Kaoru Onoe
MP3-capable chair with sensor-embedded weight scale.
Dependencies: HysteresisIn LCD SDFileSystem VS1053 mbed
Revision 0:0451ba2f1062, committed 2013-12-20
- Comitter:
- kayekss
- Date:
- Fri Dec 20 21:35:07 2013 +0000
- Commit message:
- First commit
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HysteresisIn.lib Fri Dec 20 21:35:07 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/kayekss/code/HysteresisIn/#fe43537bd3d6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LCD.lib Fri Dec 20 21:35:07 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/yamaguch/code/LCD/#b3def1d4f466
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Fri Dec 20 21:35:07 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/SDFileSystem/#c8f66dc765d4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/VS1053.lib Fri Dec 20 21:35:07 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/kayekss/code/VS1053/#1f57fbd3aeb5
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/defs.h Fri Dec 20 21:35:07 2013 +0000
@@ -0,0 +1,36 @@
+#ifndef ISU_PROJECT_DEFS_H_
+#define ISU_PROJECT_DEFS_H_
+
+// Input thresholds
+#define HIGH_TO_LOW 0.25
+#define LOW_TO_HIGH 0.75
+
+// Delay count until settling
+#define SETTLING_COUNT 5
+
+// Polling interval (second)
+#define POLL_INTERVAL_SEC 0.50
+
+// Block size of read/write (byte)
+#define BLOCK_SIZE 1024
+
+typedef enum {
+ CANCELING = -1,
+ STOPPING = -2,
+ READY = 0,
+ PLAYING1 = 1,
+ PLAYING2 = 2,
+ PLAYING3 = 3,
+ PLAYING4 = 4
+} State;
+
+typedef enum {
+ STOP_REQUEST = -1,
+ NONE = 0,
+ PLAY1_REQUEST = 1,
+ PLAY2_REQUEST = 2,
+ PLAY3_REQUEST = 3,
+ PLAY4_REQUEST = 4
+} Request;
+
+#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Dec 20 21:35:07 2013 +0000
@@ -0,0 +1,269 @@
+#include <stdio.h>
+#include "mbed.h"
+#include "defs.h"
+#include "pinalias.h"
+#include "HysteresisIn.h"
+#include "SDFileSystem.h"
+#include "VS1053.h"
+#include "LCD.h"
+
+SDFileSystem sd(/*MOSI*/ D11, /*MISO*/ D12, /*SCK*/ D13, /*CS*/ D10, "sd");
+VS1053 mp3(/*MOSI*/ D11, /*MISO*/ D12, /*SCK*/ D13,
+ /*CS*/ D9, /*BSYNC*/ D8, /*DREQ*/ D7, /*RST*/ D6, /*SPI freq.*/ 6000000);
+HysteresisIn sens3(A3, HIGH_TO_LOW, LOW_TO_HIGH, 1); // Photo sensor #3 (Outer)
+HysteresisIn sens2(A2, HIGH_TO_LOW, LOW_TO_HIGH, 1); // Photo sensor #2
+HysteresisIn sens1(A1, HIGH_TO_LOW, LOW_TO_HIGH, 1); // Photo sensor #1
+HysteresisIn sens0(A0, HIGH_TO_LOW, LOW_TO_HIGH, 1); // Photo sensor #0 (Inner)
+LCD lcd(/*SDA*/ D107, /*SCL*/ D106, /*RESET*/ D105, /*Backlight*/ NC,
+ /*Contrast*/ 40);
+BusOut led(/*Red*/ P3, /*Yellow*/ P4, /*Green*/ P5, /*Blue*/ P6, /*White*/ P7);
+Ticker tic;
+
+const char *fileNameList[] = {
+ "",
+ "/sd/Track1.mp3",
+ "/sd/Track2.mp3",
+ "/sd/Track3.mp3",
+ "/sd/Track4.mp3"
+};
+
+volatile State state = READY;
+volatile Request request = NONE;
+
+/** Setups and initializations */
+void setup(void) {
+ // Initialize VS1053
