From a95489d88fb971050ba7a68f4501dc88bf73103c Mon Sep 17 00:00:00 2001
From: Dmitriy Shishkov <me@dmitriy.icu>
Date: Sat, 11 Nov 2023 04:29:41 +0300
Subject: [PATCH] Update README.md

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 7c16750..a9c6db2 100644
--- a/README.md
+++ b/README.md
@@ -6,8 +6,8 @@ First semester:
 
 Second semester:
 
-...
-
+- Arduino sound synthesis: [Code](https://git.dm1sh.ru/dm1sh/arduino_speaker)
+ 
 Third semester:
 
 - [Gravitational lensing](./Gravitational_lensing.md)