From 5cf3001b2a01b7e942979f7871f0f8f3119b1158 Mon Sep 17 00:00:00 2001
From: Matt <sixteenmillimeter@riseup.com>
Date: Sat, 14 Feb 2015 18:33:26 -0500
Subject: [PATCH] Initial commit of project

Intervalometer code for arduino or arduino trinket pro
---
 intval2.ino | 152 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 152 insertions(+)
 create mode 100644 intval2.ino

diff --git a/intval2.ino b/intval2.ino
new file mode 100644
index 0000000..7e388c2
--- /dev/null
+++ b/intval2.ino
@@ -0,0 +1,152 @@
+//Intval for pro trinket arduinos
+//Using 12vdc motors in place of a stepper
+//Microswitch for control
+
+#include <SoftModem.h>
+#include <ctype.h>
+/*
+----------------------------------------------------
+
+----------------------------------------------------
+*/
+
+//FSK INPUT PIN 6
+SoftModem modem;
+
+/* ------------------------------------------------
+ *  cmd
+ * ------------------------------------------------*/
+volatile int c = 0;
+ 
+volatile int cmd_input = 0;
+const int CMD_FORWARD = 102; //f
+const int CMD_BACKWARD = 98; //b
+const int CMD_BLACK = 110; //n
+
+/* ------------------------------------------------
+ *  pins
+ * ------------------------------------------------*/
+const int PIN_INDICATOR = 13;
+const int PIN_MOTOR_FORWARD = 5;
+const int PIN_MOTOR_BACKWARD = 6;
+const int PIN_MICRO = 2;
+
+/* ------------------------------------------------
+ *  loop
+ * ------------------------------------------------*/
+const int LOOP_DELAY = 100;
+
+/* ------------------------------------------------
+ *  speed
+ * ------------------------------------------------*/
+const int FWD_SPEED = 240;
+const int BWD_SPEED = 240;
+
+volatile boolean running = false;
+volatile boolean cam_dir = true;
+
+volatile int micro_position = 0;
+volatile boolean micro_primed = false;
+
+unsigned long timer = 0;
+
+volatile int cam_count = 0;
+volatile int cam_pos = 0;
+
+void setup () {
+  Serial.begin(9600);
+  Serial.flush();
+  Pins_init();
+  Serial.println("Welcome to intval2.");
+}
+
+void loop () {
+  while (modem.available() > 0 && !running) { 
+    c = modem.read(); 
+    Serial.println(c);
+  }
+  if (Serial.available() > 0 && !running){
+    cmd_input = Serial.read();
+    //Serial.println(cmd_input);
+  }
+  if (cmd_input == 102) {
+    Frame(true);
+  }
+  if (running) {
+    Frame_check();
+  } else {
+      delay(LOOP_DELAY);
+  }
+  cmd_input = 0;
+}
+
+void Pins_init () {
+  pinMode(PIN_MOTOR_FORWARD, OUTPUT);
+  pinMode(PIN_MOTOR_BACKWARD, OUTPUT);
+  pinMode(PIN_MICRO, INPUT);
+  pinMode(PIN_INDICATOR, OUTPUT);
+}
+
+void Frame (boolean dir) {
+  Time_start();
+  cam_dir = dir;
+  if (cam_dir) {
+    analogWrite(PIN_MOTOR_FORWARD, FWD_SPEED);
+  } else {
+    analogWrite(PIN_MOTOR_BACKWARD, BWD_SPEED);
+  }
+  Indicator(true);
+  running = true;
+  micro_primed = false;
+  cmd_input = 0;
+}
+
+void Frame_check () {
+  micro_position = digitalRead(PIN_MICRO);
+  //Serial.println(micro_position);
+  if (micro_position == LOW && micro_primed == false) {
+    micro_primed = true;
+    Serial.println("Frame micro_primed");
+  } else if (micro_position == HIGH && micro_primed == true) {
+    Stop();
+  }
+  delay(1);//smooths out signal
+}
+
+void Stop () {
+  analogWrite(PIN_MOTOR_FORWARD, 0);
+  analogWrite(PIN_MOTOR_BACKWARD, 0);
+  
+  Serial.println("Frame ran");
+  Time_end();
+ 
+  cam_count++;
+  if (cam_dir) {
+    cam_pos++;
+  } else {
+    cam_pos--;
+  }
+  
+  running = false;
+  micro_primed = false;
+  Indicator(false);
+}
+
+void Time_start () {
+  timer = millis();
+}
+
+void Time_end () {
+  timer = millis() - timer;
+  int timer_int = int(timer);
+  Serial.print(timer_int);
+  Serial.println("ms");
+}
+
+void Indicator (boolean state) {
+  if (state) {
+    digitalWrite(PIN_INDICATOR, HIGH);
+  } else {
+    digitalWrite(PIN_INDICATOR, LOW);
+  }
+}