tsl256x Light-To-Digital Converter

Platform agnostic driver for TSL256x series of light intensity sensors built using the embedded-hal

What works

• Getting raw sensor readings for both visible+IR spectrum and IR-only spectrum
• Using one of the three built in slave addresses, or any custom address
• Powering the chip on/off to conserve energy
• Setting sensor gain and integration time

TODO

• [ ] Add method to perform lux calculation (requires nostd implementation of exponentiation for f32)
• [ ] Add method to setup interrupts
• [ ] Support the TSL2560 (SPI version)

Example

```rust extern crate tsl256x; use tsl256x::{Tsl2561, SlaveAddr};

let sensor = Tsl2561::new(&mut i2c, SlaveAddr::default().addr()).unwrap();
sensor.power_on(&mut i2c); 

// Note sensor readings are zero until one integration period (default 400ms) after power on
iprintln!(&mut cp.ITM.stim[0], "IR+Visible: {}, IR Only: {}",
                    sensor.visible_and_ir_raw(&mut i2c).unwrap(),
                    sensor.ir_raw(&mut i2c).unwrap());

```

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.

Contribution

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.