Point counting system

In the annual scout race ‘Ranger Challenge’ there are 25 individual stations, which each have to keep track of the individual scores of 35 scout teams. This involves a large amount of paper scoring sheets which then have to be manually pasted into a rather large Excel sheet. To optimize the workflow of counting and calculating the teams scores an electronic point management system is devised.

The system consists of 25 individual point counting units, which can log the point that each team score on a given station. These 25 units is there after collected and the logged points can be uploaded to a main central unit, which adds all the points together into one file.

The counting units are operated using a simple turn and click interface using the red knob on its side. It is controlled by an Arduino Nano, which stores the points even when powered down.

The main unit interfaces with the counting units via a I2C interface. The main unit is controlled by a Raspberry Pi Zero W, which can interface with a PC over wifi to extract the add points or individual files.