Same software protocol as R305 with many improvements
Difference Between R305 (Old) and R307 (New)
|Storage Capacity (Fingerprints)||250||1000|
|Finger Detect Output||No||Yes|
R307 Fingerprint Module consists of optical fingerprint sensor, high-speed DSP processor, high-performance fingerprint alignment algorithm, high-capacity FLASH chips and other hardware and software composition, stable performance, simple structure, with fingerprint entry, image processing, fingerprint matching, search and template storage and other functions.
The R307 fingerprint module has two interface TTL UART and USB2.0, USB2.0 interface can be connected to the computer; RS232 interface is a TTL level, the default baud rate is 57600 , can be changed, refer to a communication protocol ; can And microcontroller, such as ARM, DSP and other serial devices with a connection, 3.3V 5V microcontroller can be connected directly. Needs to connect the computer level conversion, level conversion note , embodiments such as a MAX232 circuit.
Fingerprint module board marked with 3.3V - 2 contacts short circuit, you can use DC3.3V .
Suitable for fingerprint lock, fingerprint safes and other purposes.
|1||5V||Regulated 5V DC|
|3||TXD||Data output - Connect to MCU RX|
|4||RXD||Data Input - Connect to MCU TX|
|5||TOUCH||Active Low output when there is touch on sensor by finger|
|6||3.3V||Use this wire to give 3.3V to sensor instead of 5V|
USB Cable Connections are 5V/D+/D-/GND (Optional)
Note: We test the product before shipping. We do not provide help related to programing. All details and protocol are given in download.
There is no warranty on the module. These can easily get damaged with wrong polarity or high voltage given to it. So be careful before power on. Internal LED does not come or stay on all the time, It only comes on when you give command to read fingerprint.