Question about Normally Closed Transistors - Arduino Forum
Sep 22, 2022 · For these four pins, I would like them to be shorted to ground under normal conditions, except when the Arduino tells them otherwise (technically, I'm using an ESP32 on …
How to connect small speaker - Audio - Arduino Forum
Nov 29, 2024 · There is also talk about putting a diode or 47uf capacitor to protect the transistor. I think this is between the + of the speaker and ground, is that correct? The original site of the …
How can PWM work with transistors? - Arduino Forum
Nov 19, 2018 · Transistor will start acting as normal diode. If You will use transistor pnp, then You need remember about reverse polarity. And collector with resistor and diode will be connected …
Transistor type and model to use as a general purpose switch
Dec 14, 2023 · Hi all, I am a novice in the field of electronics, and I would like to get the community's recommendation for what I am trying to achieve. My current setup, I am using an …
Transistor Base Resistor Choices? - Arduino Forum
May 11, 2012 · If the transistor is being used as a switch (in the common-emitter configuration) then you need to ensure the base gets enough current to saturate the transistor at the desired …
5V to 24V switch with transistors - Arduino Forum
Jan 14, 2020 · You've connected the transistors in reverse and blown them up. For an NPN switching transistor you always wire: emitter -> ground base -> resistor -> arduino pin collector …
Transistor to control a DC Motor - Arduino Forum
Apr 5, 2023 · Two of my students are trying to use a 2N2222 transistor to toggle a simple DC Motor on and off. When I connect a LED to the output that goes to the transistor base pin it …
Transistor als Schalter - Deutsch - Arduino Forum
Aug 17, 2017 · Hallo Community, ich habe eine Anfängerfrage zur Benutzung eines NPN-Transistors als Schalter am Arduino Uno (5V). Ich möchte gerne ein Lademodul für eine …
Base Resistor with Transistor required? - Arduino Forum
May 28, 2008 · A resistor is often used in series with the base of a transistor to limit base current. Without limiting base current you run the risk of damaging your transistor. You probably …
Arduino - High voltage transistor control - General Electronics ...
Aug 24, 2022 · Obviously, the Arduino needs to be connected to the small-transistors drain aswell, since you could not switch the transistor without it A MOSFET is switched by its gate …