Template: Capacitive Fingerprint Reader B Arduino guide
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Revision as of 11:45, 14 October 2021 by Waveshare-eng11 (talk | contribs) (Created page with "==Connection== {|class="wikitable" ! Fingerprint Reader (B) !! Arduino UNO !! Description |- |VCC||3.3V/5V|| Power input |- |GND||GND||Ground |- |TXD||10||UART data output |-...")
Connection
| Fingerprint Reader (B) | Arduino UNO | Description |
|---|---|---|
| VCC | 3.3V/5V | Power input |
| GND | GND | Ground |
| TXD | 10 | UART data output |
| RXD | 11 | UART data input |
| RST | 9 | Reset pin (low active) |
The examples provided are based on the Arduino UNO board.
Testing
- Install Arduino IDE to your PC
- Download the Demo code and find th Arduino code (.../Capacitive-Fingerprint-Reader-B-Code\Capacitive-Fingerprint-Reader(B)-Code\Arduino\Finger_Test)
- Open the Finger_Test.ino with IDE
- Build and upload the codes to your Arduino UNO board
- Open the serial monitor of the IDE
- Input the corresponding commands to test the function
- CMD0:Check if the fingerprint is connected normally
- CMD1: Check if a finger is detected
- CMD2:Add a fingerprint
- CMD3:Detect fingerprints
- CMD4:Verify fingerprint (1:1)
- CMD5: Verify fingerprints
- CMD6:Check the ID which is not be used (minimum number)
- CMD7:Check the number of fingerprinted added