Frequently Asked Questions
Product Selection
- Which NFC module is best for Arduino?
- For most Arduino projects, start with PN532 V4. It is the easiest overall choice in the ELECHOUSE lineup.
- Which NFC module is best for Raspberry Pi or Linux?
- In most cases, choose PN7160. If Apple ECP is required, use PN7161.
- Which NFC module has the strongest reader performance?
- ST25R3916 is the better fit when reader performance is the main priority.
Documentation and Support
- Where can I find getting-started documentation?
- See the module-specific documentation pages such as PN532 V4 Documentation, PN7160 / PN7161 I2C Documentation, PN7161 I2C and MINI SPI Documentation, and ST25R3916 Documentation.
- Can PN7160 and PN7161 use a 3.3 V RF supply?
- Yes. VANT can use 3.3 V or 5 V when the software PMU/TXLDO preset matches the connected voltage. This is not automatic. Arduino/ESP32 users need ELECHOUSE library source version 3.1.2, commit
10a1cb2or later; Linux uses separate NXP middleware configuration. See the full power and wiring guide. - Do you provide comparison pages?
- Yes. Start with PN532 vs PN7160 vs ST25R3916 or browse the Compare section.
- How do I contact ELECHOUSE for technical or sales questions?
- Use the Contact page for inquiries.
OEM / ODM
- Do you support OEM / ODM projects?
- Yes. ELECHOUSE provides OEM / ODM support for customers who need custom hardware, firmware adaptation, antenna changes, packaging, or production support. See OEM / ODM.
- What information should I prepare before contacting ELECHOUSE for an OEM / ODM project?
- Please prepare your target product or project requirement, expected quantity, market / region, and any technical or commercial constraints already identified.
After-Sales
- Where can I read the after-sales policy?
- See After-Sales Policy.
Related Pages
RFID & NFC Module Selection Guide
Not sure which module fits your project? See the full comparison with protocol support, interface options, and use case guidance in our RFID & NFC Module Selection Guide.