digital temperature/fan-control with LCD for PC, selfmade

keiang · Post by **keiang** » January 2nd, 2005, 9:34 pm

It is done, a final version of a guidance how to built up this fan/temperatue-control is available now
for the Download. (press button "Auf gehts" to start download)
Here you can find some pictures and a detailed desription in english

the main characteristics in the overview:

- Micro-controller digitally regulated fan/temperature-control, regulation works 100% independently of the operating system (e.g. Windows...)
- with up to 8 sensors the temperatures of the PC's are monitored and the speed of the fans are adapted automatically
- very exact temperature sensors with a accuracy of 0,1Ã‚Â°C (DS1820)
- several safety functions protect against the overheating of the computer hardware
- low-loss control of the fans by pulse-width-modulation (PWM), saves energy and produces no additional heat
- the fans can be regulated within a range of 40% to 100%
- The fan's speed is also shown in PWM mode, over the whole work area
- USB-interface
- suitable also for watercooling
- display of all values on LCD 1*20/2*20/4*20 (temperatures, fan's "rpm", alarm status...)
- simple operation over only 2 keys
- very flexible configuration possible (alarm temperatures, sensor-fan config, hysteresis...)
- storage of all settings in eeprom
Sorry for the bad english, i will try to improve the translation but it is a little bit hard for me. Maybe someone can help me?

Post by **ccb056** » January 2nd, 2005, 9:39 pm

looks interesting

keiang · Post by **keiang** » January 19th, 2005, 8:05 pm

If someone are not able to connect to my website and want to get the "HowTo built this Fan-Control", please simply send me a email to "[email protected]" with subjekt "HowTo Fan-Control" and i will send you the full archive containing a screenshot of my website, all plans and the HowTo.

keiang · Post by **keiang** » August 19th, 2005, 3:09 pm

A "small" update of the project: 1.) Instead of a normal Text-LCDs (HD44780 etc.) also a graphics LCD can be connected now, with that some more information can be indicated at the same time. I used a GLCD with the controller "T6963C" (240 * 64 pixel) here. Here is a short video: Video of the GLCD (press button "Auf gehts" to start download) Description of the GLCD: Regulation with GLCD

2.) The software for Windows is now also almost ready. At this time all dates of the regulation can be indicated and adapted (temperature-, fan-, regulation dates as well as all configuration data: temperature limits, sensor-fan config, etc.). As next a small interface comes for the software "Samurize" http://www.samurize.com included, with that everyone can represent the dates graphical likes he want to. You find a precise description and even further information here: Windows Software

The most important enlargement is to be let indicate all dates in a diagram. With that one gets a very good overlooks about the regulation behavior and with that whether all attitudes are correct. The diagram can be stored if required with a right click as a graphics file.

3.) With this enlargement bigger fans (>2W) or several can be connected at the same time. in total 6 fans with each 10 W can be connected. Description of the fan enlargement: fan enlargement

keiang · Post by **keiang** » February 8th, 2006, 2:05 pm

Just a short update of this project. I have added support of a new graphic LCD: graphic LCD during operation ( all data scrolling from down to upward ):

the setup menue on graphic LCD:

Mode choice by pressing switch:

on this graphic LCD I have tested now a diagram function:

short movie of diagram mode:

download movie ( to start download click on button "auf gehts" ): graphic LCD -> diagram mode Link: graphic LCD with "SED1520"-Controller connected to fan control V1.4d