Model Railway Turntable.

A demonstration of my model railway turntable. The turntable is built from a Peco LK-55 kit. It is driven by a stepper motor via a reductions gearbox. Intelligence is provided by an Arduino nano micro-controller.

Stepper motor Radio Spares part no. 440-262
Gear box Radio Spares part no. 336-416
Stepper motor driver X113647 (I can't remember where I got it from)
Micro controller Arduino Nano

Arduino software https://github.com/stubaby49/turntable

The unit is power by 12V dc. There is a 12V to 5V regulator to produce 5V.
The 5V feeds the Arduino and its associated switches and sensor.
The stepper motor is driven by 12V via the stepper motor driver board.