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The Randall Museum in San Francisco hosts a large HO-scale model model railroad. Created by the Golden Gate Model Railroad Club starting in 1961, the layout was donated to the Museum in 2015. Since then I have started automatizing trains running on the layout. I am also the model railroad maintainer. This blog describes various updates on the Randall project and I maintain a separate blog for all my electronics not directly related to Randall.

2021-11-14 - Motion Sensor

Category Randall

The motion sensor finally has a little cover to keep it in place:

Description of the Motion Sensor and how it is hooked into the NCE AIU01:

https://www.alfray.com/trains/randall/about.html#h.mnaglpwxrgon 

For reference, here’s how the sensor is calibrated:

And this is the design I printed:

https://www.tinkercad.com/things/lcY8kgGdjun-randall-motion-sensor-box-2


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