From 0e0f83905bb3ee79f4917927479cdaf710e8ac07 Mon Sep 17 00:00:00 2001
From: sowgro <tpoke.ferrari@gmail.com>
Date: Thu, 9 Oct 2025 21:43:08 -0400
Subject: Complete input and led part of project

---
 project/Core/Src/Homework/hw4.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'project/Core/Src/Homework/hw4.c')

diff --git a/project/Core/Src/Homework/hw4.c b/project/Core/Src/Homework/hw4.c
index 2154cd4..7bafb38 100644
--- a/project/Core/Src/Homework/hw4.c
+++ b/project/Core/Src/Homework/hw4.c
@@ -11,12 +11,15 @@
 #include <stdio.h>
 
 
-void read_and_print_char_nonblocking() {
+char read_and_print_char_nonblocking() {
 	uint8_t ch = USART_Read_Nonblocking(USART2);
-	printf("%c", ch);
+	if (ch) {
+		printf("%c", ch);
+	}
 	if (ch == '\r') {
 		printf("\n");
 	}
+	return ch;
 }
 
 void hw4_run() {
-- 
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