UPI payment modules for machine makers
A UPI payment module lets your customers scan, pay with any UPI app and get served straight away. Your machine takes the money and acts on it without anyone on site.
THE CHALLENGE
Unattended machines lose sales at the payment step
Unattended machines across India still lose sales to coin jams, cash leakage and app sign-ups their customers never finish.
EV chargers, parking barriers, water and milk ATMs, vending machines, laundromats, lockers and kiosks all have the same need: let a customer scan, pay with any UPI app, and get served straight away. A UPI payment module adds that to the machine itself, so it can take money and act on it without anyone on site.
WHAT IT DOES
What it does for you and your customers
RNDSquare designs the custom hardware and builds the application support for manufacturers who want UPI inside their machines. On the hardware side, we design the payment module around your machine: a dynamic QR display or printed QR, 4G or Wi-Fi, a speaker, and the interface your controller needs, whether that is a relay, coin-pulse emulation, RS485/Modbus, MDB or OCPP. You can license the design and build it in your own factory, or buy ready-made modules from us. On the software side, we build the full application: the payment backend, refunds, settlement, a dashboard and mobile app for machine owners, and inventory and usage tracking.
Accept UPI from any app
Every transaction gets its own QR code with the exact amount.
Sound confirmation
The machine announces each payment, so customers know it went through.
Instant refund on any service failure
If the machine fails to deliver after a payment, the customer is refunded automatically.
Hosts receive payments within 24 hours
Machine owners get their money the next day, with a settlement report for every machine.
Full application development
Owner dashboard, mobile app, pricing control, inventory tracking and alerts are all built for you, in your brand.
ALREADY IN SERVICE
The same payment engine runs on RIOD EV chargers
Dynamic UPI on RIOD EV chargers
The same UPI payment engine already runs on RIOD's EV chargers. Its launch in November 2026 was covered by Economic Times.
AT A GLANCE
UPI payment modules in brief
- Payment
- Any UPI app. A dynamic QR code per transaction with the exact amount
- Hardware
- Dynamic QR display or printed QR, 4G or Wi-Fi, and a speaker
- Machine interface
- Relay, coin-pulse emulation, RS485/Modbus, MDB or OCPP
- Refunds
- Automatic refund when the machine fails to deliver after a payment
- Settlement
- Owners receive payments within 24 hours, with a report per machine
- Application
- Payment backend, owner dashboard and mobile app, pricing, inventory and usage tracking, in your brand
- Build options
- License the design and build in your own factory, or buy ready-made modules
APPLICATIONS
Machines we add UPI to
UPI payment module for DC fast chargers
HMI integration or a separate payment module over OCPP, with prepaid sessions by amount or energy.
Read more →UPI payment module for AC EV chargers
A compact module with a QR per connector, resident and visitor rates, and monthly statements.
Read more →UPI for 2W, 3W and e-rickshaw charging
Multi-socket controllers that switch and meter every socket, over 4G or LoRa.
Read more →UPI payment for parking boom barriers
Exit-lane units and pay stations that open the barrier once the driver has paid.
Read more →UPI controller for water ATMs
Pay per litre, with flow metering and TDS, tank and UV lamp monitoring.
Read more →UPI controller for milk ATMs
Exact volume per payment, multiple lanes, and temperature logs for food safety.
Read more →UPI payment system for vending machines
MDB or coin-pulse payment modules, with inventory tracking per product.
Read more →UPI payment for laundromat machines
One QR per washer or dryer, live machine status and campus reports.
Read more →UPI payment for smart lockers
Pay and open, with pricing by locker size and duration and battery backup.
Read more →UPI payment for self-service kiosks
UPI on your own kiosk screen, with printed tickets and receipts.
Read more →FAQ
Questions buyers ask us
What is a UPI payment module for machines?
A UPI payment module is hardware that lets an unattended machine accept UPI and act on the payment by itself. It shows a QR code with the exact amount, announces the payment and tells the machine to deliver. RNDSquare designs the module around your machine and builds the application behind it.
Which machine interfaces can the module use?
The module connects through the interface your controller needs: a relay, coin-pulse emulation, RS485/Modbus, MDB for vending controllers or OCPP for EV chargers. We design the interface as part of the project.
What happens if the machine fails after the customer pays?
The customer is refunded automatically. If the machine fails to deliver after a payment, the refund starts without anyone on site.
When do owners receive the money?
Machine owners receive payments within 24 hours. Each day's collections arrive the next day, with a settlement report.
Can we build the UPI modules in our own factory?
Yes. You can license the design and build it in your own factory, or buy ready-made modules from us. Either way we build the payment backend, refunds, settlement and owner apps.
Building a machine that should accept UPI?
Book a technical review. We will look at your machine, its controller and how it connects, and plan the payment module and application with you.