• Gathering needed parts

    Anthony A. • 01/26/2015 at 02:29 • 0 comments

    So I realized I need to post more project logs if I want to stay motivated to finish this. Here it is!

    I plan on getting an Arudiuno nano (really small with all the functionality of an UNO!!) and then designing a case to hold the LCD screen on the outside with the nano inside connecting it all together, then sending a cable out with the sensor going into the tank, eliminating the possibility of damage to the actual assembly.

    Until I acquire a nano the project can't progress because I need the measurements to design the case.

    In the mean time here is a layout of the original setup with the code! (developed with Fritzing)

    The Code: 

    #include <LiquidCrystal.h>  //Include LCD library
#include "DHT.h"            //Include Library for DHT sensors
#define DHTPIN 2            //defines reader pin for the sensor as Arduino pin 2
#define DHTTYPE DHT11       //set which DHT sensor is being used
DHT  dht(DHTPIN, DHTTYPE);

// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);

void setup() {
  Serial.begin(9600);
  dht.begin();
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);
  // Print a message to the LCD.
  lcd.print("Chuck's tank!");
}

void loop() {
   delay(1000);            //set rate for screen refresh can't be lower than 1000ms
   float H = dht.readHumidity();    
   float f = dht.readTemperature(true);
   lcd.setCursor(0, 1);
   lcd.print("     %");
   lcd.setCursor(0, 1);
   lcd.print(H);
   lcd.setCursor(8, 1);
   lcd.print("     deg");
   lcd.setCursor(8, 1);
   lcd.print(f);
}
    Within the quotes in the first sets of lcd.print are four spaces allowing the second print to fully display info without overlapping

    You will need to download a library from: https://github.com/adafruit/DHT-sensor-library and import it into your arduino library, I believe there are instructions on the download link.

    If you have any questions/suggestions post in the comments below or send me a DM!!