wood fired pizza oven

Projects General Guidance
1

I'd sure appreciate some initial guidance on creating an Arduino based unit to monitor 4 different temperatures of a wood fired pizza oven As well I'd like to be able to monitor the temperatures in real time on an LCD screen. I've been able to connect 4 thermocouples to my Uno R3 and read the temps on my PC, but when I try to connect an LCD I run out of digital pins. HMMM! Where would be a good starting point in sorting this out?

2

Hi,

Can you please post a copy of your circuit, in CAD or a picture of a hand drawn circuit in jpg, png or pdf?

Can you please post a copy of your sketch, using code tags?
Please use code tags.. See section 7 http://forum.arduino.cc/index.php/topic,148850.0.html

We can then offer some advice.

Thanks....Tom... :slight_smile:

3

Remember analog pins can also be used as digital pins. Although they have digital numbers, it is best to use the "A" names for them:

const int LCDEnablePin = A0;
...
digitalWrite(LCDEnablePin, HIGH);
4

4 analog inputs
usb serial?
leaves a lot of free pins !

Serial connection uses fewer pins.
need more data about how you are using pins

5

You could also use a I2C interface for the LCD.

Weedpharma

6

I'm using the wiring configuration that is suggested at the Adafruit TC Tutorial (Arduino Code | MAX31855 Thermocouple | Adafruit Learning System). I'm using a Max31855 Braekout Board and the DO is connected to DO3, CS to DO4 and CLK to DO5. To connect two TC's (Breakout boards) I've edited the sketch to accommodate a second TC.

#include <SPI.h>
#include "Adafruit_MAX31855.h"

#define DO   3
#define CS1  4
#define CS2  6
#define CLK  5
Adafruit_MAX31855 thermocouple1(CLK, CS1, DO);
Adafruit_MAX31855 thermocouple2(CLK, CS2, DO);

I did not realize the Analog pins could be used as digital pins. That alone may sole my dilemna.

Thanks for suggestions. It's reassuring to know that this at least possible.

7

Hi

Can you please post a copy of your circuit, in CAD or a picture of a hand drawn circuit in jpg, png or pdf?

Can you please post a complete copy of your sketch, using code tags?
Please use code tags.. See section 7 http://forum.arduino.cc/index.php/topic,148850.0.html

Tom... :slight_smile:

8

If you are searching for a Wood Fired Pizza Ovens, you should check "ilFornino" Pizza Ovens.