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DIY

Automated Android graphics creation with Inkscape

After creating new graphics for most every UI element in Recipe Convert Pro in Inkscape I just could not bring myself to manually create all of the individual sizes of each of the individual button states. That would have been around 150 graphics files that I would have to export …

Zeta Reticuli: Arduino MIDI controlled 10-band EQ and multiple external effect interface

Zeta Reticuli: Arduino MIDI controlled 10-band EQ and external effect interface

I. Background Approximately half my lifetime (20 years) ago I used to have literally drillions & drillions of ideas that I still feel aren’t a complete waste of time. One of these brilliant ideas was to be able to control a guitar wah pedal from my computer. At the time …

Android Dev: mundane button making

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One of the parts of Android dev that I personally find the most challenging for a number of reasons is the mundane task of making the user controls. I’m not sure if the fact that it is also an area in which I am most lacking is a cause of …

PACMOD MIDI DJ Controller

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For my son’s birthday I made him a DJ controller designed to resemble an old cabinet arcade machine. What follows is a brief overview of the process to make it, including code. The Teensy was chosen as the brains because of the way it handles USB. Not only does it …

Microchip PIC Serial LCD driver

DIY HD44780 LCD serial driver for microchip pic

As a gift for putting you through revamping my site, here are the particulars for a microchip pic serial LCD driver that I personally use in projects and used to sell commercially. The SLD01a serial LCD driver design is a for a Microchip PIC 16F628a, but it should be simple …

Cheap and simple USB car fast-charger mod

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A few years ago I had to make a fairly long road trip. Around 8 hours each way. I typically use my phone to provide music through the aux jack on my stereo, and when I travel to parts unknown I also use my phone for GPS navigation assistance. On …