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Kerry D. Wong

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Tag: ULN2003A

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A DIY Vacuum Fluorescent Display Driver

June 13, 2013June 13, 2013 kwong

In my previous post, I showed a simple vacuum fluorescent display filament driver built using a 555 timer and a […]

AVR/Arduino, Electronics 2N3906, 74HC04, 74HC138, 74HC595, Arduino, ULN2003A, Vacuum Fluorescent Display, VFD

A Unipolar Stepper Motor Driver

September 18, 2011 kwong

The drive circuits for Unipolar stepper motors are usually very simple. In its simplest form, a transistor or MOSFET is […]

AVR/Arduino, Electronics L297, Stepper Motor, ULN2003A
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