I have a 3.7v tiny valve solenoid which has 2 black leads, and doesn't seem polarity sensitive. Do I still need a diode? Thanks for the informative video
I have a 12v solenoid and a relay, I don't have any mosfet or diode on my solenoid. Which is directed to relay. the relay is connected to the battery and solenoid, and to Arduino relay has NO, Common, IN. Is this safe? It is causing a random signal on my coin slot IR sensor, which is causing a count even though I'm not dropping a coin in the slot. Please help me.... this is for my project at school.
Hi - we recommend asking for help in a dedicated electronics forum like the official Arduino forums or a place like Reddit or Stackexchange. You will need to post pictures of your circuit and your code in order for people to help you, otherwise nobody can really tell what exactly is going on.
You're correct, a relay would work here as well, but not for controlling the speed of a motor with a PWM signal from the Arduino where you need the faster switching of a transistor.
Good video. Always enjoy the information. Well presented.
Thank you.
I have a 3.7v tiny valve solenoid which has 2 black leads, and doesn't seem polarity sensitive. Do I still need a diode?
Thanks for the informative video
Hi - technically it's good practice to use a flyback diode for any inductive load like a motor or solenoid.
@@Science.Buddies Thanks. I've got it running without one, or a capacitor ,and it seems fine.
Thank you for helping me again :)
I have a 12v dc 5-2 Solenoid valve that I want to control with arduino. It’s a much bigger pneumatic actuator, will this work for that.
You'll want to check out some of our other Arduino tutorials, especially #'s 16 and 19: www.youtube.com/@Science.Buddies/search?query=arduino%20power
🔥🔥🔥
what transistor and diode are you using
For the diode, a common rectifier diode like 1N4001. For the MOSFET, RFP30N06LE 30A 60V N-Channel Power Mosfet TO-220
Hlo
I tried the project solenoid door lock using rfid and arduino.solenoid is not controlling.what would be the reason
I have a 12v solenoid and a relay, I don't have any mosfet or diode on my solenoid. Which is directed to relay.
the relay is connected to the battery and solenoid, and to Arduino
relay has NO, Common, IN.
Is this safe? It is causing a random signal on my coin slot IR sensor, which is causing a count even though I'm not dropping a coin in the slot.
Please help me.... this is for my project at school.
i hope you reply here
Hi - we recommend asking for help in a dedicated electronics forum like the official Arduino forums or a place like Reddit or Stackexchange. You will need to post pictures of your circuit and your code in order for people to help you, otherwise nobody can really tell what exactly is going on.
Would a relay here work as well in replacement of a transistor? I thought transistors are meant for fast switching
You're correct, a relay would work here as well, but not for controlling the speed of a motor with a PWM signal from the Arduino where you need the faster switching of a transistor.