diff --git a/src/main.rs b/src/main.rs
index f29fb27..4e778f1 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -73,6 +73,7 @@ async fn main(spawner: Spawner) {
     let led_channel = LED_CHANNEL.init(TripleBuffer::new(leds));
     let (led_sender, led_receiver) = led_channel.split();
 
+    // initialize DSP lib FFT buffers
     unsafe {
         esp_nofail!(esp_dsp::dsps_fft2r_init_fc32(
             std::ptr::null_mut(),
@@ -84,6 +85,7 @@ async fn main(spawner: Spawner) {
         ));
     }
 
+    // spawn all embassy tasks
     spawner
         .spawn(mic_input_task(
             peripherals.i2s0,