Hi all!
New here and i'm starting my first "real world" project. I have setup a counter using a 7 seg LCD. This can count up to 9 and back down to 0 if buttons, or in this case a relay is fired (don't worry about this bit its just a button for the moment)
What i need is for another Pin (11, as this is the only one i have left) to go HIGH for 3 seconds if the counter reads 0-9. If the counter is over 9 for the pin not to go HIGH.
Just to clarify. The Pin will go High on each count unless the counter reaches 9, this also needs to work backwards was well for the down count. The main code i am using is from a tutorial i followed, which i need to make changes to. its below.
//Code wtiren by YAHAV HADAD
// 2016
//All Rights Reserved ©
//ENJOY!!
//Initialize the 7 segment pins
int A = 3;
int B = 2;
int C = 4;
int D = 5;
int DP = 7;
int E = 6;
int F = 8;
int G = 9;
//Initialize the push buttons pins, push buttons states, and the counter
int switchUpPin = 13;
int switchDownPin = 12;
int counter = 0;
int buttonUpState = 0;
int lastButtonUpState = 0;
int buttonDownState = 0;
int lastButtonDownState = 0;
void setup()
{
Serial.begin(9600);
pinMode(A, OUTPUT);
pinMode(B, OUTPUT);
pinMode(C, OUTPUT);
pinMode(D, OUTPUT);
pinMode(E, OUTPUT);
pinMode(F, OUTPUT);
pinMode(G, OUTPUT);
pinMode(DP, OUTPUT);
//Start with the deceimal point off
digitalWrite(DP ,HIGH);
}
void loop()
{
//Getting the reads from the buttons
buttonUpState = digitalRead(switchUpPin);
buttonDownState = digitalRead(switchDownPin);
//Detecting button press and getting the button status
//Do this for the button up
if (buttonUpState != lastButtonUpState)
{
if (buttonUpState == HIGH)
{
//Reset the counter to -1
if(counter == 9)
{
counter = -1;
}
//Increase the counter by 1
counter++;
//Print the counter to the console and calling the function
Serial.println(counter);
changeNumber(counter);
//Delaying by 250 ms
delay(250);
}
else
{
Serial.println("OFF");
}
//Delay to avoid button bouncing
delay(1000);
}
//Do this for the button down
if (buttonDownState != lastButtonDownState)
{
if (buttonDownState == HIGH)
{
//Set the counter to 10
if(counter == 0)
{
counter = 10;
}
//Decreases the counter by 1
counter--;
////Print the counter to the console and calling the function
Serial.println(counter);
changeNumber(counter);
//Delaying by 250 ms
delay(250);
}
else
{
Serial.println("OFF");
}
//Delay to avoid button bouncing
delay(1000);
}
//Calling the function changeNumber with the arg counter
changeNumber(counter);
}
//The function to display the numbers
void changeNumber(int buttonPress)
{
switch (buttonPress)
{
//number 0
case 0:
digitalWrite(A, LOW);
digitalWrite(B, LOW);
digitalWrite(C, LOW);
digitalWrite(D, LOW);
digitalWrite(E, LOW);
digitalWrite(F, LOW);
digitalWrite(G, HIGH);
break;
//number 1
case 1:
digitalWrite(A, HIGH);
digitalWrite(B, LOW);
digitalWrite(C, LOW);
digitalWrite(D, HIGH);
digitalWrite(E, HIGH);
digitalWrite(F, HIGH);
digitalWrite(G, HIGH);
break;
//number 2
case 2:
digitalWrite(A, LOW);
digitalWrite(B, LOW);
digitalWrite(C, HIGH);
digitalWrite(D, LOW);
digitalWrite(E, LOW);
digitalWrite(F, HIGH);
digitalWrite(G, LOW);
break;
//number 3
case 3:
digitalWrite(A, LOW);
digitalWrite(B, LOW);
digitalWrite(C, LOW);
digitalWrite(D, LOW);
digitalWrite(E, HIGH);
digitalWrite(F, HIGH);
digitalWrite(G, LOW);
break;
//number 4
case 4:
digitalWrite(A, HIGH);
digitalWrite(B, LOW);
digitalWrite(C, LOW);
digitalWrite(D, HIGH);
digitalWrite(E, HIGH);
digitalWrite(F, LOW);
digitalWrite(G, LOW);
break;
//number 5
case 5:
digitalWrite(A, LOW);
digitalWrite(B, HIGH);
digitalWrite(C, LOW);
digitalWrite(D, LOW);
digitalWrite(E, HIGH);
digitalWrite(F, LOW);
digitalWrite(G, LOW);
break;
//number 6
case 6:
digitalWrite(A, LOW);
digitalWrite(B, HIGH);
digitalWrite(C, LOW);
digitalWrite(D, LOW);
digitalWrite(E, LOW);
digitalWrite(F, LOW);
digitalWrite(G, LOW);
break;
//number 7
case 7:
digitalWrite(A, LOW);
digitalWrite(B, LOW);
digitalWrite(C, LOW);
digitalWrite(D, HIGH);
digitalWrite(E, HIGH);
digitalWrite(F, HIGH);
digitalWrite(G, HIGH);
break;
//number 8
case 8:
digitalWrite(A, LOW);
digitalWrite(B, LOW);
digitalWrite(C, LOW);
digitalWrite(D, LOW);
digitalWrite(E, LOW);
digitalWrite(F, LOW);
digitalWrite(G, LOW);
break;
//number 9
case 9:
digitalWrite(A, LOW);
digitalWrite(B, LOW);
digitalWrite(C, LOW);
digitalWrite(D, HIGH);
digitalWrite(E, HIGH);
digitalWrite(F, LOW);
digitalWrite(G, LOW);
break;
}
}
