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MQTTS Connection to Adafruit IO Platform Example

Implement secure MQTTS connection from W55MH32 to Adafruit IO platform for bidirectional cloud communication, remote LED control, and sensor data publishing.

ronpang

Published April 30, 2026

MQTTS Connection to Adafruit IO Platform Example

Project description

This article details how to implement the MQTTS protocol on the W55MH32 chip. Through practical examples, we demonstrate how to use W55MH32's MQTTS protocol to connect to the Adafruit IO IoT platform, enabling bidirectional data exchange between the device and the cloud. For other network protocols such as TCP, DNS, and DHCP, please refer to the relevant sections. For W55MH32 initialization, refer to the Network install chapter. MQTTS Introduction MQTTS (MQTT Secure / MQTT over SSL/TLS) is a security-enhanced version of the standard MQTT protocol. By introducing an SSL/TLS encryption layer…

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