Projects

48 RGB LED Sequencer

Aurora 48 – 48 RGB LED Sequencer

Aurora 48 is a compact and thin profile full-color LED sequencer. It’s built entirely with surface mount components, so the profile is nice and clean. Step 1: Features Capable of individually controlling 48 Full color LEDs. Each LED can be faded in 7 bit per channel – 2,097,152 colors. Gamma corrected brightness curve for very smooth fades. Simple,

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LED Sensors schematic

LED Sensors

Things are moving along … With my new understanding of I2C master/slave communications, I’ve started work on larger arrays and finding the best way to manage the array and communicate the data to the host PC. Above is the latest iteration of the project… and here is a lengthy description of what you’re seeing: Along

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Iron in the Fire II

Iron in the Fire II

In my previous post, I write about an LED matrix for a marquee. The display itself is a two-board solution, the second board or ‘daughterboard’ piggy-backs on some pin headers from the display board. This second PCB provides the control interface and logic for handling these 64 leds, and passing along control data to any

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Schematic rotary switch

How to interpret the direction of rotation from a digital rotary switch with a PIC using PIC16F877A

How to interpret the direction of rotation from a digital rotary switch with a PIC The objective for this Instructable is to illustrate how to interface a digital (quadrature coded) rotary switch with a microcontroller. Don’t worry, I’ll explain what quadrature coded means for us. This interface and the accompanying software will allow the microcontroller

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Water Filter Controller

Water Filter Controller

As a fan of taking my dihydrogen monoxide in straight, uncut, uncorrupted liquid form, I purchased a six stage reverse osmosis filter some years ago. My filter is a few years old now, and the super calcium enriched water we have in Michigan has taken its toll. The filter used to shut off when the

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