Add descriptions to all RP2040 examples. Some need hardware that was not specified.

2023-07-13 11:16:11 +02:00
parent d979841f17
commit 588c0479f5
33 changed files with 122 additions and 5 deletions
--- a/examples/rp/src/bin/pio_hd44780.rs
+++ b/examples/rp/src/bin/pio_hd44780.rs
@ -1,3 +1,6 @@
+//! This example shows powerful PIO module in the RP2040 chip to communicate with a HD44780 display.
+//! See (https://www.sparkfun.com/datasheets/LCD/HD44780.pdf)
+
 #![no_std]
 #![no_main]
 #![feature(type_alias_impl_trait)]