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Waterniveaumeter.ino
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Waterniveaumeter.ino
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// ---------------------------------------------------------------------------
// Watertank niveau meting Scouting BvH
// ---------------------------------------------------------------------------
#include <avr/wdt.h>
#include <NewPing.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#if defined(ARDUINO) && ARDUINO >= 100
#define printByte(args) write(args);
#else
#define printByte(args) print(args,BYTE);
#endif
LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD address to 0x27 for a 16 chars and 2 line display
uint8_t blok[8] = {0xff,0xff,0xff,0xff,0xff,0xff,0xff};
#define TRIGGER_PIN 12 // Arduino pin tied to trigger pin on the ultrasonic sensor.
#define ECHO_PIN 11 // Arduino pin tied to echo pin on the ultrasonic sensor.
#define MAX_DISTANCE 120 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm.
NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance.
int afstandcm = 0;
unsigned int liters = 0;
int fracties = 0;
byte meetfout = 0;
#define INHOUDTANK 1000
#define AFSTANDVOL 10
void setup() {
lcd.createChar(1, blok);
wdt_enable(WDTO_4S);
Serial.begin(115200); // Open serial monitor at 115200 baud to see ping results.
lcd.init();
lcd.backlight();
lcd.setCursor(0,0);
lcd.print("Scouting BvH");
lcd.setCursor(0,1);
lcd.print("WaterNiveau V1.0");
delay(2000);
lcd.clear();
}
void loop() {
wdt_reset();
InhoudMeten();
lcd.setCursor(0,0);
if(meetfout < 11){
lcd.print("Inhoud: ");lcd.print(" ");
lcd.setCursor(8,0);
lcd.print(liters);lcd.print("L");
lcd.setCursor(0,1);
lcd.print("[");lcd.setCursor(15,1);lcd.print("]");
lcd.setCursor(1,1);
for(int x = 1; x <= fracties; x++){
lcd.printByte(1);
}
lcd.setCursor(fracties+1,1);
for(int x = 1; x <= 14-fracties; x++){
lcd.print(" ");
}
}else{
lcd.clear();
lcd.print("Storing...");
}
}
void InhoudMeten(){
unsigned int uS = sonar.ping_median(20); // Send ping, get ping time in microseconds (uS).
if(sonar.convert_cm(uS) == 8 || sonar.convert_cm(uS) == 0){
afstandcm = afstandcm;
meetfout++;
}else{
afstandcm = sonar.convert_cm(uS);
meetfout = 0;
}
liters = INHOUDTANK - ((afstandcm - AFSTANDVOL) * 10);
fracties = liters/72;
if(fracties > 14)fracties = 14;
Serial.print("Ping: ");Serial.print(afstandcm);Serial.println("cm");
Serial.print("Inhoud: ");Serial.print(liters);Serial.println("L");
}