Signals and servos controlled by an Arduino Nano | Modelling a GWR branch line | Episode 16

After a little track weathering, it's time to install some motorised signals for the model railway. Here's what I used:

* Arduino Nano v3
* PCA9685 servo driver board
* Arduino Nano expansion board
* SPST switches
* Ratio GWR signals kit
* 9g servos
* Servo extension cables
* AdaFruit servo driver library https://github.com/adafruit/Adafruit-...
* Easing library https://www.arduino.cc/reference/en/l...
* easings.net
* PointsController Github repo https://github.com/mafu-d/arduino-poi...

Frontington and Backwoods is (or will be) a OO gauge model railway layout, depicting a fictional GWR branch line terminus, set in the rolling South Devon countryside not too far from Kingsbridge, at some point probably in the late 1930s.

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Music by audionautix.com

0:00 Introduction
0:21 Painting the base board
1:03 Weathering the track
1:55 Signal box walkway
2:25 Servo brackets
3:33 Signal control wire
4:57 Switch panel
7:10 Fitting switches
7:49 Electronic components
10:22 Wiring and soldering
11:30 Coding v1
13:25 Testing on the workbench
14:21 Mounting on the layout
14:51 Testing on the layout
15:52 Coding v2
16:30 End result