Device health
Heartbeat, last-seen time, online/offline status, power, or network state where the hardware exposes it.
Guides
Vending machine data
What data can a vending machine report?
A vending machine can report heartbeat, vend result, faults, usage, and optional sensor data only when the controller or interface exposes those signals. MDB, serial/RS485, relay, pulse, and sensors provide different data, and inventory or sales detail is not guaranteed. Confirm the available fields on a sample.
HeartbeatVend resultFault eventsOwn backend
Part of Machine Data Upload IoT Board for Self-Service Equipment
Data layers
Four layers of vending machine data.
Start with the operational decision you need to make. The machine interface determines which layer can be collected reliably.
Transaction events
Vend success, failure, timeout, slot or product, amount, payment reference, and timestamp when the controller provides them.
Service events
Faults, door state, temperature, jam, reader drop, or controller alarms when the machine provides the signal.
Usage and stock signals
Pulse counts, meter values, sensor data, or stock events when available from the controller or added sensors.
Before you connect
Check these four data sources.
Controller interface
Confirm whether the machine exposes MDB events, serial/RS485 frames, relay state, pulse counts, or sensor inputs. Available data differs by interface.
Event definitions
Define what counts as vend success, failure, timeout, device ID, slot, payment reference, and timestamp.
Connectivity
Check 4G coverage, SIM policy, antenna placement, local network availability, and offline behavior.
Backend ownership
Decide where the data goes, who owns the schema, how long it is retained, and who receives alerts.
Data path
From machine signal to backend event.
List the decisions
Start with the operational questions you need to answer, not with every possible data point.
Map the signals
Confirm which events or values are actually available from the controller, payment module, or sensors.
Define the payload
Agree on event names, field types, timestamps, device identity, retries, and idempotency.
Test one machine
Verify normal events, offline behavior, duplicate handling, reconnect, and alert delivery.
Where QuLink fits
Machine-side data collection, not a closed dashboard.
What QuLink can do
- Read available MDB events, serial/RS485 frames, relay state, pulse counts, or sensor inputs.
- Report heartbeat, vend result, fault, usage, and optional sensor data to your backend.
- Keep the existing vending controller and payment reader in place for a pilot.
- Send data to your own API, dashboard, data platform, or maintenance workflow.
What it does not replace
- A closed monitoring portal or mandatory SaaS subscription.
- Payment acquiring, settlement, or wallet balance.
- Data that the machine or controller does not expose.
- A guaranteed cellular coverage fix at the site.
Not the right fit if
- The machine exposes no usable data source and cannot be instrumented.
- There is no backend, dashboard, or operational process to receive the data.
- You expect full inventory data without a controller or sensor source that provides it.
Interfaces and limits
What determines the available data.
- Machine interface
- MDB events, serial/RS485, relay state, pulse input, sensor input
- Data sources
- Controller, payment module, sensors, meter, or added I/O
- Transport
- HTTPS webhook, HTTP API, or MQTT depending on the project
- Project mode
- data audit, telemetry pilot, dashboard integration, OEM profile
FAQ
Vending machine data questions.
Can every vending machine report sales data?
No. The available data depends on the controller, payment module, and interface. A machine may report vend events but not product-level inventory.
What data can MDB provide?
MDB can expose cashless and vend-related events when the controller supports them. The exact fields, timing, and failure behavior are confirmed on a sample.
Can I get inventory data?
Only when the controller, planogram, or added sensors provide a stock signal. Do not assume inventory data is available from MDB alone.
Can the data go to our own backend?
Yes. QuLink can send events to your API or dashboard; field names, transport, frequency, and retries are defined per project.
Do I need to replace the vending controller?
Often no. If the controller exposes usable events or a supported interface, the project can start with a data bridge or MDB gateway and a sample test.
Project RFQ
Send a machine photo. We help identify the board, interface, and next test step.
Send the vending machine model, controller photos, available events or data points, and the decisions you need the data to support.
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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