USB Dome Button
The “USB Dome Button” is a palm switch with a large mushroom dome. It connects to a workstation or PC via a USB cable. A press on the button sends a keystroke to the workstation. You can configure which keystroke that is. You can use the USB Dome Button to perform any command on the workstation: launch a presentation, start a show, pause or resume playback, function as a “Quiz Buzzer”, or any other action.
The dome is available in several colours.
The USB Dome Button is recognized by the PC as a “keyboard” —with only a single key. Microsoft Windows (and other operating systems) have intrinsic support for these devices. The USB Dome Button runs out of the box, no driver is needed. The button is fully compatible with “Game Show Presenter” and similar applications.
The USB Dome Button is a robust “emergency switch”-style button, for indoor and outdoor use. The sealing USB connector allows for splash-proof cable connection. Cables are available up to 4.5 metres. A “debounce” circuit avoids false triggering and an ESD protection filter on the USB input guarantees a reliable operation.
As mentioned above, the PC or workstation recognizes the USB Dome Button as a keyboard with one key. The key to transmit to the PC is configured via a free configuration utility, see the Downloads section. By default, the USB Dome Button transmits the key “1”.
In addition to single-key transmissions, the USB Dome Button supports “macro commands” which allow to transmit a sequence of key strokes to the PC, including key combinations with “Alt”, “Ctrl” or “GUI” shift modifiers. With a macro, a press on the button can start an application or open a web browser on a specific URL.
Multiple Dome Buttons may be attached to a PC at the same time, with each Dome Button configured to transmit a different key code.
|Dimensions||Base: 85 × 85 mm, height: 45 mm, dome diameter: 94 mm; total height: 101 mm.|
|Colour||Base: black & grey; dome: red, black or yellow.|
|Mechanical lifetime||> 106 operations|
|Operating temperature||-25 °C to +40 °C.|
|Degree of protection||IEC/EN 60529: IP65, IP67|
|Actuation force||20 to 25 N.|
|USB connector||Mini-B, buccaneer (sealed IP68).|
|USB interface/profile||USB “HID”, keyboard profile, configurable key code.|
|Power supply||Powered through the USB connection.|
|Debounce criterion||20 ms stable period.|
|Switch latency||50 ms maximum, 35 ms average.|
Accessories and variants
- Key configuration utility (Microsoft Windows), version 1.2 (104 KiB; 2017-02-08)
- The utility to set the key to transmit on a button press, as well as other options.
- Button Lights utility (Microsoft Windows), version 1.2 (118 KiB; 2017-01-30)
- For buttons with a LED indicator, you need this utility to control and configure the indicators. This utility can be used stand-alone or in combination with quiz master software.
- USB Dome Button Specifications (PDF file)
- Detailed documentation and specifications of the USB Dome Button.