Bare Metal: DS18B20

I&rsquo;ve been working through Google&rsquo;s Comprehensive Rust and, for the past couple of weeks, the Bare Metal Rust standalone course that uses the (excellent) micro:bit v2 that has a Nordic Semiconductor nRF52833 (an ARM Cortex-M4; interestingly its USB interface is also implemented using an ARM Cortex M0). There&rsquo;s a wealth of Rust tutorials for microcontrollers and I bought an…