I want to make a fan conroller. A with a fan controller I can control a fan. For example when the temperature is higher than 27 degrees C it needs to send 70% power to the fan, else 30%.
For this I need a dimmer. But is there a module for this?
I found this website http://diyhacking.com/arduino-lamp-dimmer/
But here I have to build it myself.
Does someone has a website where I can buy a dimmer module? It need to work with 230v.
Have you searched the Google.It really can help you.
leoncorleone:
Have you searched the Google.It really can help you.
Yes I did but I can't find any good link.
The problem is that I am a noob at electronics.
How is the thing called that I am looking for.
It need to support AC 230V.
Is it called a pwm?
How big is this fan? If it's about the same size as a regular computer fan (80-140mm diameter) then it's best to buy a computer fan, with an appropriate 12V power supply.
Get a 4-wire fan, which has a separate control wire. This can be hooked directly to any PWM pin on your Arduino.
While it is possible to control a 230V fan, it's not a good choice for your first project.
MorganS:
How big is this fan? If it's about the same size as a regular computer fan (80-140mm diameter) then it's best to buy a computer fan, with an appropriate 12V power supply.Get a 4-wire fan, which has a separate control wire. This can be hooked directly to any PWM pin on your Arduino.
While it is possible to control a 230V fan, it's not a good choice for your first project.
It is a big fan, I can't work with a small fan.
Here is a link: http://www.eugrowshop.eu/uk/fans-odor-control/tube-extractors/winflex-ventilator-16w/
I am not sure if this is the one but it will be very similar.
That's not a large fan. A little bigger than the average computer case fan. 185m3/hr is only 109CFM. Try here for a list of more than 1000 12V fans ranging up to 300CFM. Yes, they're more expensive than EUR21 but I know I can find one in that list which is controllable by an Arduino with no other hardware.
(I'm not 100% sure that link will work, but it will get you closer to the solution.)
For the 230V fan to work, it has to respond to either frequency or voltage control. The web page doesn't say, so you must buy one and experiment. Then you need a driver capable of that sort of control, presumably controllable by Arduino rather than a dimmer knob.
That's all presuming you actually need proportional control for your application. A simple on/off controller can work surprisingly well.
Most AC fans are not controllable. The requirement for mains power isn't going to help.
MorganS:
That's not a large fan. A little bigger than the average computer case fan. 185m3/hr is only 109CFM. Try here for a list of more than 1000 12V fans ranging up to 300CFM. Yes, they're more expensive than EUR21 but I know I can find one in that list which is controllable by an Arduino with no other hardware.(I'm not 100% sure that link will work, but it will get you closer to the solution.)
For the 230V fan to work, it has to respond to either frequency or voltage control. The web page doesn't say, so you must buy one and experiment. Then you need a driver capable of that sort of control, presumably controllable by Arduino rather than a dimmer knob.
That's all presuming you actually need proportional control for your application. A simple on/off controller can work surprisingly well.
The problem about those fans is that they are not made to connect to hoses. I need a fan to extract air from a small room. I can't find any fans for this purpose with PWN wires.
This is the hose I mean. http://www.eugrowshop.eu/uk/fans-odor-control/combi-exhaust-hose-silver-black/exhaust-hose-combiconnect-102mm/
That's nothing that duct tape can't fix. Did you ever stop to think why it's called "duct" tape? It's for ducts!
120mm also looks a lot like the right size for a computer fan. However they aren't usually built to push air a long distance, so you might have to spend a few bucks extra.
MorganS:
That's nothing that duct tape can't fix. Did you ever stop to think why it's called "duct" tape? It's for ducts!120mm also looks a lot like the right size for a computer fan. However they aren't usually built to push air a long distance, so you might have to spend a few bucks extra.
My air system can't leak, even a small leak.
You could just let the fan run at full speed and reduce the air flow with a butterfly valve operated by an RC servo.
outsider:
You could just let the fan run at full speed and reduce the air flow with a butterfly valve operated by an RC servo.
But I need to control it with an arduino. Ive made an app where I can control the arduino with. So than I can control the fan with an app.
That "woosh!" sound wasn't the air in the duct.
OK, I'll bite. WHY can't it leak?
Most mains fans are cheap shaded pole induction motors. They won't respond to voltage control very well at all and frequency control will be very difficult and have it's own set of problems. A mains voltage variable frequency converter is probably not going to be cheap to get, and certainly no easy to interface with an Arduino.
Your options here will depend on your requirements. First, I'd like to address this:
My air system can't leak, even a small leak.
Then give up. Everything leaks, it is impossible to create a perfect seal. With that thought in your mind then, you need to decide how much leakage is acceptable. Unlike MorganS's rather naive pronouncement, duct tape is terrible for air ducts, so it's perfectly reasonable to say that a hack job like that won't be good enough for you if this is going to be a long term installation.
I don't recommend using a PC case fan either. They are designed to be used in a completely different kind of installation than this fan and probably won't be able to generate the pressure needed to get good airflow through a long and twisty tube.
I think your best options are these:
jwz104:
But I need to control it with an arduino. Ive made an app where I can control the arduino with. So than I can control the fan with an app.
Note the "operated by an RC servo" part of the post.
I know it is impossible to make the perfect seal. But the fans that I want to buy are made for where I am going to use them for. An computer fan is not.
And it is possible to control the fan with an fan controller. Here is an example from a company who sells good fan controllers: http://cli-mate.nl/ But I can't control those fan controllers with my arduino.
Also there are fans with build in fan control, but I can't control those with my arduino. Those fan-controllers have build-in temperature sensors to control the fan.
I think what I want to make must be possible because there are lots of companies who make fan controllers. Only you can't contol them with an arduino...
Yes, it's possible. But right now it's still mostly in your head. We need some real information to assist with your search. Flow rate, pressure, size, weight, why 'sealed' is important...
I've already made more than 1000 suggestions, and unless you can tell my WHY those aren't suitable then I can't make any more suggestions.
I just want to make a fan controller.
It is for cooling an grow room.
When you search on google "fan controller grow" can see what I mean. A fan controller is made for the kind of fans I want to use.
I just need a fan controller that I can control with my arduino.