Purchased a fingerprint scanner and using it with R3 UNO, I've uploaded the enroll sketch, have the SFG demo software running.
The sensor is hooked up Red to 5V, Black Gnd, White to digital 0 and green to digital 1. When I connect the Uno up to the laptop via USB port and start suppling voltage to the FP sensor, I can see one flash, thus thought it was function correctly. opened up SFG demo software and tried to open device to set it to the same comm port as the UnO, com15, but no sucess got the following message:
open device fail please check password and device address, is displayed on SFG demo applcation. Checked the voltage that is been inputted to the sensor to ensure it was making a good connection with the arduino and was measuring 4.8v at the connector on the optical sensor. is there anything that I'm overlooking.