System architecture
The UNO-mini is part of the Nayax OEM POS Solution, a three-component system that handles the full payment stack so you can focus on your application’s user interface and business logic. The three components are:- UNO-mini: The cashless reader hardware. Handles contactless card reading and EMV processing at the device level.
- EMV Core: Client software that runs on the kiosk controller (Android, Linux, or RTOS). Serves as the integration layer between your application, the payment processor gateway, and the UNO-mini.
- Nayax Core: Pre-integrated cloud service for remote management of terminals and clearing transactions worldwide.
Specifications
The following table lists the main hardware specifications.| Parameter | Value |
|---|---|
| Power | 5–14 VDC; 0.7 W idle, 3 W peak |
| CPU | Arm 32-bit Cortex-M33 with TrustZone and enhanced security features |
| CPU speed | 160 MHz |
| CPU memory | Flash: 2 MB; RAM: 786 KB |
| External memory | Flash: 8 MB |
| Host communications | USB 2.0 FS; UART TTL |
| Contactless EMV | EMVCo L1 v3.x compatible; full NFC support including card emulation |
| Security | 2 AES coprocessors (one with DPA resistance); public key accelerator (DPA resistant); true random number generator (NIST SP800-90B compliant) |
| SAM interfaces | 1 x micro SAM |
| LEDs | 4 green (EMV) |
| Operating temperature | -35°C to 70°C |
| Humidity | 10%–90% non-condensing |
| Dimensions (H x W x D) | 49.5 x 49.5 x 10.8/13.4 mm |
| Main connector | Molex 5054330871, 8 pins |
| Additional connector | 1 x micro SIM (3FF) |
| Regulatory | FCC, CE, UL, RoHS, TQM |
| EMV certification | Levels 1, 2, and 3 |
Supported payment methods
The UNO-mini accepts all major contactless payment methods:- Debit and credit cards
- Mobile and NFC contactless payments
- Prepaid cards and closed-loop payment solutions
Next steps
Mechanical Integration
Mount the UNO-mini in your hardware enclosure and configure serial number display.
Get Started with EMV Core
Install the EMV Core SDK and connect to the UNO-mini from your host application.