Log number of lights

src/main.rs

@@ -53,15 +53,19 @@ fn main() -> ProgramResult<()> {
 
     let (message_tx, message_rx) = channel::<error::Message>();
 
+    let num_lights: u16 = std::env::var("NUM_LIGHTS")
+        .as_ref()
+        .map(String::as_str)
+        .unwrap_or("89")
+        .parse()
+        .unwrap();
+
+    eprintln!("Number of lights: {num_lights}");
+
     make_child(message_tx.clone(), move |message_tx| -> ProgramResult<()> {
         let mut strip = LedStrip::new(strip::Config {
             // I have 89 right now, but start off with 20
-            num_lights: std::env::var("NUM_LIGHTS")
-                .as_ref()
-                .map(String::as_str)
-                .unwrap_or("89")
-                .parse()
-                .unwrap(),
+            num_lights,
             // Skip 14 lights
             shift_lights: 14,
             // Scaling factor (scale 0..255)