LED test with two temperature calibration and EEPROM flashing. This thesis project addresses a modern challenge in testing automotive boards under harsh conditions, such as temperatures 40 degrees higher than the ambient environment. The challenge arises from the necessity for companies to evaluate the expected behavior of their products under all possible operating conditions, especially in the automotive sector. To achieve this, Spea, one of the leading companies in testing, was involved in carrying out this challenging project. The device under test (DUT) is an electronic board in which there are mounted two microprocessors, 14 RGB LEDs and other minor components with the aim of lightning on the dashboard of a car.