Compact NFC integration with two included antennas
The PN7160 MINI V1 — I2C is a compact 13.56 MHz NFC module based on the NXP PN7160. A six-pin host connector carries power, I2C, interrupt and enable/reset signals, while interchangeable external antennas let you choose the size that suits your enclosure.
Each kit includes the module plus both a 50 × 40 mm antenna and a 25 × 10 mm antenna, each with a 10 cm lead. A six-pin host cable is not included.
Key features
- NFC-A/B/F/V support, including ISO/IEC 14443, ISO/IEC 15693, FeliCa and MIFARE workflows.
- Reader/writer and card-emulation applications, subject to controller firmware and host software support.
- I2C host interface with IRQ and VEN; 100 kHz or 400 kHz recommended.
- 3.3-5.5 V module power input and 3.3 V digital signals.
- Default 7-bit I2C address 0x28; solder pads ADR0 and ADR1 select 0x28-0x2B.
- 26.937 × 20.066 mm PCB with three mounting holes.
- Shared ELECHOUSE Arduino library and Mini-specific ESP32-S3 setup guide.
Specifications
| Controller | NXP PN7160 |
|---|---|
| Operating frequency | 13.56 MHz |
| Supply input | 3.3-5.5 V at the module connector |
| Host logic | 3.3 V; SDA, SCL and IRQ are not 5 V logic signals |
| Host connection | 6-pin, 1.25 mm pitch connector; SDA, SCL, IRQ, VEN, VCC, GND |
| Antenna connection | ST1.0 2-pin connector (preferred) or IPEX4; use only one at a time |
| PCB size / thickness | 26.937 × 20.066 mm / 1.6 mm nominal |
| Module thickness | 5.5 mm |
| Mounting holes | 3 plated holes, Ø2.11 ±0.10 mm |
| Operating temperature | -25°C to +85°C, non-condensing |
| Weight | 20 g per item |
| SKU | PN7160_MINI_I2C |
Reading-performance reference
| Antenna size | MIFARE S70 | ISO/IEC 15693 | Availability |
|---|---|---|---|
| 25 × 10 mm | 2.9 cm | 6.5 cm | Included |
| 50 × 40 mm | 5.0 cm | 14.0 cm | Included |
| 100 × 160 mm | 5.6 cm | 12.0 cm | Available separately |
Maximum reading distances measured at 5 V using the ST1.0 antenna connection and a 10 cm antenna lead, with the card parallel to the antenna. Test cards: MIFARE S70 85 × 55 mm PVC and ICODE SLIX2 ISO/IEC 15693 85 × 55 mm. Values are reference measurements, not guaranteed minimum distances; card type, alignment, nearby metal and the final enclosure affect performance.
Connection and software
Use a 3.3 V logic host. The six-pin connector is ordered 1 SDA, 2 SCL, 3 IRQ, 4 VEN, 5 VCC, 6 GND; the dot identifies Pin 1. For an ESP32-S3 example, use SDA GPIO8, SCL GPIO9, IRQ GPIO4 and VEN GPIO5, as described in the Quick Start.
Use the same ELECHOUSE PN7150/PN7160 Arduino library as the standard PN7160 module, with this Mini module’s wiring. Select the matching 3.3 V or 5 V power preset in the software. The Mini Quick Start shows the normal DetectTags example at 400 kHz.
Connect only one antenna at a time. The ST1.0 connection is recommended. With IPEX4, longer coaxial leads can reduce reading distance. Keep the antenna away from metal where practical and check performance in the finished enclosure.
Package contents
- 1 × PN7160 MINI V1 — I2C module
- 1 × 50 × 40 mm antenna with 10 cm lead
- 1 × 25 × 10 mm antenna with 10 cm lead
No six-pin host cable or host controller is included. The 100 × 160 mm antenna and custom antenna sizes are available separately; contact ELECHOUSE to discuss your requirements.
Documentation and downloads
- Online documentation and downloads
- Product datasheet (PDF)
- User manual (PDF)
- 3D model (STEP)
- Board outline (DXF)
- Shared Arduino library and examples
- Detailed library API
A separately manufactured PN7161 version can be discussed by email at service@elechouse.com. It is not an option in this listing.
