SD-FPM10A uses 1.0mm FPC socket which has 5 pins. The pin definition is as follows:
1 is VCC It’s between 3.6V and 5.5V
2 is GND
3 is TXD serial port sending
4 is RXD serial port receiving.
5 is NC floating
SD-FPM10A uses standard TTL uart serial to communicate. The default baud rate is 57600 bps which can be adjusted. It is necessary to add MAX232 when connected to PC RS232 port.
When the module is powered, the fingerprint collect window shines which means powered successfully. If not, please check the power supply.
4．Fingerprint Module Temperature
Fingerprint module uses DSP running at 120MHz. In working status, the chip feels hot. It passed the serious testing and there is no problem. Do not worry. Shut down when it doesn’t work to reduce power consumption.