ELECHOUSE PN7160 NFC RFID MODULE User Guide

ELECHOUSE PN7160 NFC RFID MODULE

Quick Startup with Raspberry Pi interface board

Required items

• Raspberry Pi [1] running raspbian distribution.

Hardware setup

Connection

• PN7160 ——–Raspberry PI 4
• SDA #3 SDA
• SCL #5 SCL
• IRQ #16 GPIO23
• VEN #18 GPIO24
• VDD #1 3.3V PWR
• VANT #2 OR #4 5V PWR
• GND #6 GND
• DWL #22

Software setup
Use Raspbian (https://www.raspberrypi.org/software/operating-systems/). Guidelines to set up a Linux environment on Raspberry Pi can be found here: https://www.raspberrypi.org/documentation/installation/installing-images/). Below is the step-by-step procedure run from the Raspberry Pi to add software support for PN7160:

Enable I2C interface

1. Run command
2. Use the down arrow to select “Interface Options”
3. Arrow down to “P5 I2C”
4. Select “yes” when it asks you to enable I2C
5. Use the right arrow to select the button

To verify the I2C interface is enabled, enter the following command ls /dev/i2c. The Pi should respond with “/dev/i2c-1” which represents the user- mode I2C interface that is connected to the PN7160.

Install the necessary tools

Execute the command:sudo apt-get install autoconf automake lib tool git.

Clone Linux lib nf cnci library repository
Execute the command git clone https://github.com/NXPNFCLinux/linux_libnfc- nci.git -b NCI2.0_PN7160

Configure the library
Execute the commands: cd linux_libnfc-NCI

• bootstrap
• configure

Set the library to map I2C interface (only for OM27160A1EVK)
Edit linux_libnfc-NCI/conf/li bnfc-n xp.conf file to update NXP_TRANSPORT and NXP_NFC_DEV_NODE settings as shown below:

TRANSPORT Type

• 0x00 – I2C /SPI for noraml nxpnfc driver
• 0x01 – Not Used, kept to align with Android code
• 0x02 – ALT_I2C
• 0x03 – ALT_SPI

NXP_TRANSPORT=0x02

•  NXP HW Device Node information
• NXP_NFC_DEV_NODE=”/dev/i2c-1″

Build and install the library
Execute the commands: make sudo make install export LD_LIBRARY_PATH=/usr/local/lib

To make this last setting permanent, run the following command
echo “export LD_LIBRARY_PATH=/usr/local/lib” >> .bashrc Run the demo application (built and installed together with the library during the previous step) To simply display all data collected from remote NFC device (Peer, reader/writer or card), run the demo application in “poll mode” executing the command: nfcDemoApp poll For more details about the demo application modes execute the command: nfcDemoApp –help For more detailed information about the demo application, but also for additional example applications, please refer to [2].

Safety Information

1. Product Datasheet
   Look for a datasheet for the PN7160 module. This document often contains detailed technical specifications and safety information.

2. User Manual
   Check if there is a user manual or user guide provided by ELECHOUSE for the PN7160 module. This document may include safety instructions, handling guidelines, and other relevant information.

3. Manufacturer’s Website
   Visit the official website of ELECHOUSE or the specific product page for the PN7160 module. Manufacturers often provide downloadable documentation, including safety information, on their websites.

4. Contact the Manufacturer
   If you cannot find the information you need in the provided documentation, consider reaching out to ELECHOUSE directly. They may have a customer support or technical support team that can provide the necessary safety information.

Troubleshooting

1. Check Power Supply
   Ensure that the module is receiving the correct power supply voltage and current as specified in the datasheet. Verify the connections to the power supply and make sure there are no loose or disconnected wires.

2. Antenna Connection
   Confirm that the antenna is properly connected to the module. Check for any damaged or disconnected antenna wires.

3. Communication Interface
   Verify the communication interface (e.g., I2C, SPI, UART) between the PN7160 module and your microcontroller or host device. Ensure that the wiring and communication settings are correct.

4. Firmware and Software Configuration
   Check the configuration of the PN7160 module. Ensure that the settings align with your application requirements. Update the firmware of the module if newer versions are available.

5. Environmental Factors
   Consider environmental factors that may affect RFID communication, such as interference from other electronic devices or physical obstacles. Test the module in different environments to identify potential issues.

6. Check for Error Codes
   If the module provides error codes or status registers, consult the datasheet or documentation to interpret these codes. Investigate the meaning of any error codes and address the underlying issues.

7. External Components
   If external components (such as pull-up or pull-down resistors) are required, ensure that they are properly connected and have the correct values.

8. Update Software Libraries

9. If you are using software libraries to interface with the PN7160 module, make sure you are using the latest versions.
   Check for any updates or bug fixes related to the software libraries.

10. Debugging Tools
    Use debugging tools, such as oscilloscopes or logic analyzers, to examine communication signals and identify any anomalies.

11. Documentation and Support
    Refer to the datasheet, user manual, or any troubleshooting documentation provided by ELECHOUSE.

If needed, contact ELECHOUSE support for assistance. They may be able to provide guidance on specific issues.

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