bq27xxx
| Crates.io | bq27xxx |
| lib.rs | bq27xxx |
| version | 0.0.2 |
| source | src |
| created_at | 2023-10-26 12:51:19.056626 |
| updated_at | 2023-12-24 21:30:19.470858 |
| description | BQ27xxx (bq27426, bq27427) platform-agnostic driver |
| homepage | |
| repository | https://github.com/dossalab/bq27xxx-rs |
| max_upload_size | |
| id | 1014447 |
| size | 17,612 |
Roman Liutko (dossalab)
documentation
README
BQ27xxx (bq27426, bq27427) driver written in Rust
BQ27xxx is a Texas Instruments (TI) series of fuel gauges - i.e special kind of chips used to monitor the health of lithium batteries.
Rust + async ❤️ embedded
This exact driver was developed on BQ27427 - a rather new part with integrated sensing resistor. I suspect that other chips can (or already are) supported - feel free to send me the patch if you notice any differences. The I2C interface here is slow and a bit quirky, so some commands may take seconds of processing time. In 'traditional' C-style driver this either requires blocking (i.e waiting until each operation is completed), or writing a state machine with state transition and error handling logic. Writing such driver is async Rust makes everything so much easier!
Features
- Uses embedded-hal async traits for compatability with a variety of hardware;
- Reading basic parameters such as voltage, temperature, state-of-charge and so on;
- Setting battery chemistry, executing basic commands.
TODO
- The chip has direct memory access which allows changing parameters such as design capacity. This API is not fully completed yet :(