I'm using a 49E hall effect sensor that was part of a sensor kit from china, it is on a small straightfoward PCB. The MCU is a ESP12E (8266) and that is connected to PC via USB.
I used pinouts from images on google.
Pin 1: VCC - connected it to Vin
Pin 2: Gnd - Connected to gnd
Pin 3: Sig - Connected it to A0
Plug in USB to PC. Touch sensor within 2 seconds and it is burning hot! What is wrong here? Bad sensor?