Communicating with R303A fingerprint reader module
I want to use this module in my upcoming project and i am facing difficulty with packet data that has to be sent to the module!!
So i used SFG Demo software and was able to enroll and search for finger prints when i used it for the 1st time !!But now with the same sfg software i am not able to connect it to the pc!!i get an error code saying”Open Device Fail, please check the device address and passward”.I have used max232 ic!!And it dosent show the com port that has been occupied in device manager!!
please help!!!
Thanks in advance!!