Rust drivers for the SIM7000 series of modems

The Techno Creatives

Last update: Dec 29, 2022

Related tags

Utilities sim7000

Overview

sim7000

This crate provides drivers for the SIM7000 series of chips. The current code implements enough commands to bring up a TCP connection and run GPS.

This crate runs on no_std and works with the latest stable rust.

License

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.

Comments

Redesign line reader

The current line reader was horribly broken. The redesign makes the reader match the datasheet more closely. Insead of reading until \r\n and returning all text up until then, the new reader finds the leading \r\n that preceeds all sim7000 lines. It then reads up to the following \r\n to terminate the line. This resolves intermittent issues with echo as well as some unsolicited result codes.

opened by ZoeyR 1
Fix issue with AT+CPSI in GSM mode

The sim7000 has a bug where in GSM mode the AT+CPSI command will respond with two newlines after the informational line instead of just one. Change the parser to be able to handle this and add tests to prevent regression.

opened by ZoeyR 1
Log improvements
Make logging generally less verbose (change some log::infos to log::debugs, etc)

Add ATRequest: Debug bound (or defmt::Format if defmt feature is enabled)

Add error log on failed AT commands, telling us what command failed

Fix parsing of CMS and CME error codes
opened by hulthe 0
Fix AT+CIPRXGET decoding

The sim7000 does not follow the specification in the datasheet for responding to AT+CIPRXGET. The datasheet indicates that there should only be one +CIPRXGET: line, however there can be more than one if data is not ready yet. In this case the sim7000 will respond with a potentially arbitrary number of lines containing +CIPRXGET: 1 before responding with the expected response and data.

opened by ZoeyR 0
[WIP] Reliability improvements
Fix AsyncDrop hanging when modem restarts

Add timeouts to all AT commands

Purge windows line endings

Make line reader only look for \n instead of \r\n (voltage warnings only ends with \n)

Add more docs

Other stuff
opened by hulthe 0
fix: Add release system base on semver

Here a sample of CI to use if you want to deliver a library on crate.io and docs.rs.

You will need to configure a GH_TOKEN with public_repo right.

You will need to configure CARGO_REGISTRY_TOKEN too, https://crates.io/settings/tokens, it's here to create a new token for the project.

opened by lperdereau 0
Contribution to your project

Hello,

With a friend we starting developing multiple clients for SIM7000, as a first rust project. And we found out your project after few week of work. Could it be possible to publish your work on crate.io ? We made a little GitHub CI to publish our work on crate.io and docs.rs

Here our project githu.com docs.rs crate.io . It's not very good and we will be happy to work with you a few to use your work.

We will be happy to submit a PR for CI and explain it to you if necessary. Moreover we can contribute for a feature like MQTT support as this document is describing it.

Regards

opened by lperdereau 2

Owner

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