Project scoping
Use this checklist before requesting a board sample. It covers machine interface, payment trigger, machine action, data, deployment, and what to send first.
Prefer a printable version? The PDF includes the same compatibility matrix plus wiring notes.
Compatibility matrix
Use this table as a planning aid. Rows marked Pending sample are not verified on a real machine yet; we add a date only after a sample test. Model names are product families, not final SKUs.
| Machine / scenario | Interface | QuLink model family | Protocol / version | Verified capability | Verification date | Notes / limits |
|---|---|---|---|---|---|---|
| Vending machine (MDB) | MDB | MDB-to-Cloud Gateway | MDB cashless; version confirmed on sample | Interface documented; vend command/result pending sample | Pending sample | Confirm MDB 4.x version, cashless wiring, and slot mapping. MDB 4.0 or earlier needs a firmware review. |
| Laundry cabinet (coin/pulse) | Pulse | Pulse / Relay Controller | 12V/24V pulse input; width and polarity confirmed on sample | Interface documented; pulse count and timed session pending sample | Pending sample | Confirm pulse width, polarity, coin input, and relay channel. Do not assume a fixed pulse range. |
| Massage chair (RS485) | RS485 | Machine Data Bridge | Modbus RTU or custom serial; profile confirmed on sample | Interface documented; status and fault read pending sample | Pending sample | Confirm slave ID, baud rate, register map, and whether session status is exposed. |
| Power bank cabinet (relay) | Relay | Door Lock Relay Controller | Dry-contact relay; lock voltage confirmed on sample | Interface documented; remote unlock pending sample | Pending sample | Confirm lock voltage, channel count, return/door sensor, and fail-safe behavior. |
| Self-service coffee machine (MDB + pulse) | MDB + pulse | MDB-to-Cloud Gateway + Pulse Relay | MDB cashless plus pulse; controller profile confirmed on sample | Interface documented; drink selection/start pending sample | Pending sample | Confirm whether the machine supports product selection or only a fixed brew cycle. |
| Smart locker (relay + door sensor) | Relay + sensor | Door Lock Relay Controller | Dry contact + door sensor; sensor type confirmed on sample | Interface documented; unlock and door status pending sample | Pending sample | Confirm sensor type, lock voltage, channel count, and rental/return rules. |
Last reviewed: 2026-10-23. No row is marked verified until a real machine test is completed. Exact model, connector variant, and firmware profile are confirmed on the quote and sample. Do not treat this table as a compatibility guarantee.
Model pages: MDB-to-Cloud Gateway · Pulse / Relay Controller · Machine Data Bridge · Door Lock Relay Controller
QuLink's MDB gateway is built for MDB cashless integration; we confirm the exact MDB version (including 4.2/4.3) during the sample check. Machines on MDB 4.0 or earlier need a firmware and interface review before we mark the profile verified.
Yes, the pulse controller is specified for 12V and 24V pulse inputs; we confirm pulse width, polarity, and coin-input behavior on the machine before marking the profile verified.
Because we only mark a row verified after a real machine test. We do not publish unverified combinations as supported. The interface family may be documented, but the machine-level action and data path still need a sample.
The table shows product families; the exact model, connector variant, and firmware profile are confirmed on the quote and sample. This avoids claiming a variant that has not been checked against your machine.
Use the closest row as a starting point, then send machine photos and wiring notes; it may match a listed family or need an OEM review. The table is a planning aid, not a compatibility guarantee.
Project fit
Integration model
Most delays come from missing interface photos, unclear payment ownership, or undefined failure behavior. The checklist makes those decisions explicit before a sample is built.
Workflow
Use the PDF to collect the machine and project details in one place.
Machine front, controller, payment module, wiring, and model label.
Company, country, machine model, quantity, and target sample date.
Share the completed checklist through the RFQ form or WhatsApp.
API example
The exact command fields depend on machine interface, firmware profile, and whether payment or your own app triggers the action.
POST /v1/devices/SAMPLE-01/commands
{
"command": "query_status",
"source": "project_scoping"
}
Project RFQ
Send the completed checklist or machine photos. We will help map the interface, board family, and sample test path.
If you are unsure about the exact interface, send what you have. Photos often answer more than a long spec.
FAQ
Yes. Download it and send the completed items through the RFQ form or WhatsApp.
Send what you have. Machine photos and the target action after payment are the most important starting points.
No. It prepares the sample test by making interface, payment, and data requirements explicit.
Yes. Send machine photos and wiring notes; we can help identify the likely interface.
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