Joe Sobchuk
The receiver's code for Home Security with RF
Dependencies: Camera_LS_Y201 SDFileSystem Servo hmac_md5 mbed
Revision 0:bbfc7c781872, committed 2014-12-08
- Comitter:
- jsobchuk3
- Date:
- Mon Dec 08 22:42:21 2014 +0000
- Commit message:
- ECE 4180 Final
Changed in this revision
diff -r 000000000000 -r bbfc7c781872 Camera_LS_Y201.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Camera_LS_Y201.lib Mon Dec 08 22:42:21 2014 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/shintamainjp/code/Camera_LS_Y201/#43358d40f879
diff -r 000000000000 -r bbfc7c781872 SDFileSystem.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Mon Dec 08 22:42:21 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/teams/mbed/code/SDFileSystem/#7b35d1709458
diff -r 000000000000 -r bbfc7c781872 Servo.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Servo.lib Mon Dec 08 22:42:21 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/simon/code/Servo/#36b69a7ced07
diff -r 000000000000 -r bbfc7c781872 Speaker.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Speaker.h Mon Dec 08 22:42:21 2014 +0000
@@ -0,0 +1,52 @@
+class Speaker
+{
+public:
+ Speaker(PinName pin) : _pin(pin) {
+// _pin(pin) means pass pin to the Speaker Constructor
+// precompute 32 sample points on one sine wave cycle
+// used for continuous sine wave output later
+ for(int k=0; k<32; k++) {
+ Analog_out_data[k] = int (65536.0 * ((1.0 + sin((float(k)/32.0*6.28318530717959)))/2.0));
+ // scale the sine wave to 16-bits - as needed for AnalogOut write_u16 arg
+ }
+
+ }
+// class method to play a note based on AnalogOut class
+ void PlayNote(float frequency, float duration, float volume) {
+ // scale samples using current volume level arg
+ for(int k=0; k<32; k++) {
+ Analog_scaled_data[k] = Analog_out_data[k] * volume;
+ }
+ // reset to start of sample array
+ i=0;
+ // turn on timer interrupts to start sine wave output
+ Sample_Period.attach(this, &Speaker::Sample_timer_interrupt, 1.0/(frequency*32.0));
+ // play note for specified time
+ wait(duration);
+ // turns off timer interrupts
+ Sample_Period.detach();
+ // sets output to mid range - analog zero
+ this->_pin.write_u16(32768);
+
+ }
+private:
+// sets up specified pin for analog using AnalogOut class
+ AnalogOut _pin;
+ // set up a timer to be used for sample rate interrupts
+ Ticker Sample_Period;
+
+ //variables used by interrupt routine and PlayNote
+ volatile int i;
+ short unsigned Analog_out_data[32];
+ short unsigned Analog_scaled_data[32];
+
+// Interrupt routine
+// used to output next analog sample whenever a timer interrupt occurs
+ void Sample_timer_interrupt(void) {
+ // send next analog sample out to D to A
+ this->_pin.write_u16(Analog_scaled_data[i]);
+ // increment pointer and wrap around back to 0 at 32
+ i = (i+1) & 0x01F;
+ }
+};
+
diff -r 000000000000 -r bbfc7c781872 camera.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/camera.cpp Mon Dec 08 22:42:21 2014 +0000
@@ -0,0 +1,125 @@
+#include "mbed.h"
+#include "Camera_LS_Y201.h"
+#include "SDFileSystem.h"
+
+#define DEBMSG printf
+#define NEWLINE() printf("\r\n")
+
+#define USE_SDCARD 1
+
+#if USE_SDCARD
+#define FILENAME "/sd/IMG_%04d.jpg"
+SDFileSystem fs(p5, p6, p7, p8, "sd");
+#else
+#define FILENAME "/local/IMG_%04d.jpg"
+LocalFileSystem fs("local");
+#endif
+Camera_LS_Y201 cam1(p13, p14);
+
+typedef struct work {
+ FILE *fp;
+} work_t;
+
+work_t work;
+
+/**
+ * Callback function for readJpegFileContent.
+ *
+ * @param buf A pointer to a buffer.
+ * @param siz A size of the buffer.
+ */
+void callback_func(int done, int total, uint8_t *buf, size_t siz) {
+ fwrite(buf, siz, 1, work.fp);
+
+ static int n = 0;
+ int tmp = done * 100 / total;
+ if (n != tmp) {
+ n = tmp;
+ //DEBMSG("Writing...: %3d%%", n);
+ //NEWLINE();
+ }
+}
+
+/**
+ * Capture.
+ *
+ * @param cam A pointer to a camera object.
+ * @param filename The file name.
+ *
+ * @return Return 0 if it succeed.
+ */
+int capture(Camera_LS_Y201 *cam, char *filename) {
+ /*
+ * Take a picture.
+ */
+ if (cam->takePicture() != 0) {
+ return -1;
+ }
+ DEBMSG("Captured.");
+ NEWLINE();
+
+ /*
+ * Open file.
+ */
+ work.fp = fopen(filename, "wb");
+ if (work.fp == NULL) {
+ return -2;
+ }
+
+ /*
+ * Read the content.
+ */
+ DEBMSG("%s", filename);
+ NEWLINE();
+ if (cam->readJpegFileContent(callback_func) != 0) {
+ fclose(work.fp);
+ return -3;
+ }
+ fclose(work.fp);
+
+ /*
+ * Stop taking pictures.
+ */
+ cam->stopTakingPictures();
+
+ return 0;
+}
+
+/**
+ * Entry point.
