Author Archives: jimhannon

Air Quality Sensor

Posted on July 18, 2019

An air quality sensor (dust sensor) has been on my todo list for a while. There are a number of sensor modules on the market for the DIYer but all that I had seen seemed to not be suited for … Continue reading →

Posted in Amateur Science, citizen science, Electronics, environmental monotoring, Imbedded Software, Nature, Software | Tagged , , , , , | Leave a comment

Telescope Mount Adapter

Posted on June 25, 2019

The University of Iowa donated the Rigel robotic telescope to the Cedar Amateur Astronomers. Plans are to install this telescope in one of the domes at the observatory. To mount the scope an adapter is needed to connect the scope … Continue reading →

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Biochar Study

Posted on April 18, 2019

This is a  citizen science activity that I spotted on Scistarter. I keep an eye on the citizen science projects on Scistarter and this one interested me. Scistarter lists a lot of citizen science projects. I had seen a lot … Continue reading →

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Soil Temperature Probe

Posted on April 13, 2019

A soil temperature probe has been on my todo list for a while. So I decided to build one now along with a number of other improvements, and repairs to my weather station. The soil temperature at four inch depth … Continue reading →

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Rain Sensor

Posted on January 1, 2019

I thought it would be interesting to add a rain sensor to my tipping bucket rain gauge. Because it take time for the bucket to fill and does not always tip right when it stops raining a sensor that detects … Continue reading →

Posted in Amateur Science, Astronomy, DIY, Electronics, environmental monotoring, Imbedded Software, Nature, Software | Tagged , , , , , , , , , , , | 1 Comment

Barn Door Star Tracker

Posted on October 21, 2018

I wanted to take some star pictures with my DSLR and decided a barn door style star tracker would be a fun project to build. Early versions were nothing more than two boards connected by a hinge with a screw … Continue reading →

Posted in Amateur Science, Astronomy, DIY, Electronics, Imbedded Software, Photography, Software | Tagged , , , , , | Leave a comment

Building A Sand Muller

Posted on May 28, 2018

To do sand casting a muller is almost a necessity. It is difficult to mix up foundry sand either green sand or oil bonded sand without a muller. I have been thinking about how to build a muller for some … Continue reading →

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