hw-gauge

A rust powered CPU and memory monitor for Linux and Windows systems.

The device displays a bar graph indicating both the all-cores average (on the left) and the peak core load, as well as the 15 second average in numeric form.

The graphs are updated once per second, but the CPU bars have animated falloff to make it more visually appealing.

daemon/linux

A simple Linux daemon to send CPU info to the device.

Building

Install rustup per your Linux distribution to get a functioning Rust toolchain. Use cargo run to test the daemon:

env RUST_LOG=debug cargo run

daemon/windows

Windows service to send CPU info to the device.

Building

If you don't already have a Rust MSVC toolchain installed, install the VisualStudio Build Tools with the Desktop development with C++ option enabled. Then install rustup, and finally close+reopen PowerShell to load the updated PATH:

winget install Microsoft.VisualStudio.2022.BuildTools
winget install Rustlang.Rustup
exit

Build the service executable:

cd daemon\windows
cargo build -r

Installation

After building the executable, create a hw-gauge folder in C:\Program Files, and copy target\release\hw-gauge-winsvc.exe into it; without creating the target and release directories.

Run the following command from an Administrator PowerShell prompt to register the service:

new-service -name "hw-gauge-winsvc" -binarypathname "C:\Program Files\hw-gauge\hw-gauge-winsvc.exe"

You may then use services.msc to start the newly added service.

firmware

Firmware for LilyGO T-Display RP2040 boards. It should be relatively easy to modify for a regular Pi Pico with a ST7789 SPI display.