IR Sensor Security System using a touch keypad, micro SD reader and a speaker.
Dependencies: 4DGL-uLCD-SE SDFileSystem mbed-rtos mbed wave_player
Revision 0:038ed656f129, committed 2015-03-13
- Comitter:
- coconnell7
- Date:
- Fri Mar 13 03:49:26 2015 +0000
- Commit message:
- 1st Revision
Changed in this revision
diff -r 000000000000 -r 038ed656f129 4DGL-uLCD-SE.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/4DGL-uLCD-SE.lib Fri Mar 13 03:49:26 2015 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/4180_1/code/4DGL-uLCD-SE/#e39a44de229a
diff -r 000000000000 -r 038ed656f129 SDFileSystem.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Fri Mar 13 03:49:26 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/SDFileSystem/#c8f66dc765d4
diff -r 000000000000 -r 038ed656f129 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Fri Mar 13 03:49:26 2015 +0000 @@ -0,0 +1,215 @@ +#include "mbed.h" +#include "rtos.h" + +#include "uLCD_4DGL.h" // uLCD +#include "wave_player.h" // Speaker +#include "SDFileSystem.h" // SD card +#include <mpr121.h> // Touchpad + + +bool ArmedOnOff; // Global variable to Arm the alarm; +int CurrentKey; // Global variable to display the current key value to the LCD +int OldCurrentKey; +int KeyCount = 0; //Keeps track of how many times in a row the key has been pressed +int Trigger = 1; //Determining if the alarm has been triggered +DigitalOut led1(LED1); +DigitalOut led2(LED2); +DigitalOut led3(LED3); +DigitalOut led4(LED4); + +int num1; //The four digits of the passcode +int num2; +int num3; +int num4; + +int Safety = 0; //Counter to check if correct passcode is entered + + +SDFileSystem sd(p5, p6, p7, p8, "sd"); // MicroSD card + +AnalogIn IRout(p20); // IR Module + +AnalogOut DACout(p18); // Speaker / Wave Player +wave_player waver(&DACout); // Speaker / Wave player + +uLCD_4DGL uLCD(p28, p27, p29); // used to create LCD object + +Mutex stdio_mutex; // Mutex for LCD thread + +InterruptIn interrupt(p26); // Create interrupt receiver object on pin 26 + +I2C i2c(p9, p10); // Setup i2c bus on pins 9 and 10 + +// constructor(i2c object, i2c address of the mpr121) +Mpr121 mpr121(&i2c, Mpr121::ADD_VSS); // Mpr121 constructor + +// mpr121 keypad interrupt +void fallInterrupt(){ + OldCurrentKey = CurrentKey; + int key_code=0; + int i=0; + int value=mpr121.read(0x00); + value +=mpr121.read(0x01)<<8; + i=0; + for (i=0; i<12; i++) { + if (((value>>i)&0x01)==1) key_code=i+1; + } + led4=key_code & 0x01; + led3=(key_code>>1) & 0x01; + led2=(key_code>>2) & 0x01; + led1=(key_code>>3) & 0x01; + if(led1==0 & led2==0 & led3==0 & led4==1) //Convert recieved value from keypad + CurrentKey = 0; + if(led1==0 & led2==0 & led3==1 & led4==0) + CurrentKey = 1; + if(led1==0 & led2==0 & led3==1 & led4==1) + CurrentKey = 2; + if(led1==0 & led2==1 & led3==0 & led4==0) + CurrentKey = 3; + if(led1==0 & led2==1 & led3==0 & led4==1) + CurrentKey = 4; + if(led1==0 & led2==1 & led3==1 & led4==0) + CurrentKey = 5; + if(led1==0 & led2==1 & led3==1 & led4==1) + CurrentKey = 6; + if(led1==1 & led2==0 & led3==0 & led4==0) + CurrentKey = 7; + if(led1==1 & led2==0 & led3==0 & led4==1) + CurrentKey = 8; + if(led1==1 & led2==0 & led3==1 & led4==0) + CurrentKey = 9; + if(led1==1 & led2==0 & led3==1 & led4==1) + CurrentKey = 10; + if(led1==1 & led2==1 & led3==0 & led4==0) + CurrentKey = 11; + if(CurrentKey != OldCurrentKey & Trigger == 1){ //Ensures that only four numbers are used at a time + KeyCount = KeyCount + 1; + if(KeyCount == 1) + num1 = CurrentKey; + if(KeyCount == 2) + num2 = CurrentKey; + if(KeyCount == 3) + num3 = CurrentKey; + if(KeyCount == 4){ + num4 = CurrentKey; + Trigger = 0; + KeyCount = 