Hog Splitter Pro

Buttons

Hog Splitter Pro consists of a controller unit fitted securely into a 3D-printed housing. All buttons are built into the controller unit.

Control	Photo	Typical location / use
Split button		Top edge. Registers a split and jumps history back to the newest rows; in settings, confirms and exits.
Wheel-push		Press the scroll wheel straight in (use a small finger). Opens settings (main screen); in settings, moves to the next page.
Wheel-up		Rock wheel upward. On the timer, brings one newer history row into view. In settings, increases the current value.
Wheel-down		Rock wheel downward. On the timer, brings one older history row into view. In settings, decreases the current value.
Power button		On the side. Press to power on or to turn off from the main screen.
Reset button		Small recessed button; press with a pin for a full reboot (see Power on, off & reset).

Assembly & housing

Removing the timer control unit from the 3D-printed housing

1. Insert a sturdy string (a shoelace works well) through the holes at the bottom of the unit.
2. Pry the locking tab back, just enough for the control unit to clear it, while pulling hard with the string, applying even force straight out of the housing.

The housing is friction-fit and can be difficult to remove.

Re-assembling the Hog Splitter Pro

1. Insert the button pieces as shown. The orientation and layering must be correct or the buttons will not work.

   
2. Insert the timer module into the housing, taking care to use the correct orientation and without disturbing the buttons. When fully inserted, you will hear a click as the locking tab moves into place.

Power on, off & reset

Power on

Press the Power button. The e-paper display starts updating after a short moment while the Hog Splitter Pro boots.

Power off

From the main timer screen, press the Power button. The Hog Splitter Pro shows a power-off screen, then shuts down.

Power Off

Press PWR to wake

Power-off screen

If the battery is under 50%, the bottom of that screen shows Charge recommended beside a plug icon. Display my name in Settings can also add the registered name under the wake line.

Reset

If the Hog Splitter Pro ever misbehaves, use a pin to press the reset button. That forces a full reboot, as if power had been removed.

Taking splits & reading the display

Main readout

Each press of the Split button records a timestamp. The large digits show the elapsed time in seconds between the last two splits. Decimal places for this readout are set in Settings → Main timer precision (tenths, hundredths, or thousandths). There is no separate “reset” for the interval: the next split always defines a new interval versus the previous press.

Long intervals

• Over 59 seconds between splits: the large display shows a dashed placeholder (“too long”).
• Over 20 seconds: the interval is not added to scrollable history (the large readout still updates until the rules above apply).

History columns

The Hog Splitter Pro keeps up to 1000 history rows; older rows drop off after that. How many rows you see at once depends on the Font size setting. How many decimal places appear in each history value is set separately under History precision (tenths, hundredths, or thousandths)—independent of the main timer.

• Small — 9 rows visible
• Medium — 6 rows (default)
• Large — 3 rows
• Huge — 2 rows. At this size, both the main readout and history stop at hundredths even if precision is set to thousandths.

• Times under 5.5 seconds go in the left column as a new row (or start a new paired row).
• Times 5.5 seconds or greater (but still ≤ 20 s for history) go in the right column. If the previous row has a left value waiting for a partner, the new time fills that row’s right cell; otherwise it starts a new row with only the right cell filled.

This lets you pair a “short” and “long” hog line time for the same shot on one history row when they are entered in that order.

Scrolling history

The newest rows are on screen after each split. Wheel-down brings one older row into view and shifts the newest visible row off the top. Wheel-up brings one newer row into view and shifts the oldest visible row off the bottom. Wheel-up does nothing when the newest row is already shown. Wheel-down does nothing when the oldest stored row is already shown. The Split button jumps back to the newest rows.

A small arrow between the columns points toward rows that are off screen (up for newer, down for older). The arrow sits in the gap between the times, clear of the battery indicator.

Physical Split buttons

The 3D-printed housing has two top split buttons. Either can split: both actuate a plunger to the same button on the timer controller unit. A lever mechanism within the buttons is designed to redirect force from the left plunger to the controller button, which is located under the right-side plunger. Because of this, the left button may require slightly more force to actuate compared to the right button.

Idle & auto shutoff

Main timer idle clearing

If there has been no Split button activity for about one minute, the large elapsed display clears to a dashed placeholder (history is not erased). The next split starts fresh timing from that press.

Auto shutoff

In Settings, Auto-shutoff can be set to disabled or to 10 / 15 / 20 / 30 minutes of inactivity. Button activity resets the idle period. After this period of inactivity, the device turns itself off.

Settings

From the main timer screen (not in special boot modes):

• Press Wheel-push to open settings. The first page is Auto-shutoff.
• Wheel-push again cycles pages: Auto-shutoff → Tone volume → Tone pitch → Tone duration → Main timer precision → History precision → Font size → Display my name → About → (wraps to Auto-shutoff).
• Wheel-up / Wheel-down adjust the current page’s value; on tone-related pages, changes are previewed.
• Split button saves all settings and returns to the main timer screen.

Setting reference

• Auto-shutoff — Disabled, 10 / 15 / 20 / 30 minutes.
• Tone volume — Off or five stepped levels (maximum drive is capped to reduce distortion).
• Tone pitch — Five preset frequencies.
• Tone duration — Five preset lengths.
• Main timer precision — Tenths, hundredths, or thousandths of a second for the large elapsed readout only (and for the dashed placeholders when idle or “too long”).
• History precision — Tenths, hundredths, or thousandths for numbers in the history columns only (independent of the main timer).
• Font size — Small (9 history rows), Medium (6), Large (3), or Huge (2). Huge shows at most hundredths of a second.
• Display my name on power off — When set to "On", displays the registrant's name on the power-off screen.
• About Hog Splitter Pro — Shows information about your device, including the version number, serial number, and the registrant's name.

Battery & charging

• Use a standard USB-C source; 1 A adapters are typically sufficient.
• Charge time can be on the order of a few hours from empty.
• A charging indicator may light while the battery is charging.
• Plugging in USB may power the Hog Splitter Pro even when it appears off.

Battery percentage — The on-screen percentage is derived from voltage estimates on this hardware. It can lag until the next full screen refresh, and it may jump or briefly rise when not on charger because of measurement noise and load changes. For critical sessions, start from a full charge shortly before play.

Software updates are installed over Wi-Fi. See how to update the firmware.

Troubleshooting

Screen flickering

Problem: The Hog Splitter Pro screen flickers for a few seconds when the split button is pressed, sometimes showing an inverted display. This may be more common when used in cold environments, such as a curling rink.

Solution: Install the latest firmware update.

Case issues

Problem: One or both buttons do not split, or they are hard to press.

Problem: The control unit does not fit snugly in the housing.

Solution: Please contact us to request a replacement housing.

Name change

Need to change the registrant name on your device? The original purchaser may email us to request a name change, which can be completed over Wi-Fi.

Questions / comments / issues

Contact Trevor Gau.

Email: info@hogsplitter.pro

Web: hogsplitter.pro