Answers
The questions we get most often. Written to be useful even if you never hire us.
What self-service car wash automation actually costs
What automating a self-service car wash actually costs: the equipment, payment acceptance, telemetry and the software — with the ranges named openly.
Modbus: what it is and why your business should care
Plain explanation of Modbus RTU and TCP: how equipment exposes data, the difference between RTU and TCP, and what to do if your device does not support it.
SCADA, CRM and ERP: how they differ and what you need
Plain explanations of the difference between SCADA, CRM, ERP and WMS. What each one is for and why replacing one with another usually ends badly.
What payment terminal software costs
What goes into self-service terminal software: payments, offline operation, till reconciliation. What drives the price up, and why no calculator fits.
Automating invoices, contracts and delivery notes
Why salespeople lose hours to paperwork and what to automate first. A worked example: 196 documents generated by the system with no manual typing.
Selling on WhatsApp: the 24-hour window and lost messages
How the WhatsApp Business API actually behaves: the 24-hour window, templates, and why an "ok" from the API does not mean the customer saw your message.
Raspberry Pi on site: when it is a sound choice
When a single-board computer next to the equipment is sober engineering, and when it becomes a source of night calls. Power, SD cards, temperature, updates.
Inside a self-service car wash terminal
What a car wash terminal is made of: plate recognition, payment acceptance, fiscal receipts, controller link, telemetry. What breaks first and why.
Fiscal receipts from a terminal with no cashier
How a receipt reaches the tax authority from an unattended terminal: who issues it, when, what happens when the link drops, and where the gap usually appears.
Replacing 1C: what to migrate first
The order of migration away from 1C: where to start, what can stay for years, how to avoid stopping the business mid-transition, and where data goes missing.
Unattended payments: what actually breaks outdoors
What fails in an unattended terminal standing outside: note acceptors in frost, dropped links, receipts, reconciliation. From a network that runs today.
SCADA on a budget: when a Raspberry Pi is enough
What monitoring a handful of sites really takes when industrial SCADA is oversized, and where a Raspberry Pi stops being the right answer.
MDB: why your machine does not see the payment
How the MDB bus works inside a vending machine, why a card terminal pretends to be a coin mechanism, what cashless levels mean, and where integrations stall.
ccTalk: why your bill acceptor still speaks this language
How ccTalk works, how it differs from MDB, why a bill validator needs encryption, and what to do when the device takes notes but the system never sees them.
Car wash payments: from the bay controller to reconciliation
How payments work at a self-service car wash — coins, notes, cards and QR — what has to be reconciled every day, and where the revenue quietly leaks.
What it costs to add payments to equipment you already own
What decides the cost of adding card, QR and cash payments to equipment on site: interface, Modbus, MDB, ccTalk, payment routes, fiscal receipts, offline.
Custom system or an off-the-shelf box: an honest comparison
When a boxed product wins, when custom wins, and the third option: a working system adapted to your process. Lock-in, code ownership, support, migration risk.
RS-485 on site: what breaks and why
Why an RS-485 bus works on the bench and fails on site: termination, ground loops, cable length, star wiring, noise, Modbus RTU timing. How to diagnose it.
An IoT/SCADA platform for a small plant: what you need
Seven layers of an IoT/SCADA platform: Modbus RTU/TCP over RS-485, gateway, telemetry, history, alarms, phone. Offline buffering, Raspberry Pi, security, cost.
Telemetry where the link drops for hours
Telemetry where the mobile link drops for hours: store-and-forward, clock drift, deduplication, staleness on the dashboard, alerts that do not cry.
Card payments for vending machines without a cashier
MDB reader, bank terminal or QR: three ways to take cashless payments on a machine, fiscal receipts without a cashier, per-machine reconciliation, offline mode.
Per-device revenue reconciliation: catching shortfalls
Daily reconciliation for car washes, vacuums and vending: three numbers per device that must agree, where gaps come from, how to tell a fault from abuse.
Wero and ENP: what changes for unattended terminals
Europe is building its own account-to-account payment network, ENP and Wero. What it means for car washes and vending, and how to prepare now.
EU PSR: the Council position and unattended payments
On 29 Oct 2026 the EU Council unanimously adopted its PSR position: IBAN–name checks, spoofing liability, phone features for third-party apps. What it means.
Three abuse patterns at unattended machines in the data
Starts without payment, short cash collections, scheduled “breakdowns”: how each abuse pattern shows in car wash and vending data, and why cameras see it last.
ok:true does not mean delivered: request vs result
Why a successful API response only means “accepted”: WhatsApp, a payment terminal and a fiscal receipt as examples, and how to check the actual result.
SCADA dashboard: what the owner should see
A SCADA home screen for the owner, not the engineer: five questions it must answer in ten seconds, what to remove, and how to keep alarms worth trusting.
Who writes the software that runs self-service kiosks
A self-service kiosk is a box; the software behind it makes it a business: take payment, drive the hardware, reconcile the money by morning.