+ mp3.hardwareReset();
+ mp3.clockUp();
+ wait(0.1);
+
+ // Setup LCD
+ lcd.reset();
+ lcd.cls();
+
+ // Initialize LCD
+ led = 0x00;
+}
+
+/** Read voltages from photo sensor pins and detect weightscale point code */
+int readPhotoSensors(void) {
+ uint8_t bitPattern;
+
+ // Read all photo sensor inputs
+ bitPattern = sens3.read() << 3
+ | sens2.read() << 2
+ | sens1.read() << 1
+ | sens0.read();
+
+ switch (bitPattern) {
+ // 1 when open, 0 when shut
+ // Higher bit is on outer side
+ case 0xf: // 1111: no load
+ return 0;
+ case 0xe: // 1110: slight load
+ return 1;
+ case 0xc: // 1100
+ return 2;
+ case 0x8: // 1000
+ return 3;
+ case 0x0: // 0000: heavy load
+ return 4;
+ default: // Other than expectation: erroneous pattern
+ return -1;
+ }
+}
+
+/** Poll/sample weightscale inputs and issue requests */
+void pollAndRequest() {
+ const char* stateNameList[] = {
+ "STOPPING", // -2
+ "CANCELING", // -1
+ "READY", // 0
+ "PLAYING1", // 1
+ "PLAYING2", // 2
+ "PLAYING3", // 3
+ "PLAYING4" // 4
+ };
+ const uint8_t ledPatternList[] = {
+ 0x10, // -1 STOP_REQUEST W----
+ 0x00, // 0 NONE -----
+ 0x01, // 1 PLAY1_REQUEST ----R
+ 0x02, // 2 PLAY2_REQUEST ---Y-
+ 0x04, // 3 PLAY3_REQUEST --G--
+ 0x08 // 4 PLAY4_REQUEST -B---
+ };
+ int code;
+ static int codePrev = 0;
+ static uint8_t holdTimes = 0;
+
+ // Get weightscale point code by reading photo sensors
+ code = readPhotoSensors();
+
+ // Count the times that the given code persists
+ if (code == codePrev && code != -1) {
+ if (holdTimes < 99) {
+ holdTimes++;
+ }
+ } else {
+ holdTimes = 0;
+ }
+ lcd.locate(0, 0);
+ lcd.printf("%-15s", stateNameList[state + 2]);
+ lcd.locate(0, 1);
+ lcd.printf("ps=%2d times=%2d", code, holdTimes);
+
+ // Once the point is stable enough, make a request
+ if (holdTimes == SETTLING_COUNT) {
+ if (code == 0) {
+ // Stable no load: stop request
+ request = STOP_REQUEST;
+ } else {
+ // Certain stable load: play request 1..4
+ // Ignore cases while playing the same track
+ if (state != code) {
+ request = (Request) code;
+ }
+ }
+ }
+
+ // Set LED as the request
+ led = ledPatternList[request + 1];
+
+ // Preserve this time's code
+ codePrev = code;
+}
+
+/** Player control in accordance with requests */
+void controlTrack() {
+ static FILE *fp = NULL;
+ size_t sizeRead = 0;
+ uint8_t buf[BLOCK_SIZE];
+ static size_t totalSizeSent = 0;
+
+ switch (state) {
+ case READY:
+ switch (request) {
+ case STOP_REQUEST:
+ // Clear stop request
+ request = NONE;
+ break;
+ case PLAY1_REQUEST: case PLAY2_REQUEST: case PLAY3_REQUEST: case PLAY4_REQUEST:
+ fp = fopen(fileNameList[request], "rb");
+ if (fp) {
+ totalSizeSent = 0;
+ state = (State) request;
+ lcd.locate(15, 0);
+ lcd.printf("*");
+ }
+ // Clear play request
+ request = NONE;
+ break;
+ default:
+ break;
+ }
+ break;
+ case PLAYING1: case PLAYING2: case PLAYING3: case PLAYING4:
+ if (request == NONE) {
