Wire cutter Here is the arduino code //------------------------------- librarys ---------------------------------- #include #include //------------------------------- lcd ---------------------------------- LiquidCrystal lcd(12, 11, 2, 3, 4, 5); //------------------------------- stepper ---------------------------------- #define stepPin 7 #define dirPin 8 //------------------------------- servo ---------------------------------- Servo snippers; #define servo 10 #define openAngle 180 #define closedAngle 0 //------------------------------- input ---------------------------------- #define leftButton 14 #define rightButton 9 #define upButton 15 #define downButton 6 //------------------------------- user settings ---------------------------------- unsigned int wireLength = 0; unsigned int wireQuantity = 0; //------------------------------- system settings ---------------------------------- int state = 0; int incrementSpeed = 1; int previousWireLength = 0; int previousWireQuantity = 0; float mmPerStep = 0.18096; void setup() { Serial.begin(9600); lcd.begin(16, 2); //LCD columns and rows pinMode(upButton, INPUT_PULLUP); pinMode(downButton, INPUT_PULLUP); pinMode(leftButton, INPUT_PULLUP); pinMode(rightButton, INPUT_PULLUP); pinMode(stepPin,OUTPUT); pinMode(dirPin,OUTPUT); snippers.attach(servo); snippers.write(openAngle); delay(1000); } void loop() { if (!digitalRead(rightButton)){ if(state == 5){ state = 0; } else{ state += 1; } delay(200); lcd.clear(); } if (!digitalRead(leftButton) && state > 0 && state "); delay(100); } void chooseWireLength(){ wireLength = changeValue(wireLength); //clear LCD if required if(previousWireLength != wireLength){ lcd.clear(); previousWireLength = wireLength; } //Display information on LCD lcd.setCursor(0, 0); lcd.print("LENGTH:" + (String)wireLength + "mm"); displayNavigation(); } void chooseWireQuantity(){ wireQuantity = changeValue(wireQuantity); //clear LCD if required if(previousWireQuantity != wireQuantity){ lcd.clear(); previousWireQuantity = wireQuantity; } //Display information on LCD lcd.setCursor(0, 0); lcd.print("QUANTITY:" + (String)wireQuantity); displayNavigation(); } void confirm(){ lcd.setCursor(0, 0); lcd.print((String)wireLength + "mm x " + (String)wireQuantity + "pcs"); lcd.setCursor(0, 1); lcd.print(""); delay(100); } void currentlyCutting(){ lcd.setCursor(0, 0); lcd.print((String)0 + "/" + (String)wireQuantity); lcd.setCursor(0, 1); lcd.print("???s"); int stepsToTake = (int)wireLength/mmPerStep; for(int i = 0; i "); delay(100); } int changeValue(int currentValue){ if (!digitalRead(upButton)) { delay(100); currentValue += incrementSpeed; } if (!digitalRead(downButton)) { if(currentValue - incrementSpeed >= 0){ delay(100); currentValue -= incrementSpeed; } else{ currentValue = 0; } } if (!digitalRead(downButton) && !digitalRead(upButton)){ incrementSpeed = 1; } return currentValue; } void displayNavigation(){ lcd.setCursor(0, 1); lcd.print(""); delay(100); }