Hello! My first post. Just to share what I have done with my dm920, http://munjeni.myiphost.com/dm920/ . It need some more tweaking for more precise cooling (to make it stop when temperature drop to 35c), I'm curently satisfied with temperature drop from 70c-80c to almost 45c. It would be cool if somebody tweak it more and post it here! Enjoy!
Dreambox DM920 implementing fan
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New version fully and much better is done. Now fan going off when temperature is lower than 35 degree. Used the same fan but this time
I have bought pic12f675 and programed it specialy for dm920, here is source code and scheme -> https://github.com/munjeni/pic…e/master/projects/pwm_fan