Repair of the KY-013 Arduino sensors

For many Arduino enthusiasts, a KY-013 temperature sensor is one of the first steps into this exciting world of microcontrollers and automation. This simple sensor is very cheap and almost indestructible. Nonetheless, many of those very cheap sensors that can be obtained from Ali Express are incorrectly made.

Here is my story of how I repaired them and made them work for me. Let’s begin.