# Biometric Lock Box ## Overview ![](https://cdn-learn.adafruit.com/assets/assets/000/003/267/medium800/biometric_2012_12_28_IMG_1097-1024.jpg?1396794656) The Biometric Security Box uses the Adafruit Fingerprint Sensor as well as a numeric pass-code and a mechanical key-lock to provide triple-security.  This tutorial is based on a 4x6 card file box, but can be easily adapted to larger lock-boxes – or even a full-size door! ![](https://cdn-learn.adafruit.com/assets/assets/000/003/268/medium800/biometric_2012_12_28_IMG_1099-1024.jpg?1396794663) - [Next Page](https://learn.adafruit.com/biometric-security-box/parts.md) ## Featured Products ### Panel Mount 2.1mm DC barrel jack [Panel Mount 2.1mm DC barrel jack](https://www.adafruit.com/product/610) This power jack is designed to easily attach to a panel up to 8mm thick (0.315" or 5/16") and fit 2.1mm power plugs snugly and securely. Perfect for adding a power connector to your project enclosure. We like this jack in particular for its long body (so you can use it on thicker... In Stock [Buy Now](https://www.adafruit.com/product/610) [Related Guides to the Product](https://learn.adafruit.com/products/610/guides) ### Rugged Metal On/Off Switch with Green LED Ring [Rugged Metal On/Off Switch with Green LED Ring](https://www.adafruit.com/product/482) These chrome-plated metal buttons are rugged and look real good while doing it! Simply drill a 16mm hole into any material up to 1/2" thick and you can fit these in place, there's even a rubber gasket to keep water out of the enclosure. On the front of the button is a flat metal... In Stock [Buy Now](https://www.adafruit.com/product/482) [Related Guides to the Product](https://learn.adafruit.com/products/482/guides) ### Adafruit MENTA - Mint Tin Arduino Compatible Kit with Mint Tin [Adafruit MENTA - Mint Tin Arduino Compatible Kit with Mint Tin](https://www.adafruit.com/product/795) Introducing the MENTA, a portable minty Arduino-compatible project that fits into a common mint tin. We took our super popular Boarduino series, and wrapped it with a prototyping area into a rounded PCB that slots directly into an Altoids-sized metal tin. We included everything you expect to... No Longer Stocked [Buy Now](https://www.adafruit.com/product/795) [Related Guides to the Product](https://learn.adafruit.com/products/795/guides) ### N-channel power MOSFET [N-channel power MOSFET](https://www.adafruit.com/product/355) When you need to switch a lot of power, N-channel MOSFETs are best for the job. These FETs can switch over 60A and 30V and are TO-220 packages so they fit nicely into any breadboard or perfboard. Heat sinking is easy with TO-220's, but because of the very low Rds(on) of down to 0.009 ohms... In Stock [Buy Now](https://www.adafruit.com/product/355) [Related Guides to the Product](https://learn.adafruit.com/products/355/guides) ### Small Push-Pull Solenoid - 12VDC [Small Push-Pull Solenoid - 12VDC](https://www.adafruit.com/product/412) Solenoids are basically electromagnets: they are made of a big coil of copper wire with an armature (a slug of metal) in the middle. When the coil is energized, the slug is pulled into the center of the coil. This makes the solenoid able to pull (from one end) or push (from the other) Out of Stock [Buy Now](https://www.adafruit.com/product/412) [Related Guides to the Product](https://learn.adafruit.com/products/412/guides) ### Membrane 3x4 Matrix Keypad + extras [Membrane 3x4 Matrix Keypad + extras](https://www.adafruit.com/product/419) Punch in your secret key into this numeric matrix keypad. This keypad has 12 buttons, arranged in a telephone-line 3x4 grid. It's made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything. The keys are connected into... In Stock [Buy Now](https://www.adafruit.com/product/419) [Related Guides to the Product](https://learn.adafruit.com/products/419/guides) ### Fingerprint sensor [Fingerprint sensor](https://www.adafruit.com/product/751) Secure your project with biometrics - this all-in-one optical fingerprint sensor will make adding fingerprint detection and verification super simple. These modules are typically used in safes - there's a high powered DSP chip that does the image rendering, calculation, feature-finding and... No Longer Stocked [Buy Now](https://www.adafruit.com/product/751) [Related Guides to the Product](https://learn.adafruit.com/products/751/guides) ## Related Guides - [How to train new TensorFlow Lite micro speech models](https://learn.adafruit.com/how-to-train-new-tensorflow-lite-micro-speech-models.md) - [Your Pulse Displayed with NeoPixels](https://learn.adafruit.com/pulse-sensor-displayed-with-neopixels.md) - [Meditation Trainer](https://learn.adafruit.com/heart-rate-variability-sensor.md) - [Pulse Oximeter Wireless Data Logger](https://learn.adafruit.com/pulse-oximeter-wireless-data-logger.md) - [Muse Headset Teardown](https://learn.adafruit.com/muse-headset-teardown.md) - [Control Electronics with your Brain using NextMind](https://learn.adafruit.com/control-electronics-with-your-brain-using-nextmind.md) - ['Sup Brows](https://learn.adafruit.com/heybrows.md) - [Setting up an Open Speech Recording Website](https://learn.adafruit.com/setting-up-an-open-speech-recording-website.md) - [Getting Started with MyoWare Muscle Sensor](https://learn.adafruit.com/getting-started-with-myoware-muscle-sensor.md) - [Pulse Room](https://learn.adafruit.com/pulse-room.md) - [LED Breath Stats Mask](https://learn.adafruit.com/led-breath-stats-mask.md) - [Myo Armband Teardown](https://learn.adafruit.com/myo-armband-teardown.md) - [Adafruit Optical Fingerprint Sensor](https://learn.adafruit.com/adafruit-optical-fingerprint-sensor.md) - [Circuit Playground Bluefruit BLE Heart Rate Pendant with CircuitPython](https://learn.adafruit.com/ble-heart-rate-display-pendant.md) - [Adafruit MPRLS Ported Pressure Sensor Breakout](https://learn.adafruit.com/adafruit-mprls-ported-pressure-sensor-breakout.md)