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Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "esp32c3-playground"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+esp-hal = { version = "0.17.0", features = ["esp32c3"] }
+panic-halt = "0.2.0"

src/main.rs

@@ -0,0 +1,47 @@
+#![no_std]
+#![no_main]
+
+use esp_hal::clock::ClockControl;
+use esp_hal::delay::Delay;
+use esp_hal::gpio::IO;
+use esp_hal::peripherals::Peripherals;
+use esp_hal::prelude::*;
+
+use panic_halt as _;
+
+#[entry]
+fn main() -> ! {
+    let p = Peripherals::take();
+    let sys = p.SYSTEM.split();
+    let clocks = ClockControl::boot_defaults(sys.clock_control).freeze();
+
+    let io = IO::new(p.GPIO, p.IO_MUX);
+
+    let mut r = io.pins.gpio5.into_push_pull_output();
+    let mut g = io.pins.gpio6.into_push_pull_output();
+    let mut b = io.pins.gpio7.into_push_pull_output();
+
+    let _btn = io.pins.gpio9.into_pull_up_input();
+
+    let delay = Delay::new(&clocks);
+
+    for [r_state, g_state, b_state] in [
+        [true, false, false],
+        [true, true, false],
+        [false, true, false],
+        [false, true, true],
+        [false, false, true],
+        [true, false, true],
+    ]
+    .iter()
+    .cycle()
+    {
+        r.set_state(*r_state);
+        g.set_state(*g_state);
+        b.set_state(*b_state);
+
+        delay.delay_millis(200u32);
+    }
+
+    loop {}
+}