From 73e1b3195dad9c9a11009dc01504268a6cbea9d7 Mon Sep 17 00:00:00 2001
From: Tom Nordal <tnordal@gmail.com>
Date: Mon, 24 Jun 2024 20:12:44 +0200
Subject: [PATCH] copy lesson 45

---
 ShiftRegLeds/lessons/lesson45.cpp | 33 +++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 ShiftRegLeds/lessons/lesson45.cpp

diff --git a/ShiftRegLeds/lessons/lesson45.cpp b/ShiftRegLeds/lessons/lesson45.cpp
new file mode 100644
index 0000000..454ffd0
--- /dev/null
+++ b/ShiftRegLeds/lessons/lesson45.cpp
@@ -0,0 +1,33 @@
+// https://www.youtube.com/watch?v=-WDO4mi2I68&list=PLGs0VKk2DiYw-L-RibttcvK-WBZm8WLEP&index=45
+
+#include <Arduino.h>
+
+int latchPin = 11;
+int clockPin = 9;
+int dataPin = 12;
+
+int dt = 100;
+byte ledByte = 0b11111110;
+
+
+void setup() {
+  // put your setup code here, to run once:
+  Serial.begin(9600);
+  pinMode(latchPin, OUTPUT);
+  pinMode(clockPin, OUTPUT);
+  pinMode(dataPin, OUTPUT);
+
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  digitalWrite(latchPin, LOW);
+  shiftOut(dataPin, clockPin, LSBFIRST, ledByte);
+  digitalWrite(latchPin, HIGH);
+
+  Serial.println(ledByte, BIN);
+  delay(dt);
+
+  ledByte = ledByte * 128 + ledByte / 2; // Shift right
+  // ledByte = ledByte / 128 + ledByte * 2; // Shift left
+}