diff --git a/README.md b/README.md
index 2ccaf05..01a382f 100644
--- a/README.md
+++ b/README.md
@@ -59,12 +59,12 @@ platformio run -t upload && platformio device monitor -b 115200
 
 ## ToDo
 * Prototype
+* reimplement tasks with a queue, see **i2s_push_sample()** from *esp-idf/components/driver/i2s.c*
 * Keypad layout
 * internal DAC?
 * Add-ons?
 * dynamic keypad thresholds
 
-
 ## References
 
 [ESP32 overview]: http://esp32.net