---
product_id: 414347452
title: "TANGRAM FlashTree Green Light Optical Fingerprint Reader Sensor Module 6 Pins for Arduino Mega2560 UNO R3"
brand: "tangram"
price: "20.37 OMR"
currency: OMR
in_stock: true
url: https://www.desertcart.com.om/products/414347452-tangram-flashtree-green-light-optical-fingerprint-reader-sensor-module-6
store_origin: OM
region: Oman
---

# High-powered DSP chip 162 fingerprint storage slots TTL serial interface TANGRAM FlashTree Green Light Optical Fingerprint Reader Sensor Module 6 Pins for Arduino Mega2560 UNO R3

**Brand:** tangram
**Price:** 20.37 OMR
**Availability:** ✅ In Stock

## Summary

> 🔐 Unlock the future of security with a single touch!

## Quick Answers

- **What is this?** TANGRAM FlashTree Green Light Optical Fingerprint Reader Sensor Module 6 Pins for Arduino Mega2560 UNO R3 by tangram
- **How much does it cost?** 20.37 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/414347452-tangram-flashtree-green-light-optical-fingerprint-reader-sensor-module-6)

## Best For

- tangram enthusiasts

## Why This Product

- Trusted tangram brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Future-Proof Your Tech:** Ideal for safes, smart locks, and next-gen security systems.
- • **Plug & Play Integration:** Seamlessly connects with Arduino Mega2560 and UNO R3 via TTL serial.
- • **Lightning-Fast Processing:** Built-in DSP chip handles image rendering and feature extraction instantly.
- • **All-in-One Biometric Solution:** Capture, detect, hash, and search fingerprints with a single module.
- • **Secure Your Projects Like a Pro:** Store up to 162 unique fingerprints for multi-user access control.

## Overview

The TANGRAM FlashTree Green Light Optical Fingerprint Reader is a compact, high-performance biometric sensor module designed for Arduino Mega2560 and UNO R3. Featuring a powerful DSP chip, it processes fingerprint images and stores up to 162 unique prints in onboard flash memory. With TTL serial communication, it offers easy integration for secure access control and verification in DIY and professional projects.

## Description

Make adding fingerprint detection and verification super simple. Typically used in safes?-there's a high powered DSP chip that does the image rendering, calculation, feature-finding and searching. Connect to any microcontroller or system with TTL serial, and send packets of data to take photos, detect prints, hash and search. You can also enroll new fingers directly - up to 162 finger prints can be stored in the onboard FLASH memory.

## Features

- Make adding fingerprint detection and verification super simple. Typically used in safes?-there's a high powered DSP chip that does the image rendering, calculation, feature-finding and searching. Con
- FlashTree Green Light Optical Fingerprint Reader Sensor Module 6 Pins for Arduino Mega2560 UNO R3

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #4,559 in Single Board Computers (Computers & Accessories) |
| Customer Reviews | 3.8 out of 5 stars 27 Reviews |

## Images

![TANGRAM FlashTree Green Light Optical Fingerprint Reader Sensor Module 6 Pins for Arduino Mega2560 UNO R3 - Image 1](https://m.media-amazon.com/images/I/51ifPRTneUL.jpg)

## Questions & Answers

**Q: can you connect this sensor to the raspberry pi 3 B Plus? and if so, what is the pinout? I've tried any possible combined and it does not work!**
A: Raspberry PI 3  Plus has bluetooth, The uart is connected to the bluetooth by default, so you can't use it unless set to turn off bluetooth. Another easier way is to use USB TO TTL module, such as FT232RL OR CP2102 breakout connect to the USB port

**Q: Does the light stay on all the time or just wen a finger is applied?**
A: it is not all the time,just went need get a finger press.

**Q: Mine doesn't light up and the enroll code in Adafruit Library doesn't detect it. Is that a corregible mistake or is it just damaged?**
A: 1, first open the ARDUINO IDE software, input fingerprint in the Library management, installation adafruit fingerprint Sensor Library Ver 1.1.3
2, open  file --> example --> adafruit Fingerprint Sensor Library --> enroll, to download the program to the arduino uno r3,
3, open the serial port monitor, baud rate is set to 9600, we first not connect the fingerprint module, a serial port monitor displays

The Adafruit Fingerprint sensor enrollment
Did not find fingerprint sensor: (


4, connect the fingerprint module to the board, 
RED < - > 5 v,
BLACK < - > GND, 
GREEN < - > 2, 
WHITE < - > 3, 
the yellow and blue do not need the connect. 

Then reopen the serial port monitor, It will show:

The Adafruit Fingerprint sensor enrollment
Found fingerprint sensor.
Ready to enroll a fingerprint!
Both Please type in the ID # (from 1 to 127) you want to save this finger as...

You can send 1 to 127 text that enroll fingerpirnt. and then the fingerpint module will be light up.

**Q: Is this conpatible with raspberry pi 3?**
A: Yes, but it's not easy

## Frequently Bought Together

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-03-02*