Skewered Fencing

A Beautiful, Modern Scoring Box

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Quick Start Guide

Download the Quick Start Guide (pdf) that comes with new boxes. Print double-sided, trim along the dotted lines, and fold in 4. It will fit in the shipping box under the scoring box.

Physical buttons

There are three buttons on the box: a red button and two white buttons.

The red button has three functions:

The two white buttons navigate and adjust the configuration menu: the left button moves up (or decreases a value) and the right button moves down (or increases it). Together with the red button (which acts as OPT/select inside the menu), this lets you configure the box on its own, with no remote needed. Outside the menu the white buttons do nothing.

The two white buttons may also be held down when the box is powered on to immediately enter firmware-update mode as a recovery mechanism.

Configuration Menu

Long press the red button on the box or long press the OPT button of a paired remote to enter the configuration menu. Once in the config menu, use OPT to select items and CLR to exit items or CLR again to leave the config menu.

You can also operate the menu using only the box's own buttons, with no remote: the red button acts as OPT (select an item, then select again to finish editing it) and a long press leaves the menu, while the left white button moves up or decreases a value and the right white button moves down or increases it. This lets you configure the box — including enabling Bluetooth and setting the Strip ID — without a remote.

The configuration items are:

Remote

Hover or tap on the buttons below to learn what they do.

Remote ID (Strip ID)

Each remote stores the Strip ID that it is configured for. Boxes and remotes are initially configured as "Strip 1". Scoring boxes will only respond to signals from remotes that have the same Strip ID as the scoring machine. To change the ID for a given remote, press and hold the SET button and PLUS button on the opposite corner for 5 seconds until the green LED flashes several times quickly. Then enter a two digit strip id (01 - 99). The green LED will flash quickly again when the new ID is set.

Charging

The remote is powered by an internal rechargeable battery. The battery should last 1-2 months of typical usage. When necessary, recharge the battery by connecting it to a standard USB-C charger.

Pairing a Remote (Setting the Strip ID)

To pair a remote with a customized strip ID (see above) with a box, do the following:

Bluetooth

The box continuously broadcasts its state over Bluetooth so nearby devices can follow the bout. Turning on BT Enable in the Bluetooth menu additionally lets up to three devices connect directly to the box at once. A connection is one of two kinds:

Pairing is secured with an on-screen PIN, and is only accepted while the box is in the Bluetooth menu, so a stray device nearby can never quietly pair with your box. Up to 5 paired devices are remembered across power cycles.

Pairing a device

Use the Skewered Fencing app for Android to connect to a box (an iOS version is in the works). To pair:

  1. On the box, enter the config menu and open Bluetooth, then set BT Enable to Yes.
  2. In the app, select your box to connect. The box displays a six-digit PIN.
  3. Enter that PIN in the app to complete pairing. The box shows a "BT REMOTE" banner once the device connects.
Stay in the Bluetooth menu until pairing completes — pairing requests are rejected otherwise.

Bluetooth menu items

If wireless goes offline

Scoring never depends on Bluetooth — a wireless problem only affects the Bluetooth link, never the bout. If the wireless radio ever gets stuck, the connected dot turns into a slowly breathing red marker. Simply open the config menu and the box restarts the radio for you; the restart is fast enough to be seamless, leaving you in the menu with wireless back online.

Updating the scoring machine firmware

To update the firmware of the scoring machine, follow these steps:

  1. Download the desired firmware version to your computer. Do not alter the name of the firmware file.
  2. Connect a micro-USB cable from your computer to the micro-USB port at the bottom of the back of the machine. If the scoring machine is powered off, it will turn on when the USB cable is connected.
  3. Enter the menu and select "Update" and then "Yes".
    Note: If necessary, there is also a recovery mechanism for entering firmware update mode: hold down the two white buttons when powering on the box.
  4. On the computer, a USB drive named "RPI-RP2" should show up.
  5. Copy the firmware file to the "RPI-RP2" drive. Once it finishes copying, the drive will automatically disconnect and the scoring machine will restart with the updated firmware.
  6. In some cases, the saved configuration will be reset after an update. Press and hold the same button on the scoring machine (the button further from the power switch) for 1 second to enter configuration, then press "OPT" on the remote twice to register the remote. You may also have to navigate the config menu to adjust the screen rotation.

Firmware releases