Line Device v4.0
For In/Out v3.0, please visit this page instead.
This page has the latest up-to-date information about the Line Device. First, there is a quick setup guide for the Line Device in pdf format for the Line Device.
The Line Devices assists the Net Device(s) the same way the line umpires assist the chair umpire. It provides better accuracy to the In/Out system. The calls are still made and decided by the Net Device(s). The Net Device "inputs" the information sent by the Line Device.
The latest version of the Line Device firmware is 2024-09-09. You imperatibvely need the corresponding 2024-09-09 Net Device firmware, available here in order to flash the Line Device with the latest version. Read the last section "Firmware upgrade" at the bottom of this page for more information.
Hardware
The Line Device is composed of only one piece. It has an ON/OFF slide button and two side buttons to navigate the UI. There is no touchscreen.
At the bottom of the device, the anti-slippery pads can be rotated to get better stability especially in windy conditions. A rubber sleeve is added for better protection.
There are two hardware versions of the Line Device:
| Line Device | Info |
|---|---|
 |
V3.0 and V4.0 Shipping starting February 2021 and December 2024 Device is light blue. |
 |
V2.0 Shipping starting September 2019 Device is white. |
Tennis vs. Pickleball
You can put the Line Device in tennis (default) or pickleball mode. During boot, when the "Please Wait" screen is shown, press the two side buttons at the same time once. You will then be presented with the following screen:
Chose your used sport. If pickleball is selected, the background screen will turn blue. You will also be presented by the next following screen:
Chose "No" unless you have a fixed installation.
Software for baseline
You need to install the two line devices as shown here (see the next section for more information):
When the Line Device boots, a "Please Wait" screen is shown.
During the first 5 boots, the following information screen is shown:
On the preview screen, align the device with the baseline and press the button that points towards the net.
Court Installation with 2 Line Devices (baseline)
| 2 LINE DEVICES (SINGLE): Best configuration | 2 LINE DEVICES (SINGLE): Configuration OK |
|---|---|
| With only one v2.0 Net Device, put the Line Devices on the same side | This configuration is still OK (try to put the Line Devices in the back of the sun) |
 |
 |
Firmware upgrade for pickleball only, via the smartphone App v4
For tennis, the firmware of the Line Device v4 doesn't need to be updated for the moment (as of August 2024). There is no need to do this procedure for tennis. This procedure is required only for pickleball.
It's possible to upgrade the firmware of a device v4.0 via the smartphone App. Go to the "Upgrade Line Device" section via the top right menu in the App.
- 1) Click "Net Device" to connect to the Net Device.
This page is to upgrade the Line Device but the upgrade firmware comes from the Net Device. This is why you need to connect to the Net Device.
- 2) Click "Line Device" to connect to the Line Device. The Line Device needs to be on.
You can have multiples Line Devices started at the same time. They all will be upgraded at the same time.
- 3) Click "Install" to install the latest firmware to the Line Device (transmitted from the Net Device).
