Some new stuff
  1. Arduino Park Control
  2. Arduino USB2serial programming the bare bone
  3. Arduino Projects Videos added
  4. Arduino Xbee projects
  5. Arduino dB Meter 
  6. Trying to get the IOIO going. 
  7. IOIO is going....bluetooth
  8. Attiny 2313 bluetooth bee RC car
  9. Compass and temperature added
  10. AVR programmer
  11. USB2Serial and Ethernet POE
  12. Arduino LPG Sensor
  13. Program the Arduino Mini 05
  14. Lipo Rider Pro in action
  15. EZ Robot Builder kit arrived 10 Nov 2012
  16. Arduino VA Meter!
  17. 05 Nov 2012 Project Sentry Gun.
  18. Attiny85 PIR Sensor 10 Dec 2012 
  19. 0-30VDC3A and 2-28VDC10A bench PSU's
  20. 19 Dec 2012 Arduino Voltmeter LCD
  21. 29 Dec 2012 Arduino Tachometer&Speedometer LCD
  22. 03 Jan 2013 Arduino AC Phase Control. 
  23. 18 Jan 2013 Arduino Distance Meter
  24. 22 Jan 2013 Arduino Digital Clock and Date
  25. 31 Jan 2013 Arduino Digital Clock and Date 8x2 LCD
  26. Feb 2013 LCD and Backpack
  27. Feb 2013 7 Segment Serial Clock Sparkfun. Distance Sensor with "newping" library
  28. Feb 2013 Lelo Remote
  29. 01/03/2013 Arduino Adafruit 7 Seg Digital Clock with RTC and backpack 
  30. Arduino Frequency Meter 26/03/2013
  31. Another RC  Car controlled by Arduino 06/04/2013
  32. My quadcopter project update 25 April 2013
  33. My Aqua Quad Copter Flying 26 April 2013enlightened
  34. Another monster RC truck;strong one! 11July2013cool
  35. X-Frame Quad Copter 31 July 2013cool
  36. Arduino GSM Sheild added.28/8/2013
  37. 1.8inch TFT screen 13/09/2013cool
  38. 04/11/2014 added PID Soldering Iron Control
  39. Added bluetooth servo control 04/11/2014
  40. ESP8266 first try.16/03/2015
  41. Arduino Uno Quadcopter 19 May 2015
  42. IOT WemosD1 Amp Meter

 

 



26/.3/2013

Arduino LM35 Temp Sens LCD 16 by 2 Min and Max Display with adafruit backpack

Notice carefully the LM35 temp sensor on mounted on small piece of veroboard acting as a breakout board.

Remember the correct libraries regarding the adafruit backpack needed.

I changed this code a lot from the original, firstly LCD text and display and to accommodate Adafruit backpack. 

Code:

#include "Wire.h"
#include "LiquidCrystal.h"
// Connect via i2c, DAT=A4, CLK=A5 
LiquidCrystal lcd(0);
int pin = 0; // analog pin A0
int tempc = 0,tempf=0; // temperature variables
int samples[8]; // variables to make a better precision
int maxi = -100,mini = 100; // to start max/min temperature
int i;

void setup()
{
  Serial.begin(9600); // start serial communication
  lcd.begin(16, 2);                   // set the lcd dimension
  lcd.clear();                        // LCD screen clear
  lcd.setCursor(0,0);                 // set lcd.setCursor (column,row) 
  lcd.print("LM35 Temp Sens");
  lcd.setCursor(0,1);
  delay(1000);
  lcd.print("By Chemcool");  
  delay(1000);   // delay for 3000ms
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Minimum&Maximum"); 
  delay(1000);
  lcd.setCursor(0,1);
  lcd.print("Temp Displays");
  delay(1000);  
  lcd.clear();
}

void loop()
{
for(i = 0;i<=7;i++){ // gets 8 samples of temperature
  samples[i] = ( 5.0 * analogRead(pin) * 100.0) / 1024.0;
  tempc = tempc + samples[i];
  delay(500);
}
tempc = tempc/8.0; // better precision
//tempf = (tempc * 9)/ 5 + 32; // converts to fahrenheit
if(tempc > maxi) {maxi = tempc;} // set max temperature
if(tempc < mini) {mini = tempc;} // set min temperature
Serial.print(tempc,DEC);
lcd.setCursor(6,0);
lcd.print(tempc,DEC);
Serial.print(" Celsius  ");
lcd.print(" oC");
Serial.print(maxi,DEC);
lcd.setCursor(0,1);
lcd.print(maxi,DEC);
Serial.print(" Max, ");
lcd.print(" Max ");
Serial.print(mini,DEC);
lcd.setCursor(10,1);
lcd.print(mini,DEC);
Serial.println(" Min");
lcd.print(" Min ");
tempc = 0;
delay(500); // delay before loop
}

 

 

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