And if your next fan controller isn’t on our list, do check out our fan controller buying guide located at the end of this article. We’ve also included both premium and budget picks. Also, think about whether you need an internal or external controller.īellow, you can find RGB fan controllers, as well as both single and multi-channel PWM controllers. Decide how many fan connectors you need, whether you want PWN control or not, do you want a single or multiple PWM channels, and whether you have RGB fans or strips or not. Now, finding the controller that suits your needs isn’t that tricky. Getting the best fan controller for your needs allows you to optimize the airflow inside your case, control the fan noise, and even control your RGB effects (on some controllers). But if you have a bunch of case fans, you can greatly benefit from having one, especially if your motherboard has just one or two fan connectors.

For an // Arduino Due that runs at 84mhz a value of 30 works.A fan controller is probably the last thing that comes to your mind when talking about PC accessories.

The default for a 16mhz AVR is a value of 6. It's a bit // of fiddling to find the right value, but in general the faster the CPU the // higher the value. You can do this by passing a 3rd parameter for this threshold. Temperature controller for A/V Cabinet // Fan is controlled by 10A relay connected to a 12v (computer) or 5v (USB) Fan // Piezo alarm for alternate overheating alert int FANTEMP = 95 // High temp at which the fan turns on (90*F) int ALARMTEMP = 120 // Overheating temp (120*F) int FANLED = 2 // Pin for fan 'on' LED int TEMPOK = 3 // LED for when temp is under FANTEMP int ALARMLED = 4 // Alarm LED int ALARMPIN = 7 // Audible alarm for overheating // DHTPIN = 8 (defined below) int FANPIN = 9 // Relay for fan switch #include 'DHT.h' // Written by ladyada, public domain #define DHTPIN 8 // DHT Sensor // Uncomment whatever type you're using! #define DHTTYPE DHT11 // DHT 11 //#define DHTTYPE DHT22 // DHT 22 (AM2302) //#define DHTTYPE DHT21 // DHT 21 (AM2301) // Initialize DHT sensor for normal 16mhz Arduino DHT dht ( DHTPIN, DHTTYPE ) // NOTE: For working with a faster chip, like an Arduino Due or Teensy, you // might need to increase the threshold for cycle counts considered a 1 or 0.

Usb fan controller