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Switching Using Transistor - Arduino Project Hub

    https://create.arduino.cc/projecthub/SBR/switching-using-transistor-c9114a
    This project demonstrates the use of transistor as a switch. Switching using Transistor. Code. Switching using Transistor; ... We're showing how to use KY-038 Sound Sensor using Arduino. You can control LED by clap …

Best transistor switch - General Electronics - Arduino Forum

    https://forum.arduino.cc/t/best-transistor-switch/562527
    Other end of the capacitor to your audio. Pin 1 to a 1K resistor to 12V. Then your switched output 0 or 12V appears on pin 1, but with only 20mA sink or 12mA source. If you want more the connect your TIP120 transistor’s base to pin 1. Adjust the pot for the switching point.

Simple NPN Transistor switch control ... - Arduino Project Hub

    https://create.arduino.cc/projecthub/105448/simple-npn-transistor-switch-control-with-cooling-fan-499f90
    The Basic transistor switching with arduino , for arduino Digital 7th Pin is Output if the arduino send logic 1 (HIGH), the mini cooling fan turns ON. If the transistor Base terminal is 0 (LOW), then Fan turns off , for delay and other you can set with help of arduino IDE and arduino uno. And one simple NPN transistor.

Transistor Basics - Arduino Project Hub

    https://create.arduino.cc/projecthub/akarsh98/transistor-basics-bd139-bd140-power-transistor-tutorial-5e112a
    Transistor switches can be used to switch and control lamps, relays, or even motors. When using the bipolar transistor as a switch they must be either “fully-OFF” or “fully-ON”.Transistors that are fully “ON” are said to be in their Saturation region. Transistors that are fully “OFF” are said to be in their Cut-off region.

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