i am new to this forum and this is my first post.
i want to build this project. here is what is want to achieve:
1) there will be a sensor, when it is activated it will send a signal to the microcontroller and then the microcontroller will start a timer for 10 seconds.
2) a fingerprint scanner will also be present and if it does not detect a valid finger print within these 10 seconds, a signal will be sent to the microcontroller, which in turn will send an sms using a gsm module indicating unauthorized access. and then the microcontroller will turn off a relay( the relay can be connected to anything...say to turn off a bulb)
3) the relay can then be again turned ON only by a valid finger print scan or a sms by the owner.
i need a detailed help for this project.
i hope i will get all the help that i would need.
Hardware connection
Via serial interface, the Module may communicate with MCU of 3.3V or 5V power: TD (pin 2 of
P1) connects with RXD (receiving pin of MCU), RD (pin 3 of P1) connects with TXD (transferring
pin of MCU). Should the upper computer (PC) be in RS-232 mode, please add level converting
circuit, like MAX232, between the Module and PC.
Serial communication protocol
The mode is semiduplex asychronism serial communication. And the default baud rate is 57600bps.
User may set the baud rate in 9600~115200bps。
Transferring frame format is 10 bit: the low-level starting bit, 8-bit data with the LSB first, and an
ending bit. There is no check bit.
Reset
the r303a already has its own memory to store fingerprints....but i have got a software along with it to store the finger prints...but i want to program the microcontroller to add new fingerprints or delete a finger print....
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