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Analog CPU Gauge

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Adam Fabio created this analog gauge to show your computer’s CPU utilization:

Analog CPU Gauge

The goal of this project was to build an analog gauge to display computer CPU utilization. I’ve always been fond of classic analog gauges. Most CPU Gauges are either digital on screen displays, or implemented with an LCD mounted in a drive bay

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The goal of this project was to build an analog gauge to display computer CPU utilization. I’ve always been fond of classic analog gauges. Most CPU Gauges are either digital on screen displays, or implemented with an LCD mounted in a drive bay.

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I’d always wanted a CPU gauge for my computer. Ok, and a bandwidth gauge for my router. You name it, I want a nice analog gauge for it. It always seemed a bit silly to use an true galvanometer based analog gauge for signals that are inherently digital.

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The board is available on Tindie:

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Analog Gauge Stepper Breakout Board

Tiny stepper motors for analog gauges and the like!

Analog CPU Gauge

Trailer Brake Light Controller

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Kevin H. Patterson designed this solution for trailer light wiring after installing a towing hitch on his vehicle:

Custom Brake Light Controller Expands your Trailer’s Capabilities

This is a power module designed to control trailer lights based on signals from your vehicle’s lighting circuits. Most vehicles have at least 4 separate circuits: Running (Tail) Lights, Brake, Left Turn, and Right Turn. Most basic trailers have a 4-wire connector with only 3 signals: Running (Tail) Lights, Left Turn, and Right Turn. The trailer does not have a separate circuit for Brake lights; applying the Brake is supposed to light up both the Left and Right Turn signals together.

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The board can be purchased on Tindie:

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Creltek 3-Line Trailer Light Converter

4-Line to 3-Line Combining Tail Light Power Module for 12V Systems

 
Trailer Brake Light Controller

The MightyWatt: a 70W Electronic Load Kit

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of Kaktus Circuits created this programmable electronic load that sits on top of an Arduino:

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The MightyWatt: a 70W Electronic Load Kit

Electronic loads are used to draw power from a source at either a constant current or a constant voltage. This comes in useful for things like battery discharge testing or making sure that PCB you designed can actually power those motors without releasing the all important magic smoke.

The kit is sold on Tindie:

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MightyWatt turns your Arduino Uno R3, Arduino Zero (M0/M0 Pro) or Arduino Due into an electronic load capable of dissipating 70 Watts in a very small form factor. Ideal for testing power supplies, batteries, fuel cells or power amplifiers.

Design files and source are shared on GitHub:

images1 kaktus85/MightyWatt

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The MightyWatt: a 70W Electronic Load Kit

Vinduino: Save 25% Of Water Needed For Irrigation

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wrote on the Tindie blog:

 

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Vinduino – Save 25% Of Water Needed For Irrigation

Vinduino is one of those projects that set out to solve a really big problem which straight away makes it interesting. Reinier van der Lee wanted to use the least amount of water possible for irrigation in his southern California vineyard.

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Hence the Vinduino project was made to be a relatively low cost system to help save on water use. It is also solar powered, further reducing its impact on the environment.

Vinduino: Save 25% Of Water Needed For Irrigation

Tindie: PCB with Chaos Theory Built In

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 wrote on the Tindie blog about the Chaos Computer by Tom Quartararo:

PCB with Chaos Theory Built In

It turns out you can solve ordinary differential equations using simple op-amp circuits. Paul Horowitz, author of the famous book The Art Of Electronics took an interest in the Lorenz Attractor and made a circuit to solve the Lorenz Attractor equation

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Tindie: PCB with Chaos Theory Built In

USBuddy: USB Development Tool

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Kaktus Circuits created this board to analyze USB devices:

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Tindie Blog: USBuddy

Easily tap into the USB signals coming and going while the device is still connected to the bus [..] monitors power consumption [..] handy for reverse engineering devices without having to take the device apart

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The assembled board can be purchased on Tindie.  The hardware design files have be shared on GitHub:

github kaktus85/USBuddy

 

 

 

USBuddy: USB Development Tool