Software pwm control

The reason you may want to use software PWM is it allows for pwm to be used on any pin. Which is ok for arduino's which has like 6 don't quote me on that but its great for an attiny which only has 2 pwm ports but with software pwm you can have all the usable pins as pwm pins. So enjoy and Comment any problems you have. I won't cover how to upload sketches to an attiny and although will be using an arduino uno, if you change the pin numbers and upload this sketch to an attiny it should work absolutely fine.

PWM stands for pulse width modulation and essentially it imitates an analogue signal. PWM turns the voltage high and low for different amounts of time which is so fast that the human eye can't detect the changes and it looks to be fading, this is an example of persistence of vision. The important thing that i took away from this is the duty cycle is the percentage of power needed and the length of the time the output is high, determines how much voltage is outputed.

I hope that makes sense to you I will go a bit more in depth later on but feel free to ask me any questions you may have. I only need to use it between benchmark runs to clear hot air from the case and speed up the time it takes for the components to return to normal temps. I don't even need it to be running during benchmarks, as I want results that translates to my general use, this includes temperatures of every component as good as possible. This is also why I don't remove the case side panel for instance, which could have been another option.

I don't want a program running in the background all the time, since I need it only a few times, and then maybe not use it for a month. I haven't used since around the early or mid s I think, but that left bad memories althought it used to be an excellent program up to that point. There were other alternatives back them, but I can't remember any of the names. But if SpeedFan is a decent program now, that would be great.

I'll have a look at the site you suggested. Thanks a lot for your reply, it is much appreciated. Last edited: Feb 17, Gmoney06ss Honorable. Jul 3, 1, 12, Speed fan is a decent program, but bios is always the recommend way to go.

I'd set the fans how you want for general use. Then just wait a few minutes in between benchmark runs to clear the hot air. Shouldn't take to long. Reactions: Phaaze Thanks a lot for your reply, I really appreciate it. My intention is of course to use BIOS settings I prefer having BIOS setup for as many things as possible, instead of running software in Windows for example. But every once in a while, this results in a lot of extra time spent fiddling and tweaking, and rebooting, so it would be extremely convenient if I could find a simple piece of software that would allow me to adjust case fans on the fly.

It is not just clearing the hot air, it also helps getting VRM temps back to normal along with the complete system in general, which takes a little while.

If I can't find such a program, I'll just continue doing what I do now, but I would much prefer to spend a lot of that time on something else and more productive. However, it isn't important enought that I would go out and buy a fan controller for instance, or some other peice of hardware to connect, I'm not that unhappy. However, which is the best fan control software and how to choose the suitable one? This post from MiniTool will list 10 fan control software. The computer fan is very useful to keep your computer cool and reduce the irritating noise like a wind tunnel.

When the heat of the computer is too heat, the Windows 10 will become very slow and unresponsive or shut down unexpectedly. Changing the computer fan speed can be done manually or automatically. So, in this post, we will show you how to change fan speed automatically.

To change fan speed automatically, you may need the help of fan control software. Therefore, in this post, we will show you several fan control software and you can try them to change the fan speed of your computer or laptop.

We will introduce the first fan speed control software. Having the Raspberry Pi to work with only these voltages will limit its ability to interface with other electronic devices. To get rid of such limitation, there is a technique called PWM to modify the power delivered to the load. PWM or Pulse-Width Modulation is a method of reducing the power delivered by an electrical signal through controlling the amount of time that an electrical signal is on and off at a certain frequency.

If we deliver a high digital signal to the LED continuously, then we can continuously set it to fully bright. But what if we only deliver the high digital signal to the LED half of the time, does that mean it is fully bright half of the time?