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Capacitive Fingerprint Sensor Kit (BMCOM) BMA92K222

US$21.00

Out of stock

Product ID

BMA92K222

The BMA92K222 is a capacitive fingerprint sensor kit that can store and identify up to 100 fingerprints and supports UART interface. The product includes one breakout board, one fingerprint sensor BM92S2222-A, and one cable to connect the senor to the breakout board.

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DESCRIPTION

The BMA92K222 has the same functions and specifications as the BM92S2222-A. The difference between them is that the BMA92K222 uses a breakout board and a LDO IC HT73L33 to transfer the BM92S2222-A’s pins to match BMCOM and can directly connect to BMduino development boards, such as BM53A367A.
You can use the product with other development boards, such as Arduino UNO, as well.

The BM92S2222-A has built in a Holtek 32-bit MCU, the HT32F12364, and algorithm to complete high-speed fingerprint sampling, template file establishment, identification and other operations.

The BM92S2222-A has a built-in touch key IC as well. When a finger touches the metal frame of the fingerprint sensor, the build-in touch key IC changes its output signal level. Reducing standby power consumption by supplying power to the fingerprint sensor after detecting the signal level change from the touch key IC.

PRODUCT FEATURES

Input voltage: 3.3V~5.5V
Operating current: 40mA @5V
Standby current: <30μA @5V
Built-in 32-bit MCU HT32F12364
Number of fingerprints: 100
- Identification time: < 1 second (100 fingerprints)
- False Acceptance Rate (FAR): < 0.001%
- False Reject Rate (FRR): < 1%
- FEffective area of the fingerprint sensor: 9.6 x 9.6mm
- Fingerprint image size: 192 x 192 pixels (resolution: 508 dpi)
- Fingerprint template: 512 bytes
- 1:1 verification (verify whether the pressed finger is the assigned ID or not)
- 1:N identification (identify the ID of the pressed finger from the enrolled fingerprint database)
Warm-up time: <100ms
Interface: UART (default baud rate: 57600bps)
Dimension: breakout board 27 x 17.02 x 7.5 mm / sensor 33.49 x 20.53 x 6.23 mm
Net weight: breakout board 2g / sensor 3.9g
Product includes: fingerprint sensor BM92S2222-A x1, breakout board x1, cable x1

HARDWARE OVERVIEW

PIN DESCRIPTION

Pin	Pin name	Function
1	Keyout	Sensed a finger touch: output low Otherwise, output high
2	RX	UART: RX
3	TX	UART: TX
4	VDD	Power supply: 3.3V~5.5V
5	GND	Ground
6	5V	Power supply: 3.3V~5.5V (sensor)
7	OTG_DP	USB-DP reserved pin
8	OTG_DM	USB-DM reserved pin
9	USART_TX	UART: TX
10	USART_RX	UART: RX
11	Keyout	Sensed a finger touch: output low Otherwise, output high
12	TVDD	Power supply: 2.0V~5.5V (touch key IC)
13	GND	Ground

RESOURCES

Application: Capacitive Fingerprint Identification Module, including reference, PCB layout, example program, schematic, etc.
MCU : Holtek HT32F12364, 32-bit Arm^® Cortex^®-M3 MCU, including datasheet, package information, etc.