Kaoru Onoe
MP3-capable chair with sensor-embedded weight scale.
Dependencies: ACM1602 SDFileSystem VS1053 mbed ClockControl PowerControl
Revision 0:d9789f57fd9d, committed 2014-03-26
- Comitter:
- kayekss
- Date:
- Wed Mar 26 19:56:18 2014 +0000
- Child:
- 1:ef257d63d970
- Commit message:
- MP3-capable chair with sensor-embedded weight scale.
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ACM1602.lib Wed Mar 26 19:56:18 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/kayekss/code/ACM1602/#f81621685b23
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HysteresisIn.lib Wed Mar 26 19:56:18 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/kayekss/code/HysteresisIn/#fe43537bd3d6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Wed Mar 26 19:56:18 2014 +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 Wed Mar 26 19:56:18 2014 +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 Wed Mar 26 19:56:18 2014 +0000
@@ -0,0 +1,77 @@
+#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;
+
+PinName const xp5 = P0_9; // SPI1 + MOSI
+PinName const xp6 = P0_8; // | MISO
+PinName const xp7 = P0_7; // | SCK
+PinName const xp8 = P0_6; // | SSEL#
+PinName const xp9 = P0_0; // UART3+ Tx I2C1 + SDA
+PinName const xp10 = P0_1; // | Rx | SCL
+PinName const xp11 = P0_18; // SPI0 + MOSI
+PinName const xp12 = P0_17; // | MISO
+PinName const xp13 = P0_15; // UART1+ Tx | SCK
+PinName const xp14 = P0_16; // | Rx | SSEL#
+PinName const xp15 = P0_23; // AnalogIn
+PinName const xp16 = P0_24; // AnalogIn
+PinName const xp17 = P0_25; // AnalogIn
+PinName const xp18 = P0_26; // AnalogIn AnalogOut
+PinName const xp19 = P1_30; // AnalogIn
+PinName const xp20 = P1_31; // AnalogIn
+PinName const xp21 = P0_2;
+PinName const xp22 = P0_3;
+PinName const xp23 = P0_21;
+PinName const xp24 = P0_22;
+PinName const xp25 = P0_27; // **Open drain
+PinName const xp26 = P0_28; // **Open drain
+PinName const xp27 = P2_13;
+PinName const xp53 = P2_12;
+PinName const xp52 = P2_11;
+PinName const xp51 = P2_10;
+PinName const xp50 = P2_8;
+PinName const xp49 = P2_7;
+PinName const xp48 = P2_6;
+PinName const xp47 = P2_5; // PwmOut
+PinName const xp46 = P2_4; // PwmOut
+PinName const xp45 = P2_3; // PwmOut
+PinName const xp44 = P2_2; // PwmOut
+PinName const xp43 = P2_1; // PwmOut
+PinName const xp42 = P2_0; // PwmOut
+PinName const xp41 = P0_11; // UART2+ Rx I2C2 + SCL
+PinName const xp40 = P0_10; // | Tx | SDA
+PinName const xp39 = P0_5; // CAN + TD
+PinName const xp38 = P0_4; // | RD
+PinName const LED0 = P0_22;
+
+#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Mar 26 19:56:18 2014 +0000
@@ -0,0 +1,294 @@
+#include <stdio.h>
+#include "mbed.h"
+#include "defs.h"
+#include "HysteresisIn.h"
+#include "SDFileSystem.h"
+#include "VS1053.h"
+#include "ACM1602.h"
+
+// Pin settings for LPC1768(LPCXpresso)
+SDFileSystem sd(/*MOSI*/ xp11, /*MISO*/ xp12, /*SCK*/ xp13, /*CS*/ xp53, /*Mountpoint*/ "sd");
+VS1053 mp3(/*MOSI*/ xp11, /*MISO*/ xp12, /*SCK*/ xp13,
+ /*CS*/ xp52, /*BSYNC*/ xp51, /*DREQ*/ xp50, /*RST*/ xp49, /*SPI freq.*/ 6000000);
+HysteresisIn sens3(p17, HIGH_TO_LOW, LOW_TO_HIGH, 1); // Photo sensor #3 (Outer)
+HysteresisIn sens2(p18, HIGH_TO_LOW, LOW_TO_HIGH, 1); // Photo sensor #2
+HysteresisIn sens1(p19, HIGH_TO_LOW, LOW_TO_HIGH, 1); // Photo sensor #1
+HysteresisIn sens0(p20, HIGH_TO_LOW, LOW_TO_HIGH, 1); // Photo sensor #0 (Inner)
