From ebb3c90ac6a092163e0ed519d7a69aa4b9a9913d Mon Sep 17 00:00:00 2001
From: jsfraz <josefraz@seznam.cz>
Date: Mon, 12 Aug 2024 18:03:54 +0200
Subject: [PATCH] Aded Internal Serial Port.

---
 examples/Hello World/README.md                   |  2 +-
 examples/Internal Serial Console/README.md       | 16 ++++++++++++++++
 .../Internal Serial Console/sketch/sketch.ino    |  9 ---------
 .../sketch_pc_to_esp32/sketch_pc_to_esp32.ino    | 12 ++++++++++++
 4 files changed, 29 insertions(+), 10 deletions(-)
 delete mode 100644 examples/Internal Serial Console/sketch/sketch.ino
 create mode 100644 examples/Internal Serial Console/sketch_pc_to_esp32/sketch_pc_to_esp32.ino

diff --git a/examples/Hello World/README.md b/examples/Hello World/README.md
index ec9fe6c..d43b6e3 100644
--- a/examples/Hello World/README.md	
+++ b/examples/Hello World/README.md	
@@ -4,7 +4,7 @@
 
 1) Open Arduino IDE, create project and pste the following code:
 
-https://github.com/jsfraz/esp32-examples/blob/babe66bb216f46ae25eea57311abe4f44c718429/examples/Hello%20World/sketch/sketch.ino#L1-L8
+https://github.com/jsfraz/esp32-examples/blob/19d93d1fda92e05c4c6ff4420fcf878207474cf1/examples/Hello%20World/sketch/sketch.ino#L1-L8
 
 2) **Press and hold ESP32 Boot button** and click **Upload** in Arduino IDE. You can release the button when `Connecting...` text shows up in **Output**.
 
diff --git a/examples/Internal Serial Console/README.md b/examples/Internal Serial Console/README.md
index ade9233..e6b8c1d 100644
--- a/examples/Internal Serial Console/README.md	
+++ b/examples/Internal Serial Console/README.md	
@@ -1,5 +1,21 @@
 # Internal Serial Console
 
+You can communicate with ESP32 serial interface USB cable.
+
+## From ESP32 to PC
+
+You can use the same code as in Hello World example:
+
+https://github.com/jsfraz/esp32-examples/blob/19d93d1fda92e05c4c6ff4420fcf878207474cf1/examples/Hello%20World/sketch/sketch.ino#L1-L8
+
+You can use **Tools > Serial Monitor** or any other serial client like [Putty](https://www.putty.org/) to read data from the serial port.
+
+## From PC TO ESP32
+
+TODO codeblock
+
+You can use **Arduino IDE Serial Monitor** using **Tools > Serial Monitor** or any other serial client like [Putty](https://www.putty.org/) to send data to the serial port.
+
 ## Sources
 
 - [ESP32 - Serial Monitor](https://esp32io.com/tutorials/esp32-serial-monitor)
diff --git a/examples/Internal Serial Console/sketch/sketch.ino b/examples/Internal Serial Console/sketch/sketch.ino
deleted file mode 100644
index 95c2b6e..0000000
--- a/examples/Internal Serial Console/sketch/sketch.ino	
+++ /dev/null
@@ -1,9 +0,0 @@
-void setup() {
-  // put your setup code here, to run once:
-
-}
-
-void loop() {
-  // put your main code here, to run repeatedly:
-
-}
diff --git a/examples/Internal Serial Console/sketch_pc_to_esp32/sketch_pc_to_esp32.ino b/examples/Internal Serial Console/sketch_pc_to_esp32/sketch_pc_to_esp32.ino
new file mode 100644
index 0000000..683fc64
--- /dev/null
+++ b/examples/Internal Serial Console/sketch_pc_to_esp32/sketch_pc_to_esp32.ino	
@@ -0,0 +1,12 @@
+void setup() {
+  Serial.begin(9600);
+}
+
+void loop() {
+  // Check if there is data comming
+  if (Serial.available()) {
+    // Read string until newline character
+    String str = Serial.readStringUntil('\n');
+    Serial.println("String: " + str);
+  }
+}
\ No newline at end of file