sinewave-ee / scd30-rs Goto Github PK
View Code? Open in Web Editor NEWA SCD30 driver crate
License: Apache License 2.0
A SCD30 driver crate
License: Apache License 2.0
Currently the most up-to-date version of the crate published is 0.3.0
on crates.io.
For the special 3-byte I2C communication, and for the CRC calculation, sensirion has published a crate. See here: https://crates.io/crates/sensirion-i2c
Maybe you find it useful.
The default address when calling Scd30::new()
is 0x61 << 1
. In binary, this is 0b0110_0001 << 1
. Or 0b1100_0010
. The top bit is lost because it's a 7-bit i2c address and indeed my logic analyzer picked up the attempted address at 0x42
(0b0100_0010
) when using it with the i2c driver from stm32f1xx_hal
. It works if you remove the shift. I would expect any drivers that behave correctly with the default address would be non-compliant, but obviously this would be a breaking API change nonetheless.
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