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Author Archives: rob
I2C LCD Shield for Arduino – save wires!
The standard character-based display used on many Arduino projects are based on the Hitachi HD44780 chip. They are available quite inexpensively, as little as $2.59 on eBay shipped from China for a 16×2 display. Sizes go up to 20×4 (what … Continue reading
Arduino Class Sunday Dec 13
This is a reference post for the Intro Arduino class I am teaching as part of the Atlanta Radio Club’s 2nd Sunday Tech series. More info on the series at http://secondsunday.tech. Getting Started with the Arduino! Low-cost user-friendly microcontrollers have changed … Continue reading
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Arduino + AD9850 DDS
I’ve been playing with connecting an Arduino to an AD9850 DDS waveform generator. This is a DDS chip from Analog Devices that is capable of outputting a sine or square wave at frequencies up to 40 MHz. There are two … Continue reading
20×4 LCD display tips — on an Arduino Nano
Using a blog for debugging notes so I can easily refer to it. LCD displays are quite common for Arduino applications. I have purchased a 20×4 white on blue backlit display. Most LCD displays on Arduino are based on a … Continue reading
Standing Peachtree
Over a year ago the City of Atlanta City Council passed motion to open a park along the Chattahoochee at the site of the Atlanta water intake facility, by the Hooch Wave. Every year someone asks about the Hooch Wave … Continue reading
My extremely biased review of the Decatur Craft Beer Festival
I live in a condo in downtown Decatur. I love beer. I am a beer nerd, not a beer snob. There is a difference — each to their own. I will admit then when faced with a lame InBev lager … Continue reading
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Head to Head Catan
During the last “snow week”, Chloe was sitting at the kitchen table playing with the resource hex tiles from the game Settlers of Catan. “What are you doing?” She replied that she was trying to design a head-to-head kind of … Continue reading
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Noontootla Creek
This article was originally posted in the Georgia Canoe Association Eddyline. It is a writeup of a trip taken by Todd McGinnis and I on 12 January, 2014. Noontootla Creek – the creek less paddled Noontootla Creek is a trout … Continue reading
Whitewater Nose Clips
Winter means more pool roll practices. I need nose clips for chlorine pools! Why make your own nose clips? They only cost $8 each. Because you can Because you don’t like paying $8 (Me) Because you seem to need/lose a … Continue reading
1993 Eurovan MV Weekender “pop top” SOLD
SOLD in April 2014. Left posted here for nostalgic purposes … 1993 VW Eurovan MV Weekender. 156K+ miles. Silver/gray with white pop top. We are selling Evie, our 1993 Eurovan. She was purchased in February 2011 with 123K miles. The … Continue reading
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