flashtree FPM11A Green Light Optical Fingerprint Reader Sensor Module 6 Pins for Arduino Mega2560 UNO R3

Fingerprint Scanner works great. But - awesome bonus is - you can wire Blue (Touch VCC) and Yellow (Touch Signal High) - and then wrap your call to getFingerprintID(); inside a digitalRead(SENSOR_PIN) == HIGH. Of course, in setup(), you also need pinMode(SENSOR_PIN, INPUT); (and at the top of your program, define what pin will be you SENSOR_PIN... for me, I used 4 - since that would be right next to other pins being used: 2 & 3). const int SENSOR_PIN = 4; This way - your device is only scanning for prints when you touch it... and the LEDs stay off when you are not touching it.

Worse luck ever, I order tow of this and none of them work. BLUE and RED to 5v and Black to Ground, Green RX (GPIO15), White TX (GPIO14).. Teste on Rapsberry pi 3, 3b+, 5 no luck.

This was the third fingerprint sensor we bought for a project, and it worked like a marvel. The 6-pin wire plugged easily into our breadboard and Arduino Uno R3, no soldering required. The fingerprint sensor itself was very efficient, and worked well with our project ( a fingerprint-based Arduino attendance system). Note that only four out of the six pins need to be used for most projects - wires red, green, white and black (no blue/yellow). Five Stars!

Never worked out of the box and they probably wont reach out hopefully this review will make it

These worked great on a lighting project I am working ob

Used it for Arduino, works well

Worked exactly as I hoped it would.

I needed this for a class for school....works just fine no complaints here

Not tested yet but for the first start all goes good