Arduino Thermometer by lm35 sensor. ADC - Analog Digital Converter. Arduino Uno. Tools and copmonents. Projects Circuit. Steps.

1. EENNGG.. MMaahhmmoouudd SSaallhheeeenn

2. Analog-To-Digital Converter
There are two types of signals that carry
information - analog and digital signals .
Analog Signals:
Analog Signals vary in time, and
the variations follow that of the non-electric
signal.
Digital Signals:
Computers can only
perform processing on
digitized signals Digital signals have discrete
levels, and the specified value of the pulse remains
constant until the change in the next digit. There
are two amplitude levels, which are called nodes,
that are based on 1 or 0, true or false, and high or
low

3. ADC Arduino Project :-
1- Materials And Components .
2- Project Circuit .
3- Working Steps .
4- Code Explanations .

4. Materials And Components :-
1- Arduino Uno
microcontroller is used in art and
design as an open source
programmable tool to create
interactive works.
It can drive motors, LEDs, sensors
and other components.
Microcontrollers are small computing systems used for
low power and low memory
ATmega168/328-Arduino Pin
Mapping
Note that this chart is for
the DIP-package chip.
The Arduino Mini is based
upon a smaller physical IC
package that includes two
extra ADC pins, which are
not available in the DIP-
package Arduino implementations.

7. 2- Male-Male Wires
3- Male-Female Wires
We use them To Connect components
with each other
4- 20k Variable Resistance
We use it to control in the LCD's Light
5- Teset Board
6-2x16 LCD Display
Which show us the digital output in the project

8. 7- lm35 Sensor
The LM35 series are precision integrated-circuit
temperature devices with an output voltage
linearly-proportional to the Centigrade
temperature.
The LM35 device has an advantage over linear
temperature sensors calibrated in Kelvin, as the
user is not required to subtract a large constant
voltage from the output to obtain convenient
Centigrade scaling.
The LM35 device does not require any external calibration or
trimming to provide typical accuracies of ±¼°C at room
temperature and ±¾°C over a full −55°C to 150°C temperature
range.
Lower cost is assured by trimming and calibration at the wafer
level. The low-output impedance, linear output, and precise
inherent calibration of the LM35 device makes interfacing to
readout or control circuitry especially easy.

9. Projects Circuit

10. Steps
Encoding
By using arduino ide software

13. Testing
1- Testing Circuit :-

14. 2-Testing Code :-
lcd.begin(16, 2);
lcd.setCursor(0, 0);
lcd.print(" Digital ");
lcd.setCursor(0, 1);
lcd.print(" Thermometer ");
delay(4000);
lcd.print(" Mahmoud Salheen ");
delay(4000);
lcd.clear();
lcd.print(" Under" ) ;
lcd.setCursor(0, 1);
lcd.print(" Supervision ") ;
delay(4000);
lcd.clear();
lcd.print("Eng(Ahmed Kishk)") ;
delay(4000);
lcd.clear();

15. reading = analogRead(tempPin); //read the value from the sensor
tempC = reading * (5.0 / 1023.0) * 100;
tempF = ((tempC * 9) / 5) + 32;
lcd.setCursor(6, 0);
lcd.print(tempC, 1);
lcd.print("'C");
lcd.setCursor(6, 1);
lcd.print(tempF, 1);
lcd.print("'F");
delay(1000);

16. Final