29126

The Fingerprint Scanner is useful for biometric locks, facility access control systems, personal identification

systems.

Features

● Onboard high-speed processor for fast

identification

● High-accuracy optical sensor and

commercial fingerprinting algorithm

provide a solid performance

● Supports any microcontroller with UART

● Memory: Built-in (extensible)

● Anti-wearing: 1 million times

● Anti-electrostatic: 150KV

● Fingerprint capacity: 1000 captures

● False acceptance rate: <0.001% (on security level 5)

● False rejection rate: <0.1% (on security level 5)

● Input time: <0.5s

● Matching time: <0.5s

● Matching modes: 1:1 and 1:N

● Security level: 1-10 (supports customization)

● Approximate dimensions

○ PCB : 1.8 x 1.1 in (45.7 x 28.2 mm)

○ Camera : 2 x 0.9 x 1 in (50 x 23.2 x 25 mm)

○ Ribbon cable: 7.3 x 0.7 in (186 x 17 mm)

Getting Started

The Fingerprint Scanner will need to be used with a microcontroller or computer capable of TTL-level UART

serial communication at 19,200 bps.

Connect the Camera module to the PCB module using the ribbon cable. Both the PCB and camera modules

have ribbon cable connectors on them. The ribbon cable connector is grey, tan, or brown with a black

latch. The black latch sticks out on both sides of the connector.

1. Using the tabs on the sides, gently pull the latch slightly away from the body of the ribbon

connector cable on both the PCB and Camera modules.

2. Insert the ribbon cable into one of the connectors with the blue tab up and the metal connections

down toward the module.

3. Push the latch back into the body of the ribbon connector.

levels of your microcontroller.)

3. Connect to the RXD and TXD pins to the UART or designated GPIO pins of your microcontroller.

PBASIC is available for the BASIC Stamp 2 microcontroller.

See the Downloads and Additional Resources links on the Fingerprint Scanner product page: go to

www.parallax.com and search 29126.

Pin Definitions and Ratings

sending commands serially through a UART interface. The command interface: 19,200 bps, 1 start bit, 1

stop bit, no parity (8N1).

Commands sent from the microcontroller (master device) to the Fingerprint Scanner must be in the

following formats:

Where:

Command

: One of the defined command bytes

Param1, Param2, Param3

: Command parameters

Checksum

: XOR checksum of bytes 2-6: (Byte1 ^ Byte2 ^ Byte3 ^ Byte4 ^ Byte5 ^ Byte6)

When the command packet is received, the module will respond with a similarly formatted 8 byte packet:

Command

: One of the defined command bytes

Value1, Value2, Value3

: XOR checksum of bytes 2-6: (Byte1 ^ Byte2 ^ Byte3 ^ Byte4 ^ Byte5 ^ Byte6)

following values: