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  • Author Author: colporteur
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Raising the Bridge...Automation with Arduino

colporteur

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This design challenge presented itself at an opportune time. The model railroaders are putting the finishing touches on a bridge that requires some automation.

On the other side of the bridge is a turn-about that the tug (A) needs to reach in order to change direction. I have been asked to create the following automation sequence.

Tug triggers sensor (A) to indicate the bridge needs to raise.

Gate (B) lowers indicate no traffic to enter bridge

Bus (C) stops.

Ramp (D) re-aligns to make room for bridge movement

Bridge (E) raises.

I suspect a button (no letter on the image) on the turn-about side will be required to indicate when the tug has completed it transition and the bridge can be restored.

My initial assessment is two inputs and four outputs.

Inputs

Tug Trigger

Operations Trigger

Outputs

Motor control bridge gate

Power interruption bus

Motor control bridge ramp

Motor control bridge

I am hoping to use a Arduino Uno for the project. If you have an extra to spare you can throw it my way.

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