Category Archives: Cabin

A Lesson Learned from Lab Testing a Colpitts Oscillator

Posted on 7-June-2016 by mathscinotes

It is the weekend and time to build my personal circuits. Some of my recent personal work has been focused on detecting cars in my cabin's driveway by using a loop of wire that experience an inductance change when a car passes over it. This weekend I built the Colpitts oscillator I discussed in this post, which is part of a car detector improvement I am considering. The circuit I am using now is not as sensitive as I would like, and I am hoping a few changes will allow me to detect smaller vehicles, like ATVs. Continue reading →

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Inductive Car Sensor Math

Posted on 7-April-2014 by mathscinotes

Introduction Spring has come to Minnesota and I want to build an outdoor electronics project -- this is one of my favorite activities. I have decided to build a car sensor for my cabin in northern Minnesota. This car sensor … Continue reading →

Posted in Cabin, Electronics | 2 Comments

Morning in Northern Minnesota

Posted on 10-September-2013 by mathscinotes

Fall is coming ... soon the leaves will start to change color. This is my favorite time of year here. The photographer is my neighbor, Joel Teigland.

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My Little Gilligan's Island - Part 1 (The Shower)

Posted on 8-September-2010 by mathscinotes

Introduction My cabin in northern Minnesota is very primitive (the only water is lake water, no heat, no air conditioning, no phone, no Internet) and I do not want to put any money into it until I get my sons … Continue reading →

Posted in Cabin, Construction | Tagged , | 2 Comments