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+# 4531-1 - Manual Points
+
+To motorize a track switch (manual point) build at least one of the build in the image below. for more information about the build see the [model.ldr](model.ldr) file.
+
+You also need a [Large Powered Up Motor](https://rebrickable.com/parts/22169/motor-large-powered-up/72/). The motor can be attached to both sides of the track switch by pushing the axle through and placing the pins on the other side.
+
+The initial idea of the model was from this [YouTube video by The Technic Gear LEGO Reviews](https://youtu.be/qWDMIOtVFSY).
+
+![Motorized Lego® Track Switch](model.png)
+
+## Software
+
+The software is written in such a way that you can connect up to 4 track switches to each of the ports of the Powered Up Technic Hub. It doesn´t matter which port you use and how manu you use.
+
+At first start the ports are checked for a motor and if present it is calibrated.
+
+The buttons on the remote switch the following ports:
+
+| Button             | A | B | C | D |
+|--------------------|---|---|---|---|
+| Left +             | X |   |   |   |
+| Left -             |   | X |   |   |
+| Right +            |   |   | X |   |
+| Right -            |   |   |   | X |
+| Left middle (red)  | X | X |   |   |
+| Right middle (red) |   |   | X | X |
+| Center (green)     | X | X | X | X |
+
+The switch can also be turned over manualy. The software is aware of its position before it will switch over the next time.
+
+The LED on the hub will represet the battery voltage according to the table below.
+
+| Voltage           | Color  |
+|-------------------|--------|
+| Above 9.0 Volt    | Green  |
+| Above 8.1 Volt    | Yellow |
+| Above 7.2 Volt    | Orange |
+| 7.2 Volt or below | Red    |
+
+## Advise
+
+Make sure your manual point(s) turn over smoothly or the motor can not provide the power to turn it over.
+
+## Disclaimer
+
+LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this project.