NTAG I2C Demoboard is a free utility app developed by NXP Semiconductors for Android devices. It is a versatile tool that can be used for several purposes. The app allows you to change the LED color on the NTAG I²C demonstration board, test the speed of download and upload with NTAG I²C based on your NFC device, and read and change the chip configuration.

The app is designed to be user-friendly, making it easy for anyone to utilize the features of the NTAG I²C Demoboard. With this app, you can customize the LED color on the NTAG I²C demonstration board to your preference. Additionally, you can measure the speed of data transfer between your NFC device and the NTAG I²C chip. Finally, you can read and change the configuration of the chip, making it more suitable for your specific needs.

Overall, NTAG I2C Demoboard is a must-have tool for users who own an NTAG I²C chip and want to explore its full potential. The app is easy to use and provides several features that allow you to customize and test the capabilities of the chip.