+ if (feof(fp)) {
+ // Close the track
+ fclose(fp);
+ lcd.locate(15, 0);
+ lcd.printf(" ");
+
+ // Invoke play request again
+ request = (Request) state;
+ state = READY;
+ } else {
+ sizeRead = fread(buf, sizeof(char), BLOCK_SIZE, fp);
+ totalSizeSent += mp3.sendDataBlock(buf, sizeRead);
+ }
+ } else {
+ // Cancel current track when something's requested
+ fclose(fp);
+ lcd.locate(15, 0);
+ lcd.printf(" ");
+ state = CANCELING;
+ }
+ break;
+ case CANCELING:
+ if (mp3.sendCancel()) {
+ state = STOPPING;
+ }
+ break;
+ case STOPPING:
+ if (mp3.stop()) {
+ state = READY;
+ }
+ if (request == STOP_REQUEST) {
+ // Clear stop request
+ request = NONE;
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+/** Main routine */
+int main(void) {
+ FILE *fpTest = NULL;
+ time_t secBuild;
+ struct tm *tmBuild;
+ char sbuf[10];
+ bool sdTestResult = 0x00;
+
+ setup();
+
+ // Print build timestamp (in JST)
+ secBuild = MBED_BUILD_TIMESTAMP + 9 * 60 * 60;
+ tmBuild = localtime(&secBuild);
+
+ strftime(sbuf, 10, "%Y-%m-%d", tmBuild);
+ lcd.locate(0, 0);
+ lcd.printf("Build %8s", sbuf);
+ wait(0.0);
+ strftime(sbuf, 10, "%H:%M:%S", tmBuild);
+ lcd.locate(0, 1);
+ lcd.printf(" T%8s", sbuf);
+ wait(2.0);
+
+ // SD card test
+ lcd.cls();
+ lcd.locate(0, 0);
+ lcd.printf("No memory cards ");
+ wait(0.0);
+ lcd.locate(0, 0);
+ lcd.printf("Track / / / Ok");
+ for (uint8_t i = 1; i <= 4; i++) {
+ fpTest = fopen(fileNameList[i], "rb");
+ if (fpTest) {
+ lcd.locate(2 * i + 4, 0);
+ lcd.printf("%d", i);
+ fclose(fpTest);
+ } else {
+ sdTestResult |= 0x01 << (i - 1);
+ }
+ }
+ lcd.locate(0, 1);
+ if (sdTestResult == 0x00) {
+ lcd.printf("SD Test Pass ");
+ } else {
+ lcd.printf("SD Test Fail ");
+ while (1) {
+ led = sdTestResult;
+ wait(0.5);
+ led = 0x00;
+ wait(0.5);
+ }
+ }
+ wait(1.0);
+ lcd.cls();
+
+ // Set Ticker interrupt routine
+ tic.attach(&pollAndRequest, POLL_INTERVAL_SEC);
+
+ // Main loop
+ while (1) {
+ controlTrack();
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Dec 20 21:35:07 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/f37f3b9c9f0b \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/pinalias.h Fri Dec 20 21:35:07 2013 +0000 @@ -0,0 +1,40 @@ +#ifndef PIN_ALIAS_H_ +#define PIN_ALIAS_H_ + +// Pin aliases for KL25Z +#define D100 PTC7 +#define D101 PTC0 +#define D102 PTC3 +#define D103 PTC4 +#define D104 PTC5 +#define D105 PTC6 +#define D106 PTC10 +#define D107 PTC11 +#define D108 PTC12 +#define D109 PTC13 +#define D110 PTC16 +#define D111 PTC17 +#define D112 PTA16 +#define D113 PTA17 +#define D114 PTE31 +#define D115 NC +#define D116 PTD6 +#define D117 PTD7 + +#define A10 PTC20 +#define A11 PTC21 +#define A12 PTC22 +#define A13 PTC23 +#define A14 PTC29 +#define A15 PTC30 + +#define P0 PTB8 +#define P1 PTB9 +#define P2 PTB10 +#define P3 PTB11 +#define P4 PTE2 +#define P5 PTE3 +#define P6 PTE4 +#define P7 PTE5 + +#endif