Controller interface
MDB cashless can be cleaner when the controller supports it; pulse, relay, serial, or custom wiring can add integration work.
Guides
Cashless retrofit cost
How much does a vending machine cashless retrofit cost?
There is no single cashless retrofit price. Cost depends on the controller interface, whether the existing reader stays, the payment path, wiring and installation, data scope, and sample testing. A photo-based interface check is needed before a meaningful quote; board price alone does not determine the project cost.
Interface-based scopeReader or MDB pathSample testingRollout quote
Part of MDB Vending Machine API Gateway
Key facts
What to know before asking for a cashless retrofit price.
No fixed price
Cost depends on interface, reader or board, installation, payment integration, data scope, and sample.
Interface first
MDB, pulse, relay, serial, or custom wiring changes the integration effort.
Reader decision
Keeping a supported reader can reduce scope; replacing an old reader can improve reliability.
Pilot before fleet
One machine sample reduces rollout risk and makes the quote repeatable.
No fixed price is quoted before the machine interface and scope are checked.
Cost drivers
Four things that change the retrofit cost.
Budget depends on the machine and the scope, not only the board price. The same cabinet can need a different path.
Reader and payment path
Keeping a supported reader, adding an MDB cashless board, using QR/API, or replacing the reader changes hardware and integration scope.
Installation and wiring
Connector changes, antenna placement, power, enclosure, and site labor vary by machine and country.
Data and testing
Telemetry, fault reporting, payment result handling, and sample testing add scope beyond the board itself.
Cost drivers
What changes a cashless retrofit quote?
The board is only one line. The machine interface, payment path, installation, data scope, and testing usually decide the total.
| Cost driver | What changes the cost | How to reduce risk |
|---|---|---|
| Controller interface | MDB cashless, pulse, relay, serial, or custom wiring. | Send controller and harness photos; confirm the path on a sample. |
| Reader / board | Keep the reader, add an MDB board, use QR/API, or replace the module. | Confirm reader support and payment responsibility first. |
| Installation | Connector, power, antenna, enclosure, and site labor. | Use a repeatable install checklist and photos. |
| Payment integration | Existing PSP, wallet, QR flow, or QuLink QR option. | Define callback, timeout, refund, and reconciliation rules. |
| Data scope | Heartbeat, vend result, fault, telemetry, or dashboard. | Start with a minimal event set and expand after the pilot. |
| Sample / rollout | One machine versus fleet, firmware profile, and support. | Prove one machine before quoting the fleet. |
This is a scoping framework, not a price list. The final quote depends on the machine and agreed sample criteria.
Before you request a quote
Clarify these four points first.
Machine and controller
Send the model, controller photos, MDB version if known, and existing payment module.
Payment responsibility
Decide who confirms payment: QuLink QR, your PSP, an existing reader, or a wallet/app.
Required result
Define vend success, failure, timeout, refund or retry rules, and the data you need back.
Site and volume
Confirm country, installation responsibility, sample quantity, and rollout plan.
Quote process
From photos to a scoped sample.
Send machine photos
Machine front, controller, reader, model label, and connectors.
Confirm the interface
Define MDB, pulse, relay, serial, or custom controller behavior.
Scope the sample
Agree board, wiring, payment callback, data fields, and test criteria.
Quote the rollout
Price the repeatable configuration after the sample path is proven.
What affects the quote
A useful quote starts with the machine, not a price list.
What QuLink can scope
- Scope an MDB cashless, QR/API, or relay/pulse retrofit for the existing machine.
- Include payment callback, vend result, fault, and telemetry requirements in the sample.
- Quote a repeatable board, wiring, and firmware profile after validation.
- Work with the existing reader or recommend replacement when it is unsupported.
What is not included
- A fixed price before the machine interface is checked.
- Payment acquiring, settlement, or wallet balance.
- Installation labor or certification in every country.
- A guarantee that a specific controller or reader will work without a sample.
Not the right fit if the quote is premature
- You need a binding price without machine photos or interface details.
- The machine has no identified controller, reader, or payment path.
- You expect one price to apply to every vending machine model.
Scope inputs
What we need to price the project.
- Machine interface
- MDB cashless, pulse, relay, serial/RS485, or custom controller
- Payment path
- existing reader, MDB cashless board, QR/API trigger, or replacement module
- Scope inputs
- wiring, enclosure, firmware, payment callback, result data, sample test
- Project mode
- single-machine quote, pilot, fleet rollout, OEM customization
FAQ
Cashless retrofit cost questions.
Why is there no fixed cashless retrofit price?
The controller interface, existing reader, payment path, wiring, installation, data scope, and sample testing vary by machine. A photo-based check is needed before a meaningful quote.
Is keeping the existing reader cheaper?
Keeping a stable, supported reader can reduce scope because the retrofit can focus on the machine-side control or data path. If the reader is old or unsupported, replacement may be more reliable.
Does MDB cashless cost less than relay or pulse?
Not necessarily. MDB can be cleaner when the controller supports it, but total cost depends on wiring, payment integration, data requirements, and testing.
What is included in a sample quote?
A sample quote typically covers the board, firmware profile, connector or wiring scope, payment callback or control logic, and agreed test criteria. Installation and certification are scoped separately.
What should we send for a quote?
Machine model, controller and reader photos, country, payment flow, target vend or relay action, data requirements, and expected quantity.
Project RFQ
Send a machine photo. We help identify the board, interface, and next test step.
Send the vending machine model, controller and reader photos, country, payment flow, data requirements, and expected quantity so we can scope a meaningful quote.
A good first message
If you are unsure about the exact interface, send what you have. Photos often answer more than a long spec.
- Machine type and target country
- Machine photo, board photo, or wiring photo
- Action after payment or API command
- Need data upload? expected quantity?
Fastest first step
- Send a machine photo
- Describe the action after API or payment
- Tell us if data upload is needed
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