Hi. I've been trying to connect this hall effect sensor to my ESP32 for a while, but the sensor doesn't turn on. The sensor's D0 is connected to the ESP's GPIO15 pin, the VCC pin is connected to the 3.3V pin, and the ground is connected is connected to the ground pin. Please help! Here is the sensor:
Are all three pins on the Hall effect sensor soldered to the PCB? It looks like they might not be in the picture.
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Okay the back side looks way better than the front. 
I'm going to assume that one of those LEDs on the module is a power indicator and the other is a "sensor activated" indicator. If you just apply power to the module, does the power LED light up? And if you put a magnet near the 3144 (trying both poles), does the other LED light up?
Yes, and yes. I realized now that the mistake was actually in the quality of the breadboard I was using. But now I connected the sensor directly to the ESP and now the sensor is working!
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