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Transistor: A transistor is a device that regulates current or voltage flow and acts as a switch or gate for electronic signals
depending on the specific model
Pin 2 of PORTA
A voltage or current applied to one pair of the transistor's terminals controls the current through another pair of terminals
It can be directly connected to the 5v & GND pins of the Raspberry Pi and it will run whenever the Pi is turned on
12V 2 channel relay board (693) Camera Raspberry Pi Transistor: A transistor is a2 CH 12V Relay Board This 2 Road Channel Relay Module (with light coupling) 12V module meets the safety standard as control areas and load areas have the isolation groove. It is important that the microcontroller share ground with the relay board along with other control signals else it will not able to control the relay. Very useful project for applications like Micro Controller based projects, Remote controllers, Lamp on Off, and any circuits which
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