 Hello and welcome back to the SD25 NFC Workshop. In this segment, we will cover NFC Dynamic Tags. Before we start, be sure that you have the following items, SD25DV Discovery Kit, SD25R3911 Discovery Board, SD25R3911B GUI Software. The SD phone is optional, but if available, please install the SD25 NFC TAP app. You will also need two USB cables, one with mini USB and one with micro USB connector. You can use this combination of hardware. The SD25DV Discovery Kit powers via either a PC or USB power supply. And an NFC phone with SD25 reader app installed. Or you can use this variant if an NFC phone is not available. You will need to have a PC to communicate to the SD25R3911B reader board. This is a preferred setup for this workshop. First we are going to look at Dynamic Tag. Dynamic Tag is a memory with two interfaces. You can access it via RF wirelessly or I2C wire. Think of it as a dual ported memory. If I2C is not used, the Dynamic Tag acts no different than a typical passive RFID tag. No power or battery needed. The Dynamic Tags family have three main series. M24SR supporting ISO 14443A with RF speed up to 106KBit per second. Memory sizes range from 2KBit to 64KBit and protected by 128-bit passwords. The other series are SD25DV and M24LR which both support ISO 15693. The main differences between M24LR and SD25DV are availability of the 256-byte Volatile memory buffer. 1MHz I2C speed, field detection and 64-bit passwords. In this workshop, we will focus on the SD25DV series.