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1 Products availableLeading Manufacturer, Supplier & Retailer of Heartbeat Sensor, Finger Print Sensor and FINGERPRINT SENSOR WITH INTERFACE BOARD.
Control 4 relays through the RF keypad with range of around 100 meters. Board needs 12V DC for operation and the on board relays are capable to switch on DC and well as AC mains load like light and fan.
Features
Input: Two ways to trigger the function of fingerprint sensor
Outputs(Response):Two ways to monitor output response after a function is executed
Types of function
There are namely three functions you can call for the fingerprint sensor. We will see each in brief.
Add(Enroll) Function:Adds a fingerprint to database and return a byte of newly added ID. Return values are from 0x00 to 0xFE. In case of error like no finger placed, return code is 0xFF. Here 0xFF means error executing function
Search Function:When a finger is put and search funtion is called, it returns a matching ID if found in its existing memory. Return values are from 0x00 to 0xFE. In case of error like no finger placed, return code is 0xFF. Here 0xFF means error executing function.
Empty Function:When you wish to empty all fingerprint data stored on sensor you can use this function. After executing this function, you will get 0xCC as OK or 0xFF in case of error.
Application Example
We will use an example of AT89S52 MCU to interface but can be any MCU like AT89C51 or AVR or PIC. Since the sample code is in C language. The logic will remain same across all C compilers.