safety

blinktest_ino/blinktest_ino.ino

@@ -0,0 +1,13 @@
+#define LED 13
+
+void setup() {
+  pinMode(LED, OUTPUT); 
+}
+
+void loop() {
+  digitalWrite(LED, HIGH);
+  delay(1000);
+  digitalWrite(LED, LOW);
+  delay(1000); 
+}  
+

shiftregister_test/shiftregister_test.ino

@@ -0,0 +1,76 @@
+int SER_Pin = 13;   //pin 14 on the 75HC595
+int RCLK_Pin = 12;  //pin 12 on the 75HC595
+int SRCLK_Pin = 8; //pin 11 on the 75HC595
+
+//How many of the shift registers - change this
+#define number_of_74hc595s 2
+
+//do not touch
+#define numOfRegisterPins number_of_74hc595s * 8
+
+boolean registers[numOfRegisterPins];
+
+void setup(){
+  pinMode(SER_Pin, OUTPUT);
+  pinMode(RCLK_Pin, OUTPUT);
+  pinMode(SRCLK_Pin, OUTPUT);
+
+
+  //reset all register pins
+  clearRegisters();
+  writeRegisters();
+}               
+
+
+//set all register pins to LOW
+void clearRegisters(){
+  for(int i = numOfRegisterPins - 1; i >=  0; i--){
+     registers[i] = LOW;
+  }
+} 
+
+
+//Set and display registers
+//Only call AFTER all values are set how you would like (slow otherwise)
+void writeRegisters(){
+
+  digitalWrite(RCLK_Pin, LOW);
+
+  for(int i = numOfRegisterPins - 1; i >=  0; i--){
+    digitalWrite(SRCLK_Pin, LOW);
+
+    int val = registers[i];
+    val = i%2;
+
+    digitalWrite(SER_Pin, val);
+    digitalWrite(SRCLK_Pin, HIGH);
+
+  }
+  digitalWrite(RCLK_Pin, HIGH);
+
+
+}
+
+//set an individual pin HIGH or LOW
+void setRegisterPin(int index, int value){
+  registers[index] = value;
+}
+
+
+void loop(){
+
+  setRegisterPin(0, HIGH);
+  setRegisterPin(1, HIGH);
+  setRegisterPin(2, LOW);
+  setRegisterPin(3, HIGH);
+  setRegisterPin(4, HIGH);
+  setRegisterPin(5, LOW);
+  setRegisterPin(6, HIGH);
+  setRegisterPin(7, LOW);
+
+
+
+  writeRegisters();  //MUST BE CALLED TO DISPLAY CHANGES
+  writeRegisters();
+  //Only call once after the values are set how you need.
+}