- 描述
描述
Fingerprint Scanner – TTL (GT-521F52) 指紋掃描模組 美國 SparkFun 原裝進口
Fingerprint Scanner – TTL (GT-521F52) 指紋掃描模組 指紋掃描儀真棒！為什麼在你的手指尖上有一個右鍵時使用一個鍵？不幸的是，它們往往不可靠或難以實施。現在不再了！ADH-Tech的這款出色的GT-521F52指紋模塊通過TTL串口進行通信，因此您可以輕鬆將其嵌入到您的下一個項目中。模塊本身通過板載光學傳感器和32位ARM Cortex M3處理器讀取和識別指紋，完成所有繁重工作。
要開始使用，只需發送相應的命令，然後將手指按在閱讀器上三次，即可註冊要存儲的每個指紋。指紋掃描儀可以存儲不同的指紋，打印數據庫甚至可以從本機下載並分發到其他模塊。除了指紋“模板”，打印的分析版本之外，您還可以檢索指紋圖像，甚至從光學傳感器中提取原始圖像！
該模塊是GT-521F32的升級版本，可以存儲驚人的3,000種不同的指紋！它能夠使用串行接口進行360°指紋識別和下載/上傳模板。此外，GT-521Fxx系列的分辨率為450dpi，錯誤接受率<0.001％，錯誤拒絕率<0.1％，而只需要<1.5秒即可識別出獨特的指紋！
該模塊體積小，易於使用傳感器周圍的四個安裝孔進行安裝。板載JST-SH連接器有四個信號：Vcc，GND，Tx和Rx。在下面的連接附件部分中可以找到兼容的JST-SH尾纖。
注意：請注意，儘管此指紋掃描儀配備了我們在所有Qwiic電路板上使用的相同連接器，但它不是Qwiic或I 2 C兼容的。話雖如此，我們所有的Qwiic電纜，如我們的100mm版本，都適用於該電路板。
感測器特色：
- 簡單的UART和USB通信協議
- 符合USB 2.0全速規範
- 超薄光學傳感器
- 分辨率450 dpi
- 能夠360°識別
- 存儲3000個獨特的指紋
- 在手指功能上喚醒
- 適用於乾燥，潮濕或粗糙的指紋
- 表面高硬度≧5H的抗划痕
- 1：1驗證，1：N驗證
- 高精度和高速指紋識別技術
- 4個安裝孔
- 2個JST SH連接器
教學文件與指南
Fingerprint Scanner – TTL (GT-521F52)
Fingerprint scanners are awesome! Why use a key when you have one right at the tip of your finger? Unfortunately, they’re often unreliable or difficult to implement. Well not anymore! This great GT-521F52 fingerprint module from ADH-Tech communicates over TTL Serial so you can easily embed it into your next project. The module itself does all of the heavy lifting behind reading and identifying the fingerprints with an onboard optical sensor and 32-bit ARM Cortex M3 processor.
To get started, just register each fingerprint that you want to store by sending the corresponding command and pressing your finger against the reader three times. The fingerprint scanner can store different fingerprints, and the database of prints can even be downloaded from the unit and distributed to other modules. In addition to the fingerprint “template,” the analyzed version of the print, you can retrieve the image of a fingerprint and even pull raw images from the optical sensor!
This module is the upgraded version of the GT-521F32 and can store up to an astounding 3,000 different fingerprints! It is capable of 360° fingerprint recognition and download/upload templates using serial interface. Additionally, the GT-521Fxx series features a resolution of 450dpi, with a false acceptance rate of <0.001% and a false rejection rate of <0.1% while only needing <1.5 seconds to identify a unique fingerprint!
The module is small and easy to mount using four mounting holes surrounding the sensor. The onboard JST-SH connector has four signals: Vcc, GND, Tx and Rx. A compatible JST-SH pigtail can be found in the Hookup Accessories section below.
Note: Please be aware that even though this fingerprint scanner is equipped with the same connector we use on all of our Qwiic boards, it is NOT Qwiic or I2C compatible. That being said, all of our Qwiic cables, like our 100mm version, will work for this board.
