I2c improvements #10

fadushin · 2024-01-26T02:13:20Z

This PR contains sever improvements to the SHT3x, BME280, and BH1750 I2C drivers, in addition to the i2c_bus.

The following high level changes are made:

All drivers now use atomic i2c functions, instead of enqueuing calls to be wrapped in begin/end transmission. This results in fewer calls to the I2C driver
BREAKING CHANGE: The BH1750 measurement values are now floats, instead of rationals. This follows previous changes to the SHT3x and BME280 drivers. (All of these drivers were written before floating point support in AtomVM)
Misc cosmetic naming changes to make the code more consistent.
Added start_link functions to the BH1750 driver, for completeness.
Updates to the rebar.confg files in the I2C examples to align with latest rebar plugin behavior

Tested with the forthcoming resource-based Nif driver.

…eued operations

…o float

fadushin added 5 commits January 22, 2024 08:00

Changed "Port" to "I2C" (since it might be a Nif)

77dcc87

Changed sht3x write to be a single atomic operation, rather than enqu…

b9b3066

…eued operations

Added start_link to bh1750 driver

57bee8e

BREAKING CHANGE: Changed return type in bh1750 driver from rational t…

d975efe

…o float

Updated rebar.config to include default packbeam params

c6e730e

arpunk approved these changes Jan 26, 2024

View reviewed changes

arpunk merged commit 453c4f4 into master Jan 26, 2024

Provide feedback