0; + } + } +} + + +// uLCD thread +void Armed(void const *args){ //Thread for initial state of the alarm + interrupt.fall(&fallInterrupt); + interrupt.mode(PullUp); + while(1){ + if(Safety == 0){ + stdio_mutex.lock(); // Mutex lock for LCD screen + if(!ArmedOnOff){ + uLCD.locate(1,1); //The default state for the alarm + uLCD.printf("ALARM: ARMED "); + uLCD.locate(1,5); + uLCD.printf("Enter Passcode: "); + } + stdio_mutex.unlock(); // Unlock mutex + } + } +} + +void PassCode(void const *args){ //Thread to check passcode + interrupt.fall(&fallInterrupt); + interrupt.mode(PullUp); + while(1){ + if(Trigger == 0){ + stdio_mutex.lock(); // Mutex lock for LCD screen + uLCD.locate(1,7); + uLCD.printf(" "); + uLCD.locate(1,8); + uLCD.printf(" "); + if(num1 == 1 & num2 == 9 & num3 == 4 & num4 == 2){ //Checks to see if the correct key is entered, 1942 + uLCD.locate(1,1); + uLCD.printf("ALARM: DISARMED"); //The disarmed state for the alarm upon entering the correct code + uLCD.locate(1,7); + uLCD.printf("%d %d %d %d",num1,num2,num3,num4); + uLCD.locate(1,8); + uLCD.printf("Take your item"); + Safety = 1; + int countDown = 20; + while(countDown >=0){ // Countdown to when the alarm will re-arm + uLCD.locate(1,9); + uLCD.printf("ARMING IN %d ", countDown); + countDown--; + Thread::wait(1000.0); // Wait 1 second + } + countDown = 20; + uLCD.locate(1,9); + uLCD.printf(" "); //clears the lower screen + uLCD.locate(1,7); + uLCD.printf(" "); + uLCD.locate(1,8); + uLCD.printf(" "); + Safety = 0; + } + else { + uLCD.locate(1,7); + uLCD.printf("%d %d %d %d",num1,num2,num3,num4); //Displays the incorrect passcode waits 5 seconds for further entries + uLCD.locate(1,8); + uLCD.printf("INCORRECT"); + Thread::wait(5000.0); + uLCD.locate(1,7); + uLCD.printf(" "); //clears the lower screen + uLCD.locate(1,8); + uLCD.printf(" "); + } + stdio_mutex.unlock(); // Unlock mutex + Trigger = 1; + Thread::wait(1000.0); // 10 second wait + } + } +} + + +void Alarm(void const *args) //Thread to sound alarm +{ + interrupt.fall(&fallInterrupt); + interrupt.mode(PullUp); + while(1){ + if(ArmedOnOff==true & Safety == 0){ + stdio_mutex.lock(); // Mutex lock for LCD screen + uLCD.locate(1,1); + uLCD.printf("ALARM: MISSING!"); //Sounds alarm if the correct code isn't entered and the object is missing + uLCD.locate(1,5); + uLCD.printf("Enter Passcode: "); + stdio_mutex.unlock(); // Unlock mutex + FILE *wave_file; + wave_file=fopen("/sd/myMusic/Alarm.wav","r"); + waver.play(wave_file); + fclose(wave_file); + + //Thread::wait(1000.0); // Wait 1 second + } + } +} + + +int main(){ + Thread thread1(Alarm); + Thread thread3(Armed); + Thread thread4(PassCode); + interrupt.mode(PullUp); + interrupt.fall(&fallInterrupt); + + while(1){ + + + if (IRout < 0.5f){ + //led1 = 1; + ArmedOnOff = true; + } + else { + ArmedOnOff = false; + } + + } +} \ No newline at end of file
diff -r 000000000000 -r 038ed656f129 mbed-rtos.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos.lib Fri Mar 13 03:49:26 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed-rtos/#83e169389a69
diff -r 000000000000 -r 038ed656f129 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Mar 13 03:49:26 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/e188a91d3eaa \ No newline at end of file
