add switch for RP2040 && PRO_MICRO_RP2040

Cargo.toml

@@ -74,3 +74,8 @@ debug-assertions = false
 incremental = false
 lto = 'fat'
 opt-level = 3
+
+[features]
+default = ["pro_micro_rp2040"]
+rp2040 = []
+pro_micro_rp2040 = []

src/main.rs

@@ -62,9 +62,12 @@ fn main() -> ! {
     // If you have a Pico W and want to toggle a LED with a simple GPIO output pin, you can connect an external
     // LED to one of the GPIO pins, and reference that pin here. Don't forget adding an appropriate resistor
     // in series with the LED.
-    // let mut led_pin = pins.led.into_push_pull_output();
+    #[cfg(feature = "rp2040")]
+    let mut led_pin = pins.led.into_push_pull_output();
     // In this case gpio17 is the led pin(for Pro Micro RP2040 16MB)
+    #[cfg(feature = "pro_micro_rp2040")]
     let mut led_pin = pins.gpio17.into_push_pull_output();
+
     loop {
         info!("on!");
         led_pin.set_high().unwrap();