The ds18b20 crate is not ideal for us. For instance, when wrapping an
address, it first reads the config register. This is something we don't
need to do when booting up the sensor in a known (default) state.
Additionally, by implementing the driver code ourselves, we have
more control over the sensor readings.
This commit replaces the external ds18b20 crate with a custom module
that does a temperature reading directly using the one-wire crate. It
also gets rid of the unnecessary one-wire bus scan when initializing the
bus. Last but not least, the raw data is now returned (as u16), as
opposed to the external driver which would convert the measurement into
an f32. (We need the raw data in order to make use of #82.)
As a nice side effect, the flashed binary is now 1 KiB smaller!
The
ds18b20crate is not ideal for us. For instance, when wrapping an address, it first reads the config register. This is something we don't need to do when booting up the sensor in a known (default) state. Additionally, by implementing the driver code ourselves, we have more control over the sensor readings.This commit replaces the external
ds18b20crate with a custom module that does a temperature reading directly using the one-wire crate. It also gets rid of the unnecessary one-wire bus scan when initializing the bus. Last but not least, the raw data is now returned (as u16), as opposed to the external driver which would convert the measurement into an f32. (We need the raw data in order to make use of #82.)As a nice side effect, the flashed binary is now 1 KiB smaller!
Raw measurements being logged in dev mode: