From 5ccc0ef4e5b0b66818aee444644c1a721cb24df7 Mon Sep 17 00:00:00 2001
From: Dominic DiTaranto <me@domdit.com>
Date: Fri, 16 Jan 2026 17:41:08 -0500
Subject: [PATCH] OOO

---
 Out.cpp          |  40 ++++++++++++++++
 Out.h            |  24 ++++++++++
 master_clock.ino | 122 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 186 insertions(+)
 create mode 100644 Out.cpp
 create mode 100644 Out.h
 create mode 100644 master_clock.ino

diff --git a/Out.cpp b/Out.cpp
new file mode 100644
index 0000000..c5068c9
--- /dev/null
+++ b/Out.cpp
@@ -0,0 +1,40 @@
+// Out.cpp
+#include "Out.h"
+
+Out::Out(unsigned byte pin) {
+  pin = pin;
+  state = LOW;
+
+	div = 1;
+	cycle = 0;
+
+	dur = 0;
+	width = 25;
+	// this needs to dynamically change with width
+	len = period * (width / 100);
+
+  pinMode(pin, OUTPUT);
+}
+
+void Out::turnOn() {
+	cycle += 1;
+	if (cycle == div) {
+		state = HIGH;
+		digitalWrite(pin, state);
+		dur = millis();
+
+		cycle = 0;
+	}
+}
+
+void Out::turnOff() {
+	if (state == HIGH && millis() - dur >= len) {
+		state = LOW;
+		digitalWrite(pin, state);
+		dur = 0;
+	}
+}
+
+int Out::getState() {
+	return state;
+}
diff --git a/Out.h b/Out.h
new file mode 100644
index 0000000..9c36a71
--- /dev/null
+++ b/Out.h
@@ -0,0 +1,24 @@
+// Out.h
+#ifndef Out_h
+#define Out_h
+
+#include <Arduino.h>
+
+class Out {
+  private: 
+    unsigned byte pin;
+    unsigned char state;
+		unsigned int div;
+		unsigned int cycle;
+		unsigned long dur;
+		unsigned byte width;
+		unsigned long len;
+
+  public:
+    LED(unsigned byte pin);
+    void turnOn();
+    void turnOff();
+    int getState();
+}
+
+#endif
diff --git a/master_clock.ino b/master_clock.ino
new file mode 100644
index 0000000..69d9e35
--- /dev/null
+++ b/master_clock.ino
@@ -0,0 +1,122 @@
+#include <SPI.h>
+#include <Wire.h>
+#include <Adafruit_SSD1306.h>
+#include <Adafruit_GFX.h>
+#include <TimerOne.h>
+
+#include "Out.h"
+
+#define SCREEN_WIDTH 128
+#define SCREEN_HEIGHT 64
+#define OLED_RESET -1
+#define SCREEN_ADDRESS 0x3C
+
+Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
+
+int BPM = 100;
+unsigned long period = 60000000L / BPM;
+volatile boolean beatToggle = false;
+
+int clockDivCount = 0;
+
+int mode = 0;
+
+String modes[] = {
+  "CLK DIV"
+};
+
+Out out1(2);
+Out out2(3);
+Out out3(4);
+Out out4(5);
+Out out5(6);
+Out out6(7);
+Out out7(8);
+Out out8(9);
+
+
+// the setup function runs once when you press reset or power the board
+void setup() {
+  Serial.begin(9600);
+  initDisp();
+
+  Timer1.initialize(1000000);
+  Timer1.attachInterrupt(clock);
+  Timer1.setPeriod(period);
+}
+
+void initDisp() {
+  if (!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
+    Serial.println(F("SSD1306 allocation failed"));
+    for (;;); // Don't proceed, loop forever
+  }
+
+  display.clearDisplay();
+  display.setTextSize(1.5);
+  display.setTextColor(WHITE);
+  display.setCursor(0, 0);
+
+  String bpmString = "BPM: ";
+  String bpmCalculatedString = bpmString + BPM;
+  display.println(bpmCalculatedString);
+
+  String modeString = "MODE: ";
+  String currentModeString = modes[mode];
+  display.println(modeString + currentModeString);
+
+  display.display();
+}
+
+void clock(void) {
+  beatToggle = true;
+}
+
+void loop() {
+  if (beatToggle) {
+
+    out1.turnOn();
+
+    beatToggle = false;
+  }
+
+  out1.turnOff();
+}
+
+void clockDivider() {
+    clockDivCount += 1;
+
+    turnOnLed(0);
+
+    if (clockDivCount % 2 == 0) {
+      turnOnLed(1);
+    };
+
+    if (clockDivCount % 3 == 0) {
+      turnOnLed(2);
+    };
+
+    if (clockDivCount % 4 == 0) {
+      turnOnLed(3);
+    };
+
+    if (clockDivCount % 8 == 0) {
+      turnOnLed(4);
+    };
+
+    if (clockDivCount % 16 == 0) {
+      turnOnLed(5);
+    };
+
+    if (clockDivCount % 32 == 0) {
+      turnOnLed(6);
+    };
+
+    if (clockDivCount % 64 == 0) {
+      turnOnLed(6);
+    };
+
+    if (clockDivCount == 64) {
+      clockDivCount = 0;
+    };
+  }
+}