RV Electrical Upgrade
We spent more than 30 years tent camping and backpacking with our children, but recently we’ve transitioned to a bumper pull RV. We continue to love camping in the great outdoors but like to do… RV Electrical Upgrade
Electrical Power for Astrophotography
Introduction Telescopes that slew to, and track celestial objects do so through the use of electric motors that drive their axes of rotation. Portable telescopes, like the Celestron CPC 1100 GPS, depend on either alternating… Electrical Power for Astrophotography
Get Focussed: Feather Touch 10:1 Focuser
Introduction In a previous post we discussed depth of focus and the difficulties obtaining good focus with fast optical systems. In this post we’ll discuss a solution to the problem, the Feather Touch 10:1 focuser… Get Focussed: Feather Touch 10:1 Focuser
TAN: Trailer Area Network
Introduction A friend of mine, Scott Lemon founder and CTO of Wovyn, and I were discussing my travel trailer API and he coined the term, trailer area network or TAN. My TAN is going to be… TAN: Trailer Area Network
Travel Trailer API
Introduction I have recently purchased a travel trailer and desire to instrument and automate it. I want to control and monitor all of its systems using my iPhone or other mobile devices. When I am out… Travel Trailer API
myDoorbell: Play that Tune
Introduction In a previous post, I described the nine modules that make up myDoorbell. These are shown in the following figure. In this post I’ll address two modules that are difficult to describe separately, the… myDoorbell: Play that Tune
myDoorbell: The Button
Introduction In my previous post, I described myDoorbell’s power supply module. In this post I will describe the circuitry that translates a standard doorbell button press into something that can be easily consumed by a… myDoorbell: The Button
myDoorbell: The Power Supply
Introduction In my previous post, I described the nine modules that make up myDoorbell. While we could begin our discussion with any one of the nine modules, the one all others are dependent on is the power supply.… myDoorbell: The Power Supply
myDoorbell: High Level Design
Introduction In my previous post I described the resources available in the wiring box where myDoorbell will be installed. As illustrated in the following figure, the available resources consist of a 16 Volt AC source and… myDoorbell: High Level Design
myDoorbell: The Existing System
Introduction In my previous post I declared my intent to refresh my technical skills through the development of an amazing doorbell, myDoorbell. In this post I describe a doorbell system found in a typical U.S. residence… myDoorbell: The Existing System
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