From aec9742030059b5ea7e2d02b5054249b0175ba20 Mon Sep 17 00:00:00 2001
From: 793528 <793528@students.wits.ac.za>
Date: Tue, 17 Jul 2018 11:40:33 +0200
Subject: [PATCH 1/2] beginning arduino code for big easy stepper

---
 Stepper Code/stepper_code/stepper_code.ino | 91 ++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 Stepper Code/stepper_code/stepper_code.ino

diff --git a/Stepper Code/stepper_code/stepper_code.ino b/Stepper Code/stepper_code/stepper_code.ino
new file mode 100644
index 0000000..42c33c3
--- /dev/null
+++ b/Stepper Code/stepper_code/stepper_code.ino	
@@ -0,0 +1,91 @@
+//***********************************
+// Big Easy Stepper code            *
+// Author: Nick Raal                *
+//         : Dane Slattery          *
+//***********************************
+
+
+// Defining each pin
+#define stp 2 //Logic input: trigger motor to move 1 step
+#define dir 3 //Logic Input: direction
+#define ms1 4 //Microstep determines step resolution + excitation mode
+#define ms2 5
+#define ms3 6
+#define en  7 //Logic input: enables FET functionality
+#define slp 8 //Logic input: enter sleep mode
+         
+void setup() {
+  // put your setup code here, to run once:
+  pinMode(stp, OUTPUT);
+  pinMode(dir, OUTPUT);
+  pinMode(ms1, OUTPUT);
+  pinMode(ms2, OUTPUT);
+  pinMode(ms3, OUTPUT);
+  pinMode(en, OUTPUT);
+  pinMode(slp, OUTPUT);
+
+  resetPins(); // set pins to default state
+
+  //Setup serial connection to begin motor
+  Serial.begin(9600);
+  Serial.println("Press 1 for standard forward stepping");
+  Serial.println("Press 2 for sixteenth forward stepping");
+  Serial.println();
+}
+
+void resetPins() {
+  digitalWrite(stp, LOW);
+  digitalWrite(dir, LOW); //Low = Forward
+  digitalWrite(ms1, LOW);
+  digitalWrite(ms2, LOW);
+  digitalWrite(en, HIGH);
+  digitalWrite(slp, HIGH);
+
+}
+
+// Steps the motor forward.
+void StepForward() {
+  digitalWrite(dir, LOW); //set direction to forward
+  for(int x = 1; x < 10; x++){
+    digitalWrite(stp, HIGH);
+    delay(1);
+    digitalWrite(stp, LOW); // set low to trigger again
+    delay(1);
+  }
+}
+
+void SixteenStep(){
+  digitalWrite(dir, LOW);
+  // For Sixteenth step 4W1-2 Phase
+  digitalWrite(ms1, HIGH);
+  digitalWrite(ms2, HIGH);
+  digitalWrite(ms3, HIGH);
+
+  for(int x = 1; x < 100; x++){
+    digitalWrite(stp, HIGH);
+    delay(1);
+    digitalWrite(stp, LOW);
+    delay(1);
+  }
+  
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  
+  while(Serial.available()){
+    char input = Serial.read(); // read what user types
+    digitalWrite(en, LOW); // allow motor to work
+    if(input == '1'){
+      StepForward();
+      
+    } else if(input == '2'){
+      SixteenStep();
+    } else {
+      Serial.println("Invalid Option");
+      
+    }
+    resetPins();
+  }
+  
+}

From 13ffd72c5da6544eec94539c3df0e8bb6129dbe0 Mon Sep 17 00:00:00 2001
From: 793528 <793528@students.wits.ac.za>
Date: Tue, 17 Jul 2018 15:20:12 +0200
Subject: [PATCH 2/2] added actual step for 15deg intervals for 16th mode

---
 Stepper Code/stepper_code/stepper_code.ino | 34 +++++++++++++++-------
 1 file changed, 23 insertions(+), 11 deletions(-)

diff --git a/Stepper Code/stepper_code/stepper_code.ino b/Stepper Code/stepper_code/stepper_code.ino
index 42c33c3..1dc333b 100644
--- a/Stepper Code/stepper_code/stepper_code.ino	
+++ b/Stepper Code/stepper_code/stepper_code.ino	
@@ -2,6 +2,7 @@
 // Big Easy Stepper code            *
 // Author: Nick Raal                *
 //         : Dane Slattery          *
+// Date: 17/07/2018                 *
 //***********************************
 
 
@@ -28,7 +29,6 @@ void setup() {
 
   //Setup serial connection to begin motor
   Serial.begin(9600);
-  Serial.println("Press 1 for standard forward stepping");
   Serial.println("Press 2 for sixteenth forward stepping");
   Serial.println();
 }
@@ -42,30 +42,44 @@ void resetPins() {
   digitalWrite(slp, HIGH);
 
 }
-
+/*
 // Steps the motor forward.
 void StepForward() {
+  Serial.println("User input 1");
+  Serial.println();
   digitalWrite(dir, LOW); //set direction to forward
-  for(int x = 1; x < 10; x++){
+  for(int i = 1; i < 24; i++){
+   for(int x = 1; x < 9; x++){
     digitalWrite(stp, HIGH);
-    delay(1);
+    delay(10);
     digitalWrite(stp, LOW); // set low to trigger again
-    delay(1);
+    delay(10);
   }
+  delay(100);
+ }
+ 
 }
+*/
 
+// using the H-H-H for sixteenth steps
 void SixteenStep(){
+  Serial.println("User input = 2");
+  Serial.println();
   digitalWrite(dir, LOW);
   // For Sixteenth step 4W1-2 Phase
   digitalWrite(ms1, HIGH);
   digitalWrite(ms2, HIGH);
   digitalWrite(ms3, HIGH);
 
-  for(int x = 1; x < 100; x++){
+ 
+  for(int x = 0; x < 24; x++){ // 24 is number or steps to go 360 degrees
+    for(int i = 0; i < 134; i++){   // 134 moves the stepper 15 degrees per step
     digitalWrite(stp, HIGH);
-    delay(1);
+    delay(1); 
     digitalWrite(stp, LOW);
     delay(1);
+    }
+    delay(1000); // increase these delays to hold the motor in place before shifting to next step
   }
   
 }
@@ -76,11 +90,9 @@ void loop() {
   while(Serial.available()){
     char input = Serial.read(); // read what user types
     digitalWrite(en, LOW); // allow motor to work
-    if(input == '1'){
-      StepForward();
-      
-    } else if(input == '2'){
+    if(input == '2'){
       SixteenStep();
+      digitalWrite(en, LOW);
     } else {
       Serial.println("Invalid Option");