![Switching a cooling fan on and off through NPN transistor connected to Arduino - General Electronics - Arduino Forum Switching a cooling fan on and off through NPN transistor connected to Arduino - General Electronics - Arduino Forum](https://europe1.discourse-cdn.com/arduino/optimized/4X/0/3/4/0341a076824ab1f7b9e57aa3b62643ea14e2828a_2_1024x808.png)
Switching a cooling fan on and off through NPN transistor connected to Arduino - General Electronics - Arduino Forum
![Use NPN transistor as switch with 5V signal and 8V on collector - Motors, Mechanics, Power and CNC - Arduino Forum Use NPN transistor as switch with 5V signal and 8V on collector - Motors, Mechanics, Power and CNC - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/7/b/9/7b9af865ef980b90890a91f0541a92ea26c4063e.png)
Use NPN transistor as switch with 5V signal and 8V on collector - Motors, Mechanics, Power and CNC - Arduino Forum
![12V Motor Control With 5V Arduino and NPN Transistor As Speed Control Switch : 4 Steps - Instructables 12V Motor Control With 5V Arduino and NPN Transistor As Speed Control Switch : 4 Steps - Instructables](https://content.instructables.com/FPK/266S/J0IEL1GW/FPK266SJ0IEL1GW.png?auto=webp&frame=1&width=320&md=703763553bb7f0d82ee42011aa0e00db)
12V Motor Control With 5V Arduino and NPN Transistor As Speed Control Switch : 4 Steps - Instructables
![I want to use a NPN transistor as a switch for a L298N motor driver. I have tried to draw a diagram of how it I think it should be wired after I want to use a NPN transistor as a switch for a L298N motor driver. I have tried to draw a diagram of how it I think it should be wired after](https://preview.redd.it/i-want-to-use-a-npn-transistor-as-a-switch-for-a-l298n-v0-ineyj5pjnjgb1.png?width=640&crop=smart&auto=webp&s=2655c265e913b85a776e9890b1e51e33e8d9bb1d)