+ */
+int camInit(void) {
+ DEBMSG("Camera module");
+ NEWLINE();
+ DEBMSG("Resetting...");
+ NEWLINE();
+ wait(1);
+
+ if (cam1.reset() == 0) {
+ DEBMSG("Reset OK.");
+ NEWLINE();
+ } else {
+ DEBMSG("Reset fail.");
+ NEWLINE();
+ error("Reset fail.");
+ }
+ wait(1);
+}
+ int takepic(int cnt) {
+ //int cnt = 0;
+ //while (1) {
+ char fname[64];
+ snprintf(fname, sizeof(fname) - 1, FILENAME, cnt);
+ int r = capture(&cam1, fname);
+ if (r == 0) {
+ DEBMSG("[%04d]:OK.", cnt);
+ NEWLINE();
+ } else {
+ DEBMSG("[%04d]:NG. (code=%d)", cnt, r);
+ NEWLINE();
+ error("Failure.");
+ }
+ //cnt++;
+ //}
+ return 1;
+}
\ No newline at end of file
diff -r 000000000000 -r bbfc7c781872 hmac_md5.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hmac_md5.lib Mon Dec 08 22:42:21 2014 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/igrokhotkov/code/hmac_md5/#83f3dcfa5c8f
diff -r 000000000000 -r bbfc7c781872 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Dec 08 22:42:21 2014 +0000
@@ -0,0 +1,158 @@
+#include "mbed.h"
+#include "Servo.h"
+#include "hmac_md5.h"
+#include "Camera_LS_Y201.h"
+#include "Speaker.h"
+AnalogIn ir(p20);
+DigitalOut myled2(LED2);
+Serial pc(USBTX,USBRX);
+Serial rf(p9,p10);
+Servo myservo(p23);
+Speaker mySpeaker(p18);
+Timer t;
+int takepic(int);
+int camInit(void);
+
+int main() {
+ pc.baud(1200);
+ rf.baud(1200);
+ char code = 0;
+ char codebuf[32];
+ int cnt = 0;
+ int unlocked = 0;
+ int matching = 0;
+
+ int i =0;
+ char key[4] = "Dhr";
+ for (i = 0; i < 4; i++) {
+ key[i] = (key[i] + 5);
+ }
+ char key2[4] = {0};
+ key2[0] = key[0];
+ key2[1] = key[1];
+ key2[2] = key[2];
+ for (i = 0; i < 4; i++) {
+ key2[i] = (key2[i] + 5);
+ }
+ char key3[4] = {0};
+ key3[0] = key2[0];
+ key3[1] = key2[1];
+ key3[2] = key2[2];
+ for (i = 0; i < 4; i++) {
+ key3[i] = (key3[i] + 5);
+ }
+
+ char received[3] = {0};
+
+ camInit();
+
+ while(1) {
+ if (rf.readable()) {
+ myled2 = 1;
+ matching = 0;
+
+ //Ignore Sync pattern and do not pass on to PC
+ int i = 0;
+
+ //Clear the buffer
+ for(i = 0; i < 32; i++) {
+ codebuf[i] = 0;
+ }
+
+ for(i = 0; i < 32; i++) {
+ code = rf.getc();
+ if(code != 0xAA) {
+ codebuf[i] = code;
+ pc.printf("codebuf[%d] = %c\r\n", i, codebuf[i]);
+ }
+ }
+
+ for(i = 0; i < 30; i++) {
+ if(codebuf[i] == key[0]) {
+ if(codebuf[i+1] == key[1]) {
+ if(codebuf[i+2] == key[2]) {
+ received[0] = codebuf[i];
+ received[1] = codebuf[i+1];
+ received[2] = codebuf[i+2];
+ matching = 1;
+ break;
+ }
+ }
+ }
+ if(codebuf[i] == key2[0]) {
+ if(codebuf[i+1] == key2[1]) {
+ if(codebuf[i+2] == key2[2]) {
+ received[0] = codebuf[i];
+ received[1] = codebuf[i+1];
+ received[2] = codebuf[i+2];
+ matching = 2;
+ break;
+ }
+ }
+ }
+ if(codebuf[i] == key3[0]) {
+ if(codebuf[i+1] == key3[1]) {
+ if(codebuf[i+2] == key3[2]) {
+ received[0] = codebuf[i];
+ received[1] = codebuf[i+1];
+ received[2] = codebuf[i+2];
+ matching = 3;
+ break;
+ }
+ }
+ }
+ }
+
+ myled2 = 0;
+ if(matching) {
+
+ pc.printf("Unlocking door\r\n");
+ mySpeaker.PlayNote(800.0, 0.5, 1.0);
+ // Turn servo
+ myservo = unlocked;
+ wait(1);
+ unlocked = !unlocked;
+
+ if (matching == 1) {
+ for (i = 0; i < 4; i++) {
+ key[i] = (key[i] + 5);
+ }
+ }
+ if (matching == 2) {
+ for (i = 0; i < 4; i++) {
+ key[i] = (key2[i] + 5);
+ }
+ }
+ if (matching == 3) {
+ for (i = 0; i < 4; i++) {
+ key[i] = (key3[i] + 5);
+ }
+ }
+
+ key2[0] = key[0];
+ key2[1] = key[1];
+ key2[2] = key[2];
+
+ for (i = 0; i < 4; i++) {
+ key2[i] = (key2[i] + 5);
+ }
+
+
+ key3[0] = key2[0];
+ key3[1] = key2[1];
+ key3[2] = key2[2];
+ for (i = 0; i < 4; i++) {
+ key3[i] = (key3[i] + 5);
+ }
+
+ takepic(cnt);
+
+ cnt++;
+ }
+
+
+
+
+ }
+ }
+}
diff -r 000000000000 -r bbfc7c781872 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Dec 08 22:42:21 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/031413cf7a89 \ No newline at end of file