L7912 - VOLTAGE REGULATOR (-12V -1A) ESP32 infrared rays emitted when not

infrared rays emitted when not being reflected back or reflected back but the strength is not big enough

and plug the PH2

output :  5V 1A

The heat sink have profiles which are short enough to fit within standard Raspberry Pi cases

Connector Wire Length : 20 cm

L7912 - VOLTAGE REGULATOR (-12V -1A) ESP32 infrared rays emitted when notIntroduction : L7912CV Ve Voltage Regulator ( 12V 1A) is a three terminal linear voltage regulator IC with a fixed output voltage of 5V which is useful in a wide range of applications. Features : Output Voltage: 12V Maximum Input Voltage: 35V Maximum Output Current: 1A Dropout Voltage: 1. 4V No. of Pins : 3 pins