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Customer Display

A second screen at the till: receipt lines and total for the customer, paired with the bridge PIN

7 min read Open this screen in the demo
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Customer display

Customers can see what the cashier adds to the ticket and check the total before paying. Use an Android tablet at the checkout or a second Windows monitor.

This screen shows the current ticket. For promotional slides on a TV in the venue, use the separate Digital signage feature.

What you need to get started#

  • A POS and a selected location in your account.
  • An Android tablet or phone with Cenaly Customer Display, or a Windows computer with the display application. On the till PC, you can also use a second monitor and the bridge's /customer page.
  • The Hardware Bridge on the till PC. A separate tablet or PC must share a local network with the bridge.
  • Access to the admin panel to approve the application's device-code sign-in. See QR codes and devices.

Connect a tablet at the checkout#

1. Sign in to the application#

Open the Android application. It displays a code and QR for approval in the admin panel. Approve it as a device for the intended location; if there are several locations, check the selection.

If you already have a code created in the admin panel, use the option for an existing admin-issued code. Do not enter the bridge pairing PIN in its place.

2. Prepare pairing on the till PC#

Open the bridge's status page or its Windows tray icon. In the Wi-Fi devices section, click the device-pairing button (the bridge page is currently in Russian: «Устройства по Wi-Fi» → «Сопрячь устройство»). A PIN appears together with the bridge address.

The tablet must be able to reach that computer on the local network. Use the address shown by the bridge; network connections normally use port 9101.

3. Verify the certificate code and confirm the PIN#

On Android, open Pair with the till's bridge. Select a suggested bridge if available; otherwise fill in Bridge address and Port, then PIN, and press Pair.

Compare the displayed certificate code with the one on the till PC. Confirm only if they match: this checks that the tablet is connecting to your bridge.

The PIN is valid for 10 minutes and works for one device only. If it expires, generate a new one on the till PC.

4. Check a ticket#

Add an item to a test ticket on the POS and change its quantity. The tablet should update the line and total. Clearing the ticket brings back Cenaly.

If no lines appear, long-press the display to open settings and check the location and connection source. The table below helps distinguish a lost connection from the normal idle screen.

A second monitor on the till PC#

Using the Windows application#

  1. Connect the monitor and open the display application on the till PC.
  2. Sign in with a device code and select the location.
  3. In settings, select the bridge on this PC as the source and choose the monitor. A bridge on the same PC does not require network PIN pairing.
  4. Check full-screen mode and enable startup with Windows if needed. By default, the application chooses a non-primary monitor.

Open settings with a right-click, a long press or Ctrl+,. If the display runs on a separate Windows PC, use network pairing with the bridge address, PIN and certificate verification, as for a tablet.

Using the bridge page#

On the till PC, open /customer on the running bridge, move the browser window to the second monitor and maximize it. This is a local bridge page, not a public website address.

In the admin panel, open Hardware (/hardware), check the Customer display device role, then enter test text in the hardware checks block and press the 📺 icon to send it to the display. Then check an actual test ticket on the POS to verify the complete path from sale to screen.

What appears on the screen#

State What the customer sees
Ticket has items One line per item: quantity, name and amount
Service charge or tip is present Separate lines for positive amounts
Total The final line in large type
Ticket comes from the web POS Discount, coupon and delivery lines when present
The web POS has the QR payment window open A line “Scan the QR code on the register screen”; the QR itself is shown on the register screen
Empty ticket The Cenaly idle screen
Connection is lost The last received ticket may remain visible

The display shows lines sent by the POS. Customers cannot edit the ticket on this screen.

Bridge and cloud connections#

The applications prefer the local bridge. If it is unavailable, the web POS has a cloud fallback. When the bridge reconnects, the application returns to the local source.

On cenaly.ru there is no cloud channel: the bridge is required. Native Android and Windows POS applications also do not publish lines to the display's cloud channel; use the bridge for them.

The connection indicator distinguishes the local bridge, cloud and no connection. A visible old ticket does not mean the connection is working.

Limitations#

  • Display applications are available for Android and Windows; there is no iOS version.
  • There are no idle ads or slides, payment or receipt QR codes, customer loyalty bonuses or customer-controlled language selection.
  • Discount, coupon and delivery lines depend on the POS: the web POS sends them; native POS applications do not send that entire set.
  • A newly connected screen may remain idle until the next ticket change.
  • The display does not confirm payment; check payment status on the POS.

Troubleshooting#

Symptom Cause What to do
Only Cenaly is visible The ticket is empty or the screen connected after its last change Change a test ticket on the POS and check the selected location
The window is not on the customer's monitor Another monitor is selected Open Windows settings with Ctrl+, and select the monitor
Ticket is frozen Connection was lost; the last text remains Check the indicator, bridge and network, then change the ticket to test again
Application asks for the bridge PIN Pairing is missing or needs renewing Obtain a new PIN from the bridge page or tray, verify the certificate and pair again
PIN is rejected It expired, was used or was entered incorrectly Generate a new PIN and check the intended till PC's address
Certificate codes differ A different bridge was selected or its certificate changed Do not confirm; compare the address and code directly on the intended PC
Cloud mode shows nothing cenaly.ru has no channel, or the source is a native POS Connect the display to the bridge
Android offers pairing again after restart The cloud-only choice is not stored as a permanent setting Pair with the bridge for regular use; for a supported cloud setup, select cloud again

Frequently asked questions#

Can I use a tablet without a cable to the till?#

Yes, over the local network with bridge PIN pairing. The tablet must be able to reach the till PC; account sign-in alone does not establish the local channel.

Does a second monitor on the same computer need pairing?#

No. The Windows application can use this PC's bridge, and a browser can open its /customer page. A PIN is needed for a separate device connecting over the network.

Can I show ads while no customer is being served?#

The till display shows Cenaly when idle. Use separate Digital signage for venue advertising.