54 lines
2.7 KiB
Markdown
54 lines
2.7 KiB
Markdown
# Universal K80 Cooling
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This is a Linux cooling control software, which uses an Arduino Uno, PWM fan, and Python 3. It was designed for use with a Tesla K80 (a datacenter GPU without fans), but should work with any NVIDIA GPU.
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This will determine the speed your fan (connected to your Arduino) should run at based on the highest temperature
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between your GPUs, then will send that speed to your Arduino.
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Make sure to set the port in the .py file you use!
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---
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### How to use
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1. Connect the Arduino to the fan according to this diagram:
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2. **Set the port variable**
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1. Instructions for finding the port are in the Python code.
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3. Upload `Arduino/rx_speed.ino` to your Arduino Uno, then run `Python/tx_speed.py`.
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1. Make sure not to run the Python file until the Arduino sketch is done uploading! It should only take a few seconds.
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5. Revel in your success!
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1. If you plan to use this constantly, make sure to create a service that starts the Python code on boot.
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### My setup
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- I use [this](https://www.thingiverse.com/thing:4960323) 3D-printed fan adapter for my Tesla K80; I highly recommend it.
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- I also remixed it into a 92mm version [here](https://www.thingiverse.com/thing:5408988)!
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- Also, I use [this](https://www.amazon.com/8025-DS08025R12U-0-7A-4Wire-Cooler/dp/B08PYLMGVM) fan. It's not necessarily a *bad* fan, but it's very loud.
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In the long-term, I'm planning to build my own front cover for my PC case (a Corsair 175R), and will have a spot for my
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Arduino and wiring in it.
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Pictures will be added later once my setup is complete. Don't expect it to happen anytime soon, though.
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---
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### Notes and Limitations:
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- This currently **only supports NVIDIA GPUs**
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- This currently **only supports normal PWM**, not delta PWM
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- You *may* need to change some variables in the Arduino code depending on your fan's specifications.
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- Try looking up a datasheet
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- This was designed for an Arduino Uno, and should work on one. I don't know about running it on anything else, though.
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- `tx_speed.py` works fine, but it's just an infinite loop. I'm working on marking a version that uses a cron job, but it's not done yet.
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---
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### Resources I used
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- Python-Arduino communications library - [pySerialTransfer](https://github.com/PowerBroker2/pySerialTransfer)
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- Thanks for the help figuring this out, [PowerBroker2](https://github.com/PowerBroker2)!
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- Arduino PWM fan control - [25 kHz 4 Pin PWM Fan Control with Arduino Uno](https://create.arduino.cc/projecthub/tylerpeppy/25-khz-4-pin-pwm-fan-control-with-arduino-uno-3005a1)
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- This is the basis of my arduino-fan diagram
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- See NVIDIA GPU temperatures - [GPUtil](https://pypi.org/project/GPUtil/)
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---
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### TODO
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- Add diagram for wiring LED lights
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