From ea6b7c0be0d79a36aea08011d8f14c1e519097fc Mon Sep 17 00:00:00 2001
From: MichaelDvP <github@mdvp.de>
Date: Fri, 2 Jan 2026 16:13:14 +0100
Subject: [PATCH] revert commit 1a03b98, used fixed buffer length

---
 src/uart/emsuart_esp32.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/uart/emsuart_esp32.cpp b/src/uart/emsuart_esp32.cpp
index 2b7bf1fd3..f09e4542d 100644
--- a/src/uart/emsuart_esp32.cpp
+++ b/src/uart/emsuart_esp32.cpp
@@ -52,7 +52,8 @@ void EMSuart::uart_event_task(void * pvParameters) {
                     uart_read_bytes(EMSUART_NUM, telegram, length, portMAX_DELAY);
                     EMSESP::incoming_telegram(telegram, (uint8_t)(length - 1));
                 } else { // flush buffer up to break
-                    uart_flush_input(EMSUART_NUM);
+                    uint8_t buf[UART_FIFO_LEN];
+                    uart_read_bytes(EMSUART_NUM, buf, length, portMAX_DELAY);
                 }
                 length = 0;
             } else if (event.type == UART_BUFFER_FULL) {