From 85e40acbb9c47cff0d091bcd607da8299c6928ea Mon Sep 17 00:00:00 2001
From: Rutherther <rutherther@ditigal.xyz>
Date: Tue, 14 Jan 2025 17:16:00 +0100
Subject: [PATCH] feat(stm): Echo received number back

---
 stm_spi_funduino/src/main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/stm_spi_funduino/src/main.c b/stm_spi_funduino/src/main.c
index 75a6312..3c5b3e7 100644
--- a/stm_spi_funduino/src/main.c
+++ b/stm_spi_funduino/src/main.c
@@ -168,12 +168,18 @@ void main()
   display_convert_number(&display, 9999);
 
   // Application
+  bool received = false;
   while (1) {
     uint16_t rx;
     if (spi_receive(&spi, &rx, 1) == 0) {
       continue;
     }
 
+    if (received) {
+      spi_transmit(&spi, &rx, 1);
+    }
+    received = true;
+
     /* usart_transmit(&uart, &buffer[idx], 1); */
 
     display_convert_number(&display, rx);
-- 
2.48.1