myEmbassy

Base on open source hardware Raspberry Pi Pico W and Embassy embedded (no_std) async facilities

Description

every 5 seconds temperature sensor trigger out async function through channel. And this out function send message to cloud.

Running the example

• cargo install probe-run
• cd rpi-pico-w
• WIFI_NETWORK=MyWifiNetwork WIFI_PASSWORD=MyWifiPassword cargo run --release

Receive cloud message

websocat wss://ws-integration.sandbox.drogue.cloud/embassy-app -H="Authorization: Bearer $(drg whoami -t)"

Open source hardware Raspberry Pi Pico W

Getting start

0. git clone https://github.com/overheat/my_embassy
1. Raspberry Pi Pico W, start TCP server and listen 1234 port🕸️
2. Linux PC, nc <ip-address> <port>, and send data🔤
3. Raspberry Pi Pico W, using internal temperature🌡️
4. Raspberry Pi Pico W, Wi-Fi upload sensor data to Cloud(drogue.io)☁️
5. PC websocket subscribe MQTT topics for monitoring👂

Rust(embedded async) contribution

Layer	Repo	PR	Issue
app	drogue		1
runtime	embassy	2	4
TCP/IP	smoltcp	1
物理层	pico	1	1
debug	probe		3

总结

异步IO框架Embassy使嵌入式编程更简洁，2022年底embedded-hal-async/embedded-nal-async等trait即将稳定，期待2023有完善的网络协议栈实现。 可以带来快速启动，成本低廉，易于维护等好处。

Todo:

• 增加关键数据个人云存储功能，比如加密货币的token/密码/日记/语音等
• 在Raspberry Pi Pico W上启动DNS服务，利用云连接做到类似httpsDNS的个人工具
• 在Raspberry Pi Pico W上启动NTP服务，甚至是最新的PTP（us级别的）时间同步
• 其他？GPG？

附录

1. Rust embedded 生态

维护者	名称	描述
*Drogue	embedded-tls	a Rust-native TLS 1.3 implementation
Drogue	embedded-update	firmware update protocol
*Drogue	reqwless	HTTP client
Embassy	embedded-io	IO traits for embedded systems.
*Rust Embedded Community	embedded-nal	An Embedded Network Abstraction Layer
*Smoltcp	smoltcp	a standalone, event-driven TCP/IP stack
Rust Embedded Community	embedded-storage	An Embedded Storage Abstraction Layer
Rust Embedded Community	embedded-sdmmc-rs	A SD/MMC library with FAT16/FAT32 support, suitable for Embedded Rust systems
Rust Embedded	embedded-dma	DMA
Rust Embedded	embedded-alloc	A heap allocator for Cortex-M processors
Rust Embedded	embedded-hal	A Hardware Abstraction Layer (HAL) for embedded systems

* Networking 相关