+ACM1602 lcd(/*SDA*/ xp9, /*SCL*/ xp10, /*Address*/ 0xa0);
+DigitalOut led(LED0);
+DigitalOut audioPower(xp38);
+Ticker tic;
+
+// Pin settings for LPC1114FN28 (SD card accessing does not work)
+// SDFileSystem sd(/*MOSI*/ dp2, /*MISO*/ dp1, /*SCK*/ dp6, /*CS*/ dp4, /*Mountpoint*/ "sd");
+// VS1053 mp3(/*MOSI*/ dp2, /*MISO*/ dp1, /*SCK*/ dp6,
+// /*CS*/ dp14, /*BSYNC*/ dp17, /*DREQ*/ dp18, /*RST*/ dp25, /*SPI freq.*/ 4000000);
+// HysteresisIn sens3(dp9, HIGH_TO_LOW, LOW_TO_HIGH, 1); // Photo sensor #3 (Outer)
+// HysteresisIn sens2(dp10, HIGH_TO_LOW, LOW_TO_HIGH, 1); // Photo sensor #2
+// HysteresisIn sens1(dp11, HIGH_TO_LOW, LOW_TO_HIGH, 1); // Photo sensor #1
+// HysteresisIn sens0(dp13, HIGH_TO_LOW, LOW_TO_HIGH, 1); // Photo sensor #0 (Inner)
+// ACM1602 lcd(/*SDA*/ dp5, /*SCL*/ dp27, /*Address*/ 0xa0);
+// 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;
+
+/** Setup and initializations */
+void setup(void) {
+ // Initialize VS1053
+ mp3.hardwareReset();
+ mp3.clockUp();
+ wait(0.1);
+
+ // Initialize power supply for audio amplifier circuit
+ audioPower = 0;
+
+ // Setup LCD
+ lcd.init();
+
+ // Initialize LED
+ led = 0;
+}
+
+/** 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
+ };
+ 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;
+ }
+ }
+ }
+
+ // 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 - 1], "rb");
+ if (fp) {
+ // Power supply on
+ audioPower = 1;
+ led = 1;
+
+ totalSizeSent = 0;
+ state = (State) request;
+ lcd.locate(15, 0);
+ lcd.printf("*");
+ } else {
+ lcd.locate(0, 1);
+ lcd.printf("File Open Error ");
+ }
+ // Clear play request
+ request = NONE;
+ break;
+ default:
+ break;
+ }
+ break;
+ case PLAYING1: case PLAYING2: case PLAYING3: case PLAYING4:
+ if (request == NONE) {
+ sizeRead = fread(buf, sizeof(uint8_t), BLOCK_SIZE, fp);
+ if (sizeRead) {
+ totalSizeSent += mp3.sendDataBlock(buf, sizeRead);
+ } else {
+ // Close the track
+ fclose(fp);
+ lcd.locate(15, 0);
+ lcd.printf(" ");
+
+ // Invoke play request again
+ request = (Request) state;
+ state = READY;
+ }
+ } 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;
+
+ // Power supply off
+ audioPower = 0;
+ led = 0;
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+/** Print build timestamp (in JST) */
+void printTimestamp() {
+ time_t secBuild;
+ struct tm *tmBuild;
+ char sbuf[11];
+
+ secBuild = MBED_BUILD_TIMESTAMP + 9 * 60 * 60;
+ tmBuild = localtime(&secBuild);
+
+ strftime(sbuf, 11, "%Y-%m-%d", tmBuild);
+ lcd.locate(0, 0);
+ lcd.printf("Build %8s", sbuf);
+ wait(0.0);
+ strftime(sbuf, 11, "%H:%M:%S", tmBuild);
+ lcd.locate(0, 1);
+ lcd.printf(" T%8s", sbuf);
+ wait(2.0);
+}
+
+/** Test files in the SD memory card */
+uint8_t testFiles() {
+ FILE *fpTest = NULL;
+ bool sdTestResult = 0x00;
+
+ 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 - 1], "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 ");
+ wait(1.0);
+ lcd.cls();
+ } else {
+ lcd.printf("SD Test Fail ");
+ }
+ return sdTestResult;
+}
+
+/** Main routine */
+int main(void) {
+ setup();
+
+ // Print build timestamp
+ printTimestamp();
+
+ // Test files: Enter an infinite loop on failure
+ if (testFiles()) {
+ while (1) {
+ led = 1;
+ wait(0.5);
+ led = 0;
+ wait(0.5);
+ }
+ }
+
+ // 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 Wed Mar 26 19:56:18 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/7d30d6019079 \ No newline at end of file