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Showing content from https://github.com/JurajSadel/esp32-no-std-async-mqtt-demo below:

GitHub - JurajSadel/esp32-no-std-async-mqtt-demo

This is a simple demo that we will use on the upcoming Espressif DevCon23.

WARN: MSRV: 1.72

ESP32C3 variant: https://github.com/JurajSadel/esp32c3-no-std-async-mqtt-demo

ESP32S3 variant: https://github.com/JurajSadel/esp32s3-no-std-async-mqtt-demo

The application measures temperature (BMP180) and sends the results to MQTT via WiFi - everything is done asynchronously.

It's async no_std application that uses esp-hal, esp-wifi, and rust-mqtt crates. The main skeleton is made of [embassy_dhcp](https://github.com/esp-rs/esp-wifi/blob/68dc11bbb2c0efa29c4acbbf134d6f142441065e/examples-esp32 /examples/embassy_dhcp.rs) and no_std_temperature_logger with a bunch of changes.

The first change is MQTT part added. We are using MQTTv5. As a broker, we usepublic-mqtt-broker and websocket-client to see the results.

As a next change, we had to make bmp180.rs async.

You have to set the SSID and PASSWORD environment variables before building/running the program

cargo run --release

WARN: Be sure you are using release mode!

Licensed under either of:

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

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