Choosing a Reed Switch for Model Railway Automation

This is a guide to choosing a reed switch for a model railway model automation when using a Raspberry Pi or Arduino. The reed switch can be used with a magnet on the locomotive, wagon, carriage or elsewhere on the train. This will then detect the train and can be used to make the train automatically stop at the station or activate a railway crossing barriers or lights.
For more details please see the web page which includes a link to the different reed switches and magnets used in the video.
www.penguintutor.com/projects/...
Also see the following videos on Model Railway Automation:
Details of the full series:
Part 1 - A.C. to D.C. Bridge Rectifier
• Model Train Automation...
Part 2 - Forward or Backwards using a H-Bridge
• Model Train Automation...
Part 3 - Controlling speed using PWM
• Model Train Automation...
Part 4 - Detecting the train with a reed switch
• Model Train Automation...
Part 5 - IoT (Internet of Trains) Controlling a train using a web browser (Raspberry Pi only)
• Model Train Automation...
Contents:
00:00 Introduction
01:11 About the reed switch
02:02 Selection of reed switches and magnets
02:17 Magnets
03:35 Reed Switches
07:31 Summary