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//Locking, Automatic Chicken Coop Door //By Seth Johnson Land To House llc 2016 //This section is for initializing things: // Initialize the motor values to the pins 8, 7, 9. //Pins 7 and 8 send high or low to the motor controller. //pin 10 enables motor one on the motor controller. int enA = 9; int in1 = 7; int in2 = 8; //Initialize "lightSensor" as the value from pin A0 and read in the value. This is the photoresistor. int lightSensor = analogRead(A0); //The lightVal will hold the value of lightsensor in this variable int lightVal = 0; //These are the pins for the reed switches // reed1Pin is the lower switch on the door. This is digital pin 5 int reed1Pin = 5; //reed2Pin is the top switch on the door. This is digital pin 6 int reed2Pin = 6; //These are the variables that hold the state of the reed switches int switchState1 = 0; int switchState2 = 0; //This only runs once. void setup() { // set the motor control pins as outputs. This means pins 7, 8, 9 are outputs to the l298n motor controller. pinMode(enA, OUTPUT); pinMode(in1, OUTPUT); pinMode(in2, OUTPUT); //read the state of switch 1 (the bottom one) and place it in switchState1 switchState1 = digitalRead(reed1Pin); //read the state of switch 2 (the top one) and place it in switchState2 switchState2 = digitalRead(reed2Pin); //this is important to make sure that the door starts up when the program gains power. //if switchState2 is not high then go to the while statement if (switchState2 != HIGH) { // this function will run the motor down as long as switch 1 has not been triggered while (switchState2 != HIGH) { // turn on motor and set speed to 255 analogWrite(enA, 255); digitalWrite(in1, LOW); digitalWrite(in2, HIGH); //read the state of the switch again to make sure that it has not been triggered switchState1 = digitalRead(reed1Pin); //read the state of switch 2 (the top one) and place it in switchState2 switchState2 = digitalRead(reed2Pin); } // once switchstate2 has been triggered turn off the motor digitalWrite(in1, LOW); digitalWrite(in2, LOW); } } //this runs over and over void loop() { //read the light sensor and place it in lightval lightVal = analogRead(lightSensor); //read the state of switch 1 (the bottom one) and place it in switchState1 switchState1 = digitalRead(reed1Pin); //read the state of switch 2 (the top one) and place it in switchState2 switchState2 = digitalRead(reed2Pin); //the lightSensor is read and placed into lightVal. if its greater than 200 and switchState2 is //equal to high then go to the motor down code. But if the light is less than 200 and the switchstate1 //is equal to high then call motor up code if (switchState2 = HIGH && lightVal > 1000) { delay(2000); motordown(); } else if (switchState1 = HIGH && lightVal < 1000) { delay(2000); motorup(); } } void motordown() { //Read the state of switch 1 (the Bottom one) and place it in switchState1 switchState1 = digitalRead(reed1Pin); //read the state of switch 2 (the top one) and place it in switchState2 switchState2 = digitalRead(reed2Pin); //If switchState2 is high and the light is dark then continue if (switchState2 = HIGH && lightVal > 1000) //wait 2 seconds delay(2000); //read the state of switch 1 (the bottom one) and place it in switchState1 switchState1 = digitalRead(reed1Pin); //read the state of switch 2 (the top one) and place it in switchState2 switchState2 = digitalRead(reed2Pin); while (switchState1 != HIGH) { // turn on motor and set speed to 255 analogWrite(enA, 255); digitalWrite(in1, HIGH); digitalWrite(in2, LOW); //read the state of switch 2 (the top one) and place it in switchState2 switchState1 = digitalRead(reed1Pin); //read the state of switch 2 (the top one) and place it in switchState2 switchState2 = digitalRead(reed2Pin); } //wait 1 second before turning off the motor to let the locks engage at the bottom delay(2000); // now turn off motor digitalWrite(in1, LOW); digitalWrite(in2, LOW); } void motorup() { //read the state of switch 1 (the bottom one) and place it in switchState2 switchState1 = digitalRead(reed1Pin); //read the state of switch 2 (the top one) and place it in switchState2 switchState2 = digitalRead(reed2Pin); //if switchState1 is high and the light is bright then continue if (switchState1 = HIGH && lightVal < 1000) { //read the state of switch 1 (the bottom one) and place it in switchState1 switchState1 = digitalRead(reed1Pin); //read the state of switch 2 (the top one) and place it in switchState2 switchState2 = digitalRead(reed2Pin); //delay 2 seconds delay(2000); //while switchState2 is not high turn on the motor up while (switchState2 != HIGH) { // this function will run the motor as long as switch 2 has not been triggered // turn on motor and set speed to 255 analogWrite(enA, 255); digitalWrite(in1, LOW); digitalWrite(in2, HIGH); //read the state of switch 1 (the bottom one) and place it in switchState2 switchState1 = digitalRead(reed1Pin); //read the state of switch 2 (the top one) and place it in switchState2 switchState2 = digitalRead(reed2Pin); } // now turn off motor digitalWrite(in1, LOW); digitalWrite(in2, LOW); } } |
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