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#include
LiquidCrystal lcd(3, 2, 7, 6, 5, 4); #define SensorPin 0 //pH meter Analog output to Arduino Analog Input 0 #define Offset 0.00 //deviation compensate unsigned long int avgValue; //Store the average value of the sensor feedback int S1; int S2; int S3; int S4; int S5; int S6; void setup() { pinMode(8, INPUT); pinMode(9, INPUT); pinMode(10, INPUT); pinMode(11, INPUT); pinMode(12, INPUT); pinMode(13, INPUT); Serial.begin(9600); Serial.prinOUTPUTtln("Ready"); //Test the serial monitor } void loop() { int buf[10]; //buffer for read analog for (int i = 0; i < 10; i++) //Get 10 sample value from the sensor for smooth the value { buf = analogRead(SensorPin); delay(10); } for (int i = 0; i < 9; i++) //sort the analog from small to large { for (int j = i + 1; j < 10; j++) { if (buf > buf[j]) { int temp = buf; buf = buf[j]; buf[j] = temp; } } } avgValue = 0; for (int i = 2; i < 8; i++) //take the average value of 6 center sample avgValue += buf; float phValue = (float)avgValue * 5.0 / 1024 / 6; //convert the analog into millivolt phValue = 3.5 * phValue + Offset; //convert the millivolt into pH value Serial.print(" pH:"); Serial.print(phValue, 2); Serial.println(" "); digitalWrite(13, HIGH); delay(800); digitalWrite(13, LOW); lcd.setCursor(0, 1); lcd.print("PH:"); lcd.print(phValue, 2); if(digitalRead(9) == LOW) { lcd.setCursor(10, 1); lcd.print("text"); } else { lcd.setCursor(10, 1); lcd.print("meian"); } } 一共6个按键,我该如何用 state将测得的值实现按按键1,进入text(校准界面)并且对当前数据调整 按键23对当前光标位变大变小。 按键45让光标左右移并且使按键23可以调整其他位置大小。6确定(退出调整) |
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