Project showcase
CPU and RAM Usage Monitor (Windows & Linux)

CPU and RAM Usage Monitor (Windows & Linux) © GPL3+

A very useful project, made to monitor system resources without opening Task Manager.

  • 10,152 views
  • 30 comments
  • 33 respects

Components and supplies

About this project

Character LCDs are one of the most common things one gets in an Arduino kit. They are very cheap and fun to work with. They are categorized in two categories: one that is directly hooked up to the Arduino board, and another that uses an I2C module between LCD and the main board. In this project, I've used one with pre-soldered I2C module to minimize the number of wires.

Instructions

  • Wire up the components using the schematic below.
  • Upload the code mentioned below to your Arduino Nano/Uno.
  • Make sure your Arduino is connected to a Windows Computer.
  • Use the download button below to download the program.
  • Run the program and enter the Serial Port number (ex., if it's COM4, type 4).

NOTE: This will not work on displays other than 16x2 Character LCD.

Download for Windows (version 1.12)
Download for Linux (version 1.0)

Possible Future Updates

  • Disk Usage
  • System Temperature
  • Usage in actual numbers (not in percentage)

Keep checking this page for the updates

Code

Arduino codeArduino
Have you ever tried the SerialDisplay Example that comes with the LiquidCrystal_I2C Library? This one's the exact same code.
#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x3F,16,2); //Change address if this is not applicable
void setup(){
  lcd.init();
  lcd.backlight();
  Serial.begin(9600);
}
void loop(){
  if (Serial.available()) {
    delay(100);
    lcd.clear();
    while (Serial.available() > 0) {
      lcd.write(Serial.read());
    }
  }
}

Schematics

Wiring
Each wire is color coded.
Logic dvmph2ka8f

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