diff -r 000000000000 -r 038ed656f129 mpr121.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mpr121.cpp Fri Mar 13 03:49:26 2015 +0000 @@ -0,0 +1,221 @@ +/* +Copyright (c) 2011 Anthony Buckton (abuckton [at] blackink [dot} net {dot} au) + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +#include <mbed.h> +#include <sstream> +#include <string> +#include <list> + +#include <mpr121.h> + +Mpr121::Mpr121(I2C *i2c, Address i2cAddress) +{ + this->i2c = i2c; + + address = i2cAddress; + + // Configure the MPR121 settings to default + this->configureSettings(); +} + + +void Mpr121::configureSettings() +{ + // Put the MPR into setup mode + this->write(ELE_CFG,0x00); + + // Electrode filters for when data is > baseline + unsigned char gtBaseline[] = { + 0x01, //MHD_R + 0x01, //NHD_R + 0x00, //NCL_R + 0x00 //FDL_R + }; + + writeMany(MHD_R,gtBaseline,4); + + // Electrode filters for when data is < baseline + unsigned char ltBaseline[] = { + 0x01, //MHD_F + 0x01, //NHD_F + 0xFF, //NCL_F + 0x02 //FDL_F + }; + + writeMany(MHD_F,ltBaseline,4); + + // Electrode touch and release thresholds + unsigned char electrodeThresholds[] = { + E_THR_T, // Touch Threshhold + E_THR_R // Release Threshold + }; + + for(int i=0; i<12; i++){ + int result = writeMany((ELE0_T+(i*2)),electrodeThresholds,2); + } + + // Proximity Settings + unsigned char proximitySettings[] = { + 0xff, //MHD_Prox_R + 0xff, //NHD_Prox_R + 0x00, //NCL_Prox_R + 0x00, //FDL_Prox_R + 0x01, //MHD_Prox_F + 0x01, //NHD_Prox_F + 0xFF, //NCL_Prox_F + 0xff, //FDL_Prox_F + 0x00, //NHD_Prox_T + 0x00, //NCL_Prox_T + 0x00 //NFD_Prox_T + }; + writeMany(MHDPROXR,proximitySettings,11); + + unsigned char proxThresh[] = { + PROX_THR_T, // Touch Threshold + PROX_THR_R // Release Threshold + }; + writeMany(EPROXTTH,proxThresh,2); + + this->write(FIL_CFG,0x04); + + // Set the electrode config to transition to active mode + this->write(ELE_CFG,0x0c); +} + +void Mpr121::setElectrodeThreshold(int electrode, unsigned char touch, unsigned char release){ + + if(electrode > 11) return; + + // Get the current mode + unsigned char mode = this->read(ELE_CFG); + + // Put the MPR into setup mode + this->write(ELE_CFG,0x00); + + // Write the new threshold + this->write((ELE0_T+(electrode*2)), touch); + this->write((ELE0_T+(electrode*2)+1), release); + + //Restore the operating mode + this->write(ELE_CFG, mode); +} + + +unsigned char Mpr121::read(int key){ + + unsigned char data[2]; + + //Start the command + i2c->start(); + + // Address the target (Write mode) + int ack1= i2c->write(address); + + // Set the register key to read + int ack2 = i2c->write(key); + + // Re-start for read of data + i2c->start(); + + // Re-send the target address in read mode + int ack3 = i2c->write(address+1); + + // Read in the result + data[0] = i2c->read(0); + + // Reset the bus + i2c->stop(); + + return data[0]; +} + + +int Mpr121::write(int key, unsigned char value){ + + //Start the command + i2c->start(); + + // Address the target (Write mode) + int ack1= i2c->write(address); + + // Set the register key to write + int ack2 = i2c->write(key); + + // Read in the result + int ack3 = i2c->write(value); + + // Reset the bus + i2c->stop(); + + return (ack1+ack2+ack3)-3; +} + + +int Mpr121::writeMany(int start, unsigned char* dataSet, int length){ + //Start the command + i2c->start(); + + // Address the target (Write mode) + int ack= i2c->write(address); + if(ack!=1){ + return -1; + } + + // Set the register key to write + ack = i2c->write(start); + if(ack!=1){ + return -1; + } + + // Write the date set + int count = 0; + while(ack==1 && (count < length)){ + ack = i2c->write(dataSet[count]); + count++; + } + // Stop the cmd + i2c->stop(); + + return count; +} + + +bool Mpr121::getProximityMode(){ + if(this->read(ELE_CFG) > 0x0c) + return true; + else + return false; +} + +void Mpr121::setProximityMode(bool mode){ + this->write(ELE_CFG,0x00); + if(mode){ + this->write(ELE_CFG,0x30); //Sense proximity from ALL pads + } else { + this->write(ELE_CFG,0x0c); //Sense touch, all 12 pads active. + } +} + + +int Mpr121::readTouchData(){ + return this->read(0x00); +} \ No newline at end of file
