Our #NuttX #RustLang I2C App reads a BME280 Register correctly! 🎉

https://github.com/lupyuen/rust-i2c-nuttx#test-i2c-port

#RustLang Embedded HAL defines a standard API for I2C Operations ... Let's wrap the #NuttX I2C ioctl() Commands and expose as Rust Embedded HAL interfaces

https://github.com/lupyuen/rust-i2c-nuttx#rust-embedded-hal

We wrap the #NuttX I2C ioctl() interface ... And expose as #RustLang Embedded HAL

https://github.com/lupyuen/rust-i2c-nuttx#read-i2c-register

Here's how we call #RustLang Embedded HAL to read an I2C Register ... Our #NuttX I2C App is much simpler now!

https://github.com/lupyuen/rust-i2c-nuttx#read-i2c-register

Our #NuttX App writes to an I2C Register ... By calling #RustLang Embedded HAL

https://github.com/lupyuen/rust-i2c-nuttx#write-i2c-register

Logic Analyser shows that #RustLang on #BL602 wrote the Wrong Value to our I2C Register ... Let's fix this 🤔

https://github.com/lupyuen/rust-i2c-nuttx#write-i2c-register

#BL602 has a peculiar I2C Port that uses I2C Sub Addresses ... Let's make it work with #RustLang Embedded HAL

https://github.com/lupyuen/rust-i2c-nuttx#fix-i2c-write

Still having problems with #BL602 I2C Writes ... And the peculiar I2C Sub Addresses ... Grrr 😬

https://github.com/lupyuen/rust-i2c-nuttx#fix-i2c-write

Trying all combinations of I2C Read / Write / Sub Address ... Till we find one that works on #BL602 #NuttX 👍

https://github.com/lupyuen/rust-i2c-nuttx#fix-i2c-write

I2C Write on #BL602 #NuttX works ONLY when we do an I2C Read AFTER the I2C Write ... So quirky! 🤔

https://github.com/lupyuen/rust-i2c-nuttx#fix-i2c-write

#BL602 #NuttX now writes correctly to I2C Registers! 🎉 There's an extra I2C Read at the end, but it should be harmless

https://github.com/lupyuen/rust-i2c-nuttx#fix-i2c-write

What happens if #BL602 #NuttX writes to an I2C Register without reading it afterwards? The I2C Write gets truncated or zeroed 🤔

https://github.com/lupyuen/rust-i2c-nuttx#fix-i2c-write

Now that #RustLang Embedded HAL runs OK on Apache #NuttX RTOS ... Let's test the Rust Driver for BME280 Sensor!

https://github.com/lupyuen/rust-i2c-nuttx#rust-embedded-driver-for-bme280

We add the #RustLang Driver for BME280 Sensor to our #NuttX App ... By editing Cargo.toml

https://github.com/lupyuen/rust-i2c-nuttx#rust-embedded-driver-for-bme280

Here's how we read the BME280 Sensor in our #RustLang App for #NuttX RTOS

https://github.com/lupyuen/rust-i2c-nuttx#rust-embedded-driver-for-bme280

#RustLang Driver for BME280 Sensor ... Runs OK on Apache #NuttX RTOS! 🎉

https://github.com/lupyuen/rust-i2c-nuttx#test-rust-driver-for-bme280

#RustLang Embedded HAL for Apache #NuttX RTOS has been published on crates.io ... Ready to be used in your own NuttX Rust Apps! 👍

https://github.com/lupyuen/rust-i2c-nuttx#rust-embedded-hal-for-nuttx

#RustLang talks to BME280 I2C Sensor on #BL602 and Apache #NuttX RTOS ... All shall be explained in this article

https://lupyuen.github.io/articles/rusti2c?1