diff --git a/README.md b/README.md
index 82b5c70..e23a242 100644
--- a/README.md
+++ b/README.md
@@ -420,3 +420,9 @@ Reset is pulled low by STLink probe, it has 1V2 value when probe is connected ev
   * Jack holes too wide, wiggling
   * Display TBD, might be too small or not
 
+## Firmware
+Firmware seats in its own repository:
+https://github.com/everedero/asynthosc_fw
+
+Features and user manual is there :
+# https://everedero.github.io/asynth2osc/
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