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Kerry D. Wong

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Tag: 7 Segment

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Reverse Engineering of BK Precision 1696 Switching Power Supply’s LCD Protocol

November 13, 2017 kwong

As mentioned in my previous post, besides the broken LCD there was also an issue with the power supply portion […]

Electronics 7 Segment, BK 1696, BK Precision, LCD, NJU6433F, Programmable Power Supply, Protocol, Reverse Engineering, SDP, SPI, Switching Power Supply

Digital Metronome — Revisited

June 21, 2012 kwong

Last year, I wrote about a simple digital metronome project. While the device worked pretty well there are a few […]

AVR/Arduino 555, 7 Segment, 74HC595, Arduino, Atmega328P, Metronome

An 8-Digit 7 Segment Display

May 1, 2011August 14, 2011 kwong

I built a 4-digit 7 segment display last year. In that design, I used four 74HC595 shift registers to drive […]

Electronics, Miscellaneous 7 Segment, 74HC138, 74HC595, Arduino, Atmega328P, AVR, C++

4 Digit 7 Segment Display Using Arduino

April 10, 2010May 1, 2011 kwong

I was inspired by Paul’s 7 segment display and decided to build one myself. He used 4 common cathode 7 […]

AVR/Arduino, Coding 7 Segment, 74HC595, Arduino, Atmega328P, AVR, C++, Physical Computing
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