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Repair the Elkhorn Creek Water Level Sensor
July 1, 2019Summary As many of you have noticed, www.elkhorn-creek.org has been offline for quite a while (actually since December 22,2018). I…
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RS Components & the Elkhorn Creek
November 18, 2018Summary Earlier this year I hosted RS Components at my house in Kentucky. Here are three videos that they recorded…
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The Creek: Creek Server 1.2
August 28, 2016In the previous post, I talked about two problems that I had discovered in my system. I addressed first one,…
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The Creek: Web Pages with Java Server Pages (JSP)
August 14, 2016The last piece in the Elkhorn Creek IOT puzzle are the webpages that let you view the creek data on…
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The Creek: Creek Server 1.1
August 7, 2016The last few weeks I have been building up the java programs that form the “back office” part of my…
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The Creek: Flood Event Web Page
July 31, 2016In the previous post I talked about scanning through the Elkhorn Creek MySql database and finding flood events. This is…
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The Creek: Flood Event Data Processor
July 31, 2016In the previous post I talked about using JFreeChart to create a plot of the last 8 hours. I have…
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The Creek: Create the Chart with JFreeChart
July 17, 2016It is almost always better to see data in a plot than as raw values. I knew that I wanted…
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The Creek: Install Tomcat
July 10, 2016Apache Tomcat is a web server that allows you to create dynamic web pages using “Java Server Pages” (JSP). Basically,…
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The Creek: Collect Data (Part 2)
July 3, 2016In the last post I went through all of the setup work for the I2CDB program. Now I will give…
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The Creek: Collect Data (Part 1)
June 26, 2016In The Creek: Server Architecture I described a program called “runI2C” which is a shell script that is run once…
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The Creek: Install MySQL
June 19, 2016As I described in the Creek Software Architecture, I am using MySql as the database to hold all of the…
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The Creek: Install the Raspberry PI Software
May 22, 2016Years ago, when I did the first install of a Raspberry Pi (RPi), this whole thing was quite painful, however…
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The Creek: Server Software Architecture
April 24, 2016In the previous Elkhorn Creek posts I discussed the overall system architecture, the design of the Creek Board, and the…
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The Creek: Testing the Bootloader
April 17, 2016In the previous posts I described the main application firmware and the bootloader firmware. In this post I will take…