTT Document/Support IoT Modules	2	1163	March 13, 2020
HL7650 throwing SSL Connection error Legacy HL Series	8	1347	January 2, 2020
HL7810, MQTT Certs and ERROR code 907 Legacy HL Series debug	27	1114	November 2, 2023
TLS/SSL connections with HL7800 Module HL78	1	1890	August 1, 2019

HL7802 - Using TCP for MQTT

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