diff -r 000000000000 -r 038ed656f129 mpr121.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mpr121.h Fri Mar 13 03:49:26 2015 +0000 @@ -0,0 +1,157 @@ +/* +Copyright (c) 2011 Anthony Buckton (abuckton [at] blackink [dot} net {dot} au) + + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. + + Parts written by Jim Lindblom of Sparkfun + Ported to mbed by A.Buckton, Feb 2011 +*/ + +#ifndef MPR121_H +#define MPR121_H + +//using namespace std; + +class Mpr121 +{ + +public: + // i2c Addresses, bit-shifted + enum Address { ADD_VSS = 0xb4,// ADD->VSS = 0x5a <-wiring on Sparkfun board + ADD_VDD = 0xb6,// ADD->VDD = 0x5b + ADD_SCL = 0xb8,// ADD->SDA = 0x5c + ADD_SDA = 0xba // ADD->SCL = 0x5d + }; + + // Real initialiser, takes the i2c address of the device. + Mpr121(I2C *i2c, Address i2cAddress); + + bool getProximityMode(); + + void setProximityMode(bool mode); + + int readTouchData(); + + unsigned char read(int key); + + int write(int address, unsigned char value); + int writeMany(int start, unsigned char* dataSet, int length); + + void setElectrodeThreshold(int electrodeId, unsigned char touchThreshold, unsigned char releaseThreshold); + +protected: + // Configures the MPR with standard settings. This is permitted to be overwritten by sub-classes. + void configureSettings(); + +private: + // The I2C bus instance. + I2C *i2c; + + // i2c address of this mpr121 + Address address; +}; + + +// MPR121 Register Defines +#define MHD_R 0x2B +#define NHD_R 0x2C +#define NCL_R 0x2D +#define FDL_R 0x2E +#define MHD_F 0x2F +#define NHD_F 0x30 +#define NCL_F 0x31 +#define FDL_F 0x32 +#define NHDT 0x33 +#define NCLT 0x34 +#define FDLT 0x35 +// Proximity sensing controls +#define MHDPROXR 0x36 +#define NHDPROXR 0x37 +#define NCLPROXR 0x38 +#define FDLPROXR 0x39 +#define MHDPROXF 0x3A +#define NHDPROXF 0x3B +#define NCLPROXF 0x3C +#define FDLPROXF 0x3D +#define NHDPROXT 0x3E +#define NCLPROXT 0x3F +#define FDLPROXT 0x40 +// Electrode Touch/Release thresholds +#define ELE0_T 0x41 +#define ELE0_R 0x42 +#define ELE1_T 0x43 +#define ELE1_R 0x44 +#define ELE2_T 0x45 +#define ELE2_R 0x46 +#define ELE3_T 0x47 +#define ELE3_R 0x48 +#define ELE4_T 0x49 +#define ELE4_R 0x4A +#define ELE5_T 0x4B +#define ELE5_R 0x4C +#define ELE6_T 0x4D +#define ELE6_R 0x4E +#define ELE7_T 0x4F +#define ELE7_R 0x50 +#define ELE8_T 0x51 +#define ELE8_R 0x52 +#define ELE9_T 0x53 +#define ELE9_R 0x54 +#define ELE10_T 0x55 +#define ELE10_R 0x56 +#define ELE11_T 0x57 +#define ELE11_R 0x58 +// Proximity Touch/Release thresholds +#define EPROXTTH 0x59 +#define EPROXRTH 0x5A +// Debounce configuration +#define DEB_CFG 0x5B +// AFE- Analogue Front End configuration +#define AFE_CFG 0x5C +// Filter configuration +#define FIL_CFG 0x5D +// Electrode configuration - transistions to "active mode" +#define ELE_CFG 0x5E + +#define GPIO_CTRL0 0x73 +#define GPIO_CTRL1 0x74 +#define GPIO_DATA 0x75 +#define GPIO_DIR 0x76 +#define GPIO_EN 0x77 +#define GPIO_SET 0x78 +#define GPIO_CLEAR 0x79 +#define GPIO_TOGGLE 0x7A +// Auto configration registers +#define AUTO_CFG_0 0x7B +#define AUTO_CFG_U 0x7D +#define AUTO_CFG_L 0x7E +#define AUTO_CFG_T 0x7F + +// Threshold defaults +// Electrode touch threshold +#define E_THR_T 0x0F +// Electrode release threshold +#define E_THR_R 0x0A +// Prox touch threshold +#define PROX_THR_T 0x02 +// Prox release threshold +#define PROX_THR_R 0x02 + +#endif
diff -r 000000000000 -r 038ed656f129 wave_player.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/wave_player.lib Fri Mar 13 03:49:26 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/sravet/code/wave_player/#acc3e18e77ad