PhilMarkgraf[m]: > <@shakencodes:matrix.org> Why are you initializing the const items using as_byte_slice()? Have you tried just making a simple array?
> ```rust
> pub const START_PERIODIC_MESUREMENT: [u8, 2] = [0x21, 0xb1];
> pub const IPREAD_MEASUREMENTOLA: [u8, 2] = [0xec, 0x05];
> pub const STOP_PERIODIC_MEASUREMENT: [u8, 2] = [0x3f, 0x86];
> ```

I think those would need to be `[u8; 2]` rather than with a comma