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write_fmt() method needed for write!() macro

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Include `use core::fmt::Write;` in serial example.
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Michael Mogenson
2019-03-27 11:37:44 -04:00
parent 2e48356a55
commit d37d5726ce
1 changed files with 1 additions and 0 deletions
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src/hello-world/02.00.UART.md
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@@ -24,6 +24,7 @@ To read and write to the serial bus from your computer, you will need to configu
## Code ## Code
``` rust ``` rust
use core::fmt::Write;
use microbit::hal::prelude::*; use microbit::hal::prelude::*;
use microbit::hal::serial; use microbit::hal::serial;
use microbit::hal::serial::BAUD115200; use microbit::hal::serial::BAUD115200;