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Life & fun · May 7, 2026

SimIoTx — Virtual IoT Device Simulator

Test your IoT pipeline without hardware.

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What it does

Test your IoT pipeline without hardware. Virtual ESP32 simulators that send realistic sensor data to your MQTT broker or HTTP endpoint.

Does the same job

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  • Bytebeam2022 · ▲134

    Build ESP32-based IoT projects 10X faster

  • IO
    I open-sourced my AI toy company that runs on ESP32 and OpenAI realtime2025 · github.com · ▲177

    Hi HN! Last year the project I launched here got a lot of good feedback on creating speech to speech AI on the ESP32. Recently I revamped the whole stack, iterated on that feedback and made our project fully open-source—all of the client, hardware, firmware code. This Github repo turns an ESP32-S3 into a realtime AI speech companion using the OpenAI Realtime API, Arduino WebSockets, Deno Edge Functions, and a full-stack web interface. You can talk to your own custom AI character, and it responds instantly. I couldn't find a resource that helped set up a reliable, secure websocket (WSS) AI…

  • FA
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    As part of a little research and also some fun I decided to try my hand at seeing how small of an ESP32 board I can make with functioning WiFi.

  • LC
    LTE-connected IoT module with remote programming and NL data analysis2025 · youtube.com · ▲27

    Hi HN! I've been working on this IoT platform that aims to simplify deploying remote sensor networks by combining pre-configured LTE hardware with a cloud platform for remote programming and AI-based analysis. The main challenges I'm trying to solve are: 1. Eliminating infrastructure setup headaches for IoT deployments 2. Making remote programming and debugging practical for devices that might be difficult to access physically 3. Using natural language for analyzing sensor data, and possibly taking actions based on the analysis I'd really appreciate feedback on: 1. Is this approach to IoT…

  • Scratchboard2025 · ▲146

    Create, simulate, and collaborate on digital circuits

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    Prototype hardware visually, export real C++ for engineering

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