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TER1-MAX6675: Thermostat for sensor Temp. module MAX6675 (-20,0/999,9 Cels.) with 2 outputs (heating + cooling)

connections (click to enlarge)

Use accessories:  
DisplayTube TM1637 4digit
RelayShield1-4Rel
PushButtons
7Segment TM1637 display: (link) 1--2--3
MAX6675 module : 1 - 2 - 3
RelayModule 2way: (link) 1--2--3
Push Button: (link) 1--2--3
 
FREE HexCode! For price of ArduinoIDE soure code please contact us.
Download the HEX codes below, unpack and upload to the proper Arduino board (Use a free net tool for example XLoader)
1. ATmega328-16MHz (MINI,NANO,UNO...): HexCode-m328 - Free Final!
2. AtMega2560 (Mega(ATMEGA2560)........): HexCode-m2560 - Free Final!
 

User guide manual:
After applying the power (or a reset), the display shows (----) for about 3 sec. During that time:
Do action1: DEFAULT settings: Press both buttons (PB1+PB2) and when the screen turns off release. Be sure to do it (only once) after uploading the hex code in Arduino!
Do action2: PRESET settings: Press the PB1 button and when the screen turns off release:
P10: Display brightness intensity (0-7)
P12: The lower limit for settings value SV1 (range -30/+999 default=-20.0) - Defining settings range limits
P14: The upper limit for settings value SV1 (range -30/+999 default=999.9) - Defining settings range limits
P16: not in use yet
Additional preset values have no function in this project!
Settings (in working mode):
SET values: Press the PB1 or PB2 button (until the display goes off then release). The set values that can be changed on the buttons (PB1/PB2=+/-) are displayed. After 2 seconds of inactivity, the value on the display is stored.
SET Temperature (SV1): Press the PB1 button (until the display goes off then release).
SET Hysteresis (SV2): Press the PB2 button (until the display goes off then release).
Status of outputs:
Out1: If the measuring temperature is equal to or higher than the set value (SV1) then: Out1=0. When the temperature drops below the set temperature for the set hysteresis value (SV2) then: Out1=1 - (eg. heating function).
Out2: Inverse of Out1 (eg. cooling function).
Rest of outputs are not in use.