This page approaches programmable LED text displays from the operational side rather than the promotional one: how to work out what your board should say by counting what your staff repeat, how tall the characters have to be for the distance your queue actually forms at, what the difference between a single-colour and a full-colour strip really buys, and what it takes to keep one running when the manufacturer is 250 kilometres away in Győr.
LED scrolling sign in Koprivnica — manufacturing, installation, quote
Croatia · 250 km from our plant in Győr
Ask anybody who works behind a counter in Koprivnica what they say most often and you will get four sentences: when we close, whether the item is in stock, which door to use, and what today's price is. A scrolling text board becomes worth buying at the point where those four sentences are costing measurable time. That is a real situation at an outpatient desk in the county hospital, at a Danica zone gatehouse where drivers turn up without a delivery slot, at a pharmacy near Zrinski trg after six in the evening, or in a workshop office where the phone rings all afternoon with the same enquiry. Understood that way the board is not advertising at all. It is a device for answering a question before it is asked, and that framing changes what you buy, where you hang it and how you decide afterwards whether it was worth the money.
A week of tally marks before a single quotation
Count what is repeated, then size the board
The cheapest piece of research in this whole exercise costs a sheet of paper taped beside the till or the gate window. For five working days, whoever is there marks a stroke each time they answer one of the recurring questions and writes down anything new. At the end of the week you have a ranked list of the sentences your business repeats, with numbers attached. That list does two things. It tells you whether a board is justified at all, because a question asked six times a week is not worth hardware, while one asked sixty times a day plainly is. And it gives you the actual content, in your own words, before anybody has sold you a size. Nearly every disappointing text display we are asked to replace was bought before this list existed.
Character height against the distance the queue forms at
A working ratio, and the module steps underneath it
The rule of thumb worth remembering is that a character wants roughly one centimetre of height for every four metres of reading distance, and slightly more if the reader is moving. A board read from six metres across a waiting area therefore needs characters of about two centimetres; one read from twenty metres across a yard needs five or more, and that drives the whole size of the unit. Because the strip is built from the same 32 by 16 centimetre panels as everything else we make, the length arrives in fixed steps rather than to order. Work out the character height first, then the number of characters your longest genuine message needs, and the panel count follows from those two numbers. Doing it in the other order produces a board that is the size somebody had in stock.
The gatehouse board and the shopfront board
Two jobs that look identical on a datasheet
A board at a plant entrance, of the sort a Podravka or Belupo goods yard needs, is read by a driver who has stopped, at three or four metres, in a vehicle with the window half open, and it has to survive dust, washdown and a decade of weather. A board in a shop window is read from the pavement through glass, competes with daylight reflected off that glass, and lives in a heated room. The consequences run in opposite directions. The gate unit is an outdoor build with proper cable glands and a mounting that tolerates vibration from passing lorries. The window unit is a sealed build too, not because it gets wet but because a bright window position demands the higher output that comes with the exterior specification. Ordering an interior strip for a sunny window is the most common and most expensive misunderstanding in this product category.
Single colour or full colour, decided on the evidence
What the additional money actually buys
A single-colour board is cheaper, draws less, and is completely adequate for the four sentences that came out of your tally sheet. Opening hours, a queue number, a price, a direction: none of these are improved by colour. If the list from your week of counting is entirely operational, buy the cheaper board and put the difference into a larger character height, which will do more for legibility than any colour ever will. Full colour earns its place when the board carries product images, a logo, or content that changes with a season and needs to look designed. It is also the right choice if the same strip will later be asked to do promotional work. What it should not be is a default, chosen because the price list put it at the top.
Getting text into the unit, and who holds the password
Wi-Fi, network cable, a stick, and two people rather than one
The controller accepts content over Wi-Fi, over a wired network connection or from a USB stick, and in a building where cabling is awkward the wireless route is what makes the installation straightforward. Messages can be entered as a list with times attached, so a price that changes at midday or a notice that only applies on Thursdays does not need anybody to be present. The failure we see most is organisational, not technical. One person learns the software, that person leaves or goes on holiday, and the board carries a stale message for a season. Two people should hold the access from the day of handover, and the credentials should be written down somewhere that is not that person's phone. This is the single cheapest reliability measure available to you.
Running cost, spares and a service journey of 250 kilometres
What keeps a board alive in its seventh year
Consumption for a text strip of ordinary size is modest and the average is far below the peak, because a scrolling message lights a small fraction of the diodes at any moment. The realistic long-term costs are a driver at some point, a seal, and cleaning the front face so that dirt does not do the work of a dimmer. Every delivery includes spare modules. That is deliberate: a module swap on a text board is within reach of a competent local electrician given the handover notes, and it converts a fault from a wait for a vehicle into an afternoon's work. Warranty is one or two years by build. When a visit really is needed, the 250 kilometres from Győr into the Podravina are a same-day journey and appear as their own line rather than being smuggled into the equipment price.
