1- First tried with this page (codes are available here):

2- Trying to test the Temperature control with Max6675 Thermocouple, the Arduino codes could be seen here:

The Circuit's schematic is shown below:

The below video contain some Description about this part of the project:

3- With LCD (Codes are Here):

3-1 PID COntrol with Thermocouple Sensor and LCD (Codes Link)

4- With 0.91 Inch OLED (Codes are Here which have too long Delay!!!):

5- LCD & K-type Thermocouple & Pt100 Temperature Sensor (link):

-PT100 Cods made from this question and by The blow Circuit (Search link)

6- LCD & LM35 Temperature Sensor as you can see below (Some problem and Burning the 2 Arduino Uno Cost around 10$ : Question link):

7- LCD, DS18B20 Temperature Sensor as you can see below (Codes are here):

8- LCD, DS18B20 and Thermocouple Temperature Sensor as you can see below (Codes are here):

9- The PCB made by EASYEDA available in here and must imported in easyeda site:

1. Built *the 3D Printer Container for TEC ( Heater and Cooling Parts)

2. Calibrate the temperature Sensor:

   Done and could be at this codes, which could be seen at the below part of main code:

Thanks.