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Hardware Modder and fellow PS3HaX member KillerBug, who is responsible for a couple of PS3 Fan mods that we have front paged, has been tinkering away on his Arduino board and his PS3, he has created, what he calls a “Hardware Mod Firmware”, here is a quote from his blog:

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Over the past few weeks, I have posted various bits of Arduino sketches for controlling 7-segment displays and reading thermistors. This has all been leading up to this release.

So What is a “Hardware Mod Firmware”? It is a basic sketch that does all the things that most PS3 modders will want to do, while leaving room for other things. It supports from 1-4 thermistors, and you can use 0, 2, 4, 6, or 8 displays to read out the various temperatures. It also transmits the 4 temperatures by serial to a PC or other device with a serial monitor; so you can read all 4 temperatures without any 7-segment displays. Based on the temperatures gathered, the fan speed is set. I intend to refine the process considerably…right now, it is extremely aggressive in trying to maintain a very small heat range…because of this, the fan sounds a bit like a car revving the engine. Smoothing this out is just one of several things on my unofficial “to do” list…but if anyone has any other ideas, feel free to post…you might even think up something that I didn’t.

The sketch is highly configurable; supporting ground and hot controlled displays, and being easily adaptable to different thermistors. The sketch will work fine with any combination of 1-4 thermistors, and 0-8 displays as is; you do not need to modify anything if you are not using sensor(s) or display(s). The minimum number of thermal sensors is 1, but I recommend at least 2…3 for BC units. The 4th sensor is completely useless if you do not have all eight of the 7-segment displays as it does not factor into the fan speed calculations…that is another thing I am thinking of adding.

To view more of KillerBug’s work, visit the source of this news and his blog here.
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Thanks to manster for the tip via IRC


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[multipage=KillerBug’s PS3 Hardware Mod Firmware – Version 0.02a ]

KillerBug has updated his PS3 Fan monitoring “Hardware Mod Firmware”, to version 0.02a, here is a quote from the blog and a snippet from the code:

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Big changes this time…now it uses two 7-segment displays and 5 LEDs; all four temperature readings are displayed as well as the fan speed percentage. Still does serial, still easily configurable. Due to the nature of this new design, I decided to make a video.

This is a script primarly designed for Sony PS3 mods, but designed to be easily changable for other applications.

PS3_HW_MOD_FW_KillerBug_Arduino – Version 0.02a
By Killer Bug

Features:
1.) Reads 4 thermistors, uses them to control the fan. Also displays temperatures and fan speeds on a pair of 7-segment displays. Also transmits all four temperatures and fan speed by serial to a PC or other serial capable device.
As the script is designed, these are placed as follows:
-Thermistor 0 is attached to CPU heatsink base
-Thermistor 1 is attached to GPU heatsink base
-Thermistor 2 is attached to the northbridge chip
-Thermistor 3 is placed at the front, in front of the vents, or the on the emotion engine if equiped.

-This script is designed for ground-controlled displays with ground controlled decimal points. It can be converted to work with hot-controlled displays with hot-controlled decimal points. To do this, first make a copy of all the instructions between the two sets of long ==== lines elsewhere, as the process will destroy the instructions before you are done.



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Very cool!!

so all it does is regulate ps3 temperature?

I don't get the point of this. Sure looks cool, but whats the point of doing this?

i hate when people post news about stuff that would not help anyone on this site. this just allows you to see the temperature of your ps3 so you can avoid a ylod im assuming, and i doubt anyone is going to go out and buy all the wires and shit to set it up, just don't use your ps3 for long hours straight and keep it somewhere where the fan isn't blocked and you will be fine...

nice hack lol

yeahh this is very sick want to see more

Kick ass! Will it work for PS3 slims too?

Im not 100% sure but when dumping nor/nand the thermisters/processors ect can get very hot. People have gone through countless PS3's trying this. I think i remember Math mentioning he was thinking of using liquid nitrogen to cool the PS3 while doing this. Im no 1337 hacker like these people but im assuming they could use this to regulate there temp along with other methods.

Sorry for the sloppy post im using my phone.

Nice find.