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