Arduino Controlled Liquid Cooling Pump Speed Regulator For Extreme Ev Acceleration Demands

This program sends the GPU data (core and vram temps) and the info if the excavator is running. Important note: check line 25 and change the COM number to the one on which your Arduino is connected! Also, if you want the program to run in the background unseen, save it with a ".pyw" extension instead of ".py".

The Arduino program, including the custom functions to drive the fan controller ICs over I2C, this is why it grew so big and may look intimidating. I packed everything into meaningful functions, so I hope you are able to figure it out!

This program sends the spacebar and tabulator to Arduino over Serial, which triggers LCD backlight toggle. Important note: check line 10 and change the COM number to the one on which your Arduino is connected!

Schematic I made and used to wire everything together on the actual 3D-printed board

The Automated Liquid Cooling System (LCS) is a closed-loop thermal management system designed to monitor and mitigate high temperature loads. The system simulates environmental temperature trends and triggers a dynamic variable-speed fan and a high-volume liquid pump when critical safety thresholds are breached.

The primary objective was transitioning from simple breakout boards to deep hardware-software integration, covering non-blocking multitasking, inductive load isolation, transistor switching, and back-EMF protection networks.

To prevent inductive noise from crashing the electronics, power is split into two independent loops sharing only a ground connection:

The firmware completely avoids delay functions, which freeze the CPU and block critical thermal polling. Instead, it relies on Asynchronous Time Slicing via the internal millis clock hardware. The program regularly monitors the elapsed duration since a timestamp variable was last set:

If the condition is false, the CPU skips the block and processes other routines, running the LCD, monitoring thresholds, and blinking status indicators simultaneously.

Hysteresis Recovery Window: To prevent rapid, erratic system oscillating at exact boundary marks, the cooling pump latches ON once a critical 100°C limit is reached. The pump remains running continuously until the system drives the temperature all the way down to a safe baseline of 30°C.

Controlling fans and pumps using Arduino opens the door to a wide range of automated systems-from climate control to water circulation and beyond. In this comprehensive guide, we’ll dive into the practical side of motor control by exploring techniques to manage fans and pumps using Arduino. We’ll cover essential hardware considerations, discuss the interfacing of common components such as transistors and relays, and provide detailed code examples Connecting LCD Displays Discover how to connect and program LCD displays with Arduino in this comprehensive guide. Learn wiring, coding, and troubleshooting for optimum performance. showcasing both PWM control and on/off switching. Whether you’re designing a smart home system or an industrial cooling mechanism, this guide will help you achieve reliable and efficient control in your projects.

4. Hardware Setup Connecting LCD Displays Discover how to connect and program LCD displays with Arduino in this comprehensive guide. and Circuit Considerations

5. Example 1: Fan PWM Speed Control Controlling a DC Motor with a Transistor and Arduino Learn how to safely control DC motors with Arduino using transistor circuits, code examples, and practical wiring diagrams for your robotics projects.

7. Troubleshooting Your First Hands-On Arduino Project Embark on your Arduino journey with our step-by-step guide. Learn to build a simple circuit, write your first code, and troubleshoot your project easily. and Best Practices

Fan and pump control are fundamental in projects where regulating air flow, temperature, or liquid movement is needed. This guide explains practical methods to control these devices with Arduino What is Arduino? A Comprehensive Overview Dive into the world of Arduino with our in-depth guide covering hardware, software, and community projects ideal for students, hobbyists, and educators. , focusing on real-world implementations. We will look at controlling fan speed using pulse-width modulation (PWM) and managing pump operations through relay switching. By the end of this article, you will be well-equipped to implement these control strategies in your own projects.

These insights will not only strengthen your knowledge of motor control but will also allow you to design more efficient and responsive systems.

Fans and pumps, though different in function Creating Custom Functions Elevate your Arduino projects with custom functions. Our guide features practical examples, troubleshooting advice, and best practices for clear, modular code. , both rely on motor control principles:

Understanding these fundamentals is critical for selecting the appropriate components and control methods for your application.

Before diving into code examples Connecting LCD Displays Discover how to connect and program LCD displays with Arduino in this comprehensive guide. , it’s important to plan your hardware interface:

With your hardware in place, you can move on to implementing control logic using the Arduino IDE Your First Hands-On Arduino Project Embark on your Arduino journey with our step-by-step guide. .

This example demonstrates how to control the speed of a DC fan using PWM. The fan’s speed is adjusted based on a potentiometer Controlling a DC Motor with a Transistor and Arduino Learn how to safely control DC motors with Arduino using transistor circuits, code examples, and practical wiring diagrams for your robotics projects. input, making it perfect for applications like ventilation systems or dynamic cooling setups.

Below is the Arduino code Controlling a DC Motor with a Transistor and Arduino Learn how to safely control DC motors with Arduino using transistor circuits, code examples, and practical wiring diagrams for your robotics projects. for PWM fan control:

This code reads a potentiometer’s value to generate a corresponding PWM signal, thereby adjusting the fan’s speed. Be sure to hook up the MOSFET correctly and include a flyback diode Controlling a DC Motor with a Transistor and Arduino Learn how to safely control DC motors with Arduino using transistor circuits, code examples, and practical wiring diagrams for your robotics projects. across the fan for protection.

In this example, we control a pump using a relay module Automated Irrigation System with Sensors and Relays Discover how to design and implement an automated irrigation system using sensors and relays to efficiently manage water and enhance plant care. . The Arduino will switch the pump on and off according to a predefined schedule or sensor input. Here, we simply toggle the pump state every few seconds for demonstrative purposes.

for pump control with a relay:

This example uses a simple non-blocking timer (millis) to toggle the pump state every 5 seconds. In real-world applications, you might replace the simple timer with sensor Introduction to Sensors for Arduino Learn the fundamentals of Arduino sensors, including setup, calibration, and coding examples—perfect for building interactive, smart projects with precision. -based logic to control the pump based on water levels or pressure readings.

Implementing fan and pump control can present unique challenges. Here are some tips to help you fine-tune your projects:

Next, consider integrating sensor inputs to create smart control systems-for instance, adjusting fan speed based on temperature or operating a pump according to water level readings. Experimenting with these enhancements Your First Hands-On Arduino Project Embark on your Arduino journey with our step-by-step guide. will sharpen your project’s efficiency and responsiveness.

Practical control of fans and pumps with Arduino provides valuable insights into motor control and automation. In this guide, we covered two key examples: using PWM for dynamic fan speed regulation Using PWM for Precise Speed Regulation Master PWM for precise motor speed control in Arduino projects. Our detailed guide covers fundamentals, practical examples, and troubleshooting tips. and employing a relay for robust pump control. By addressing both hardware considerations and software implementations, you now have a strong foundation to build more intricate systems that integrate with sensors and real-world inputs.