Indiana Jones Style Security Sensor with Keypad

Page last updated 13 Mar 2015, by Austin O'Connell. 0 replies

For our project, we decided to create a security sensor akin to the ancient traps that Indiana Jones encounters. This project uses a speaker connected with a MOSFET, a microSD reader, a uLCD-144-G2 LCD screen, a Sparkfun Touch Keypad and an IR sensor. The LCD screen displays the status of the alarm: "ARMED" if the object is still in place, "MISSING!" if the object is removed without entering the correct code, or "DISARMED" if the correct code is entered. After pressing four numbers on the keypad, the number entered is displayed and either "INCORRECT" or "Take your item" will appear. If the correct code is entered, the timer will count down from 20, during which time the item can be removed and replaced without the alarm sounding. The alarm will re-arm following the 20 seconds.

An incorrect passcode being entered: /media/uploads/coconnell7/img_0377.jpg

A correct passcode being entered: /media/uploads/coconnell7/img_0380.jpg

ComponentsLink
IR Sensor
Speaker
Sparkfun Touch Keypadhttp://developer.mbed.org/components/MPR121-I2C-Capacitive-Touch-Keypad/
uLCD-144-G2http://developer.mbed.org/components/MPR121-I2C-Capacitive-Touch-Keypad/
SD Card Readerhttp://developer.mbed.org/components/SD-Card/

LCD Screen

LCD Pinmbed Pin
1P29
2GND
3P28
4P27
5VU

IR Module

IR Pinmbed Pin
YellowP20
BlackGND
RedVout

Touch Keypad

Keypadmbed Pin
VCCVout
IRQP26
SCLP10
SDAP9
GNDGND

Micro SD

Micro SDmbed Pin
D0P6
GNDGND
SCKP7
VCCVout
D1P5
CSP8

Import program4180Lab4AlarmSystem

IR Sensor Security System using a touch keypad, micro SD reader and a speaker.

Last commit 13 Mar 2015 by Austin O'Connell

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