The connection diagram shown here uses the breakout board for the FTDI FT232RL USB to serial IC. Pins 5 – 8 are for USB communication.Ĭonnect the fingerprint reader to the computer via USB-serial converter. User may set the baud rate in 9600 -115200 bps. The first 4 pins are for serial communication with default baudrate of 57600. Though these have no good English documentation, SFG has done a real good work with the demo software (except the bad UI ). Well, for now we have the R305 here, just tested it with the products demo software from SFG. However, the commands for operation can vary from module to module, for which we should have its datasheet. Basically both of these modules work the same way, we can communicate with them using a packet of hex codes in a specific format. R305 and S630 are common modules used for fingerprint scanners, with the aid of a powerful DSP in its core. While biometrics and fingerprint identification has been existing for well over 100 years in some basic form, it is the growth of maker community that made modules like R305 and SM630 so popular.
