Why does the Circpump toggle the output pin when checked
`Preformatted text
`/*
Use a 16x2 LCD display and a DS18B20.
* DS18B20 to pin 8
* Motor pin on pin 6
* Heater on pin 7
by John R Tucker
modified 02 Feb 2022
*/
// include the library code:
#include <LiquidCrystal.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS 8
#define Heater 7
#define CircPump 6
// Setup a oneWire instance to communicate
OneWire oneWire(ONE_WIRE_BUS);
// Pass our oneWire reference to Dallas Temperature.
DallasTemperature sensors(&oneWire);
// arrays to hold device address
DeviceAddress insideThermometer;
// initialize the library by associating any needed LCD pin
// with the arduino pin number it is connected to
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
int Pump = 0;
void setup() {
// set up the LCD's number of columns and rows:
lcd.begin(16, 2);
// Print a message to the LCD.
lcd.setCursor(0, 0);
lcd.print(" TEMP:");
lcd.setCursor(0, 1);
lcd.print("TARGET:");
// Start up the library
sensors.begin();
sensors.setResolution(insideThermometer, 10);
// Set up other stuff
pinMode(CircPump, OUTPUT);
digitalWrite(CircPump, LOW);
pinMode(Heater, OUTPUT);
digitalWrite(Heater, LOW);
}
void loop() {
lcd.setCursor(8, 0);
sensors.requestTemperatures();
float tempF = sensors.getTempCByIndex(0) * 1.8 + 32;
lcd.print(tempF);
if (tempF < 80) {
digitalWrite(Heater, HIGH);
digitalWrite(CircPump, HIGH);
}
if (tempF >= 80) {
digitalWrite(Heater, LOW);
digitalWrite(CircPump, LOW);
Pump = 0;
}
// Keep Circulation motor on for 15 sec extra
if (Pump = 25) {
digitalWrite(CircPump, LOW);
}
// The Above If causes the output to toggle on/Off`Preformatted text`
Pump++;
lcd.setCursor(9, 1);
lcd.print(Pump);
delay(100);
}
