March 15, 201016 yr Author The 4-pin is for power (diskette drive connector) The 5-pin at the upper right is internal USB. The silver block next to it is the conventional USB-typeB. THe four 3-pin on the far left are for Dallas 1-wire temperature probes. I'll eventually post all my code someplace like Google Code. But right now, it is too ugly.... needs some of those things you call "comments" added to it.
March 15, 201016 yr Is there any way to have it turn something on or off like an LED? With fans it probably changes the voltage to slow or speed them. But with lights it's on or off.
March 16, 201016 yr Author Fans are controlled using Pulse Width Modulation (PWM) not voltage. There are 4 binary low-power outputs that can be switched on and off. But you have a 20x2 matrix LED display... that's plenty of LEDs.
May 7, 201016 yr I have a CoolerMaster Stacker STC-01 that has 4-in-3 cases /w CM fans. In one of those cases the hdd's show temps of 34-36 celsius. The fans are about as loud as my LCD projector, they don't have PWM. Is there any possibility to get them quiet down with temperature based cooling or are they just so hot that slower fan speeds would rise temps too much? Those hot drives are mostly Seagates. I hope this project goes well!
July 20, 201114 yr I just bought this http://www.newegg.com/Product/Product.aspx?Item=N82E16811997017
July 21, 201114 yr Bringing this back from the dead ... did this go anywhere? It appears the consensus was that it is just too expensive to add an LCD just to control and show fan speed. "Temperature-based fan speed control for unRAID" without these front LCD units is easy to do and more importantly, it can be done for free.
Archived
This topic is now archived and is closed to further replies.