Building a Low-Cost IoT Device for Community Engagement via Messaging Platforms

[henry190]

Over the past few months, I’ve been experimenting with using STM32 microcontrollers and low-power connectivity modules to create a portable device that can post scheduled updates to different messaging platforms.

The idea came from wanting to connect hobby communities in new ways — for example, photography circles, coding bootcamps, and even poetry groups that share verses daily with members.

Using MQTT as the main protocol, I built a workflow that sends scheduled text updates to a web API, which then posts them to a messaging group of choice. The main challenges were:

1. Power efficiency (solved with deep sleep modes)

2. Reliable connectivity in low-signal areas (solved with antenna tuning)

If anyone here is working on similar IoT-to-messaging integrations, I’d be happy to share my code snippets and circuit diagram.

[TDK]

This seems very much like an AI fraud post. No details, generic talking points, asking people to message you.

[Andrew Neil]

Not really sure where is the benefit of doing this on an STM32?

Surely, the "web API" itself could just send scheduled updates?

Or any computer/server/Raspberry Pi which can run a scheduled task?

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@henry190 wrote:

I’d be happy to share my code snippets and circuit diagram.

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Put it on GitHub and share the URL?