Capacitive Fingerprint Sensor / Scanner (UART, 80 Fingerprints) Shipping:2-4 Weeks there are four LEDs that'll

there are four LEDs that'll help if you ever need to debug your XBee: RX

Pitch: +/- 0-90° or +/- 0-180°

so this pin can be left disconnected

Relay Shield for Arduino V2

Pan-Tilt HAT pinout

Capacitive Fingerprint Sensor / Scanner (UART, 80 Fingerprints) Shipping:2-4 Weeks there are four LEDs that'llThis capacitive fingerprint sensor supports fingerprint capture, image processing, fingerprint storage, fingerprint comparison, and so on. Taking ID809 high performance processor and semiconductor fingerprint sensor as the core, the sensor adopts built in IDfinger6. 0 algorithm, which can complete all fingerprint identification work independently. The product supports UART communication. When working with the Arduino library, it can easily realize