UPI controller for milk ATMs and liquid dispensers
A UPI controller turns each payment into an exact volume and keeps the product safe while it waits.
THE CHALLENGE
Cash, tokens and cards need staff, and problems surface late
Milk ATMs and refill stations sell milk, edible oil and liquid detergent by volume into the customer’s own container. They still lean on cash, tokens or prepaid cards that need staff, and operators often find out about an empty tank or a warm compartment only after customers complain.
WHAT IT DOES
What it does for you and your customers
RNDSquare designs the dispensing controller with pump and valve outputs, flow meter input calibrated per product, and a QR display with preset volumes or a customer-entered amount. It supports more than one lane, such as cow and buffalo milk, and reads temperature, tank level and door sensors. We also build the application support: per-lane pricing pushed to all machines at once, temperature logs for food safety records, and a dashboard for dairies and co-operatives.
Accept UPI from any app
The amount paid is converted into the exact volume for that product.
Sound confirmation
The machine announces the payment and starts dispensing.
Instant refund on service failure
If the dispense fails after payment, the customer is refunded automatically.
Hosts receive payments within 24 hours
Dairies, co-operatives and retailers get the day’s sales the next day.
Full application development
Inventory tracking per lane, low-stock and temperature alerts are built for you.
AT A GLANCE
Milk ATM controller in brief
- Products
- Milk, edible oil and liquid detergent, by volume
- Lanes
- More than one, such as cow and buffalo milk
- Dispensing
- Pump and valve outputs, flow meter calibrated per product
- Sensors
- Temperature, tank level and door
- Customer side
- QR display with preset volumes or a customer-entered amount
- Records
- Temperature logs for food safety, per-lane pricing pushed to all machines
UPI APPLICATIONS
Other machines we add UPI to
- UPI payment module for DC fast chargers
- UPI payment module for AC EV chargers
- UPI payments for 2W, 3W and e-rickshaw charging points
- UPI payment for parking boom barriers
- UPI controller for water ATMs
- UPI payment system for vending machines
- UPI payment for laundromat machines
- UPI payment for smart lockers
- UPI payment for self-service kiosks
FAQ
Questions buyers ask us
How does a milk ATM work with UPI?
The customer picks a preset volume or enters an amount, then pays from any UPI app. The controller converts the payment into the exact volume for that product and dispenses it into the customer’s own container.
Can one machine sell more than one product?
Yes. The controller supports more than one lane, such as cow and buffalo milk, with a flow meter calibrated per product and its own price per lane.
How is the milk kept safe?
The controller reads temperature, tank level and door sensors. The application keeps temperature logs for food safety records and sends low-stock and temperature alerts.
When do owners receive the money?
Dairies, co-operatives and retailers receive payments within 24 hours. Each day's collections arrive the next day, with a settlement report.
Building milk ATMs or refill stations that should accept UPI?
Book a technical review. We will look at your lanes, pumps and sensors, and plan the controller with you.