2 TWN4 USB Front Reader
2 TWN4 USB Front Reader
2.1 Functional Overview
The TWN4 USB Front Reader is a complete RFID Reader system which can be connected directly to a
USB-A host port. The majority of the circuitry responsible for processing the RFID card information and
executing the module firmware is shielded as shown on Figure 2.1. The TWN4 USB Front Reader also
offers an internal SAM slot and a speaker on board.
The TWN4 USB Front Reader can interact with the User via Bluetooth Low-Energy interface. This devel-
opment pack contains documentation on BLE protocol and API implemented on the module.
The TWN4 USB Front Reader contains a USB high-speed hub. The two downstream ports of the hub are
connecting to the TWN4 module and an additional USB-A port. The additional USB port may be used as
a "pass through", to connect USB devices like memory sticks, to the host system.
Figure 2.1: TWN4 USB Front Reader View Functional
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