Step 1: Parts Needed
| Category | Quantity | References | Value |
| Resistors | 2 | R1-R2 | 10K |
| Integrated Circuits | 1 | U1 | LM35 |
| Transistors | 2 | Q1-Q2 | NPN |
| push button | 2 | COLD,HOT | SW-SPST-MOM |
| arduino | 1 | DUINO1 | ARDUINO UNO R3 |
| lamp | 1 | 12v | heating |
| LCD | 1 | LCD1 | 16x2 |
| Motor | 1 | 12v | cooling |
some wires also ;)
Step 2: How to make it
Step 3: Programing Arduino
click here to download arduino program
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