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[[Datei:Chime.jpg|360px|right|thumb|HackFFM-Duino Chime alpha version]]
 +
by: [[Benutzer:DCEM|DCEM]]
  
 
== Motivation ==
 
== Motivation ==
[[Benutzer:LeandraChristine|LeandraChristine]] needed a small solution for a project. Since I was designing lots of PCB’s anyway I decided to also realize this one.
+
[[Benutzer:LeandraChristine|LeandraChristine]] needed a small solution for sound in a project.  
 +
Since I was designing lots of PCB’s anyway I decided to also realize this one.
 +
Another requirement was fast responsiveness. The [[SimpleSDAudio]]-library from [[Benutzer:Tut|Tut]] provides just that. [[Benutzer:Tut|Tut]] helped quite a lot with the circuit design in this project.
  
Its es ment to be used with the [[SimpleSDAudio]]-library from [[Benutzer:Tut|Tut]], who helped quite a lot with the circuit design in this project.
+
We did a [[Reflow Workshop]] to build plenty of them.
  
 +
== Features ==
 
The board is carrying:
 
The board is carrying:
Atmega328
+
* Atmega328
MAX9098306 3.7W stereo Class D amplifier
+
* MAX9098306 3.7W stereo Class D amplifier
SN74LVC2G14 dual Schmitt-Trigger with its own low noise power supply
+
* SN74LVC2G14 dual Schmitt-Trigger with its own low noise power supply
microSD-Card Slot
+
* microSD-Card Slot
74LVC1G53DP Analog Switch, to set the gain of the Class D amplifier (3 levels)
+
* 74LVC1G53DP Analog Switch, to set the gain of the Class D amplifier (3 levels)
  
  
 
The controller itself is running on 3.3V (because of the SD-Card). The supply voltage is 5V.
 
The controller itself is running on 3.3V (because of the SD-Card). The supply voltage is 5V.
 +
 +
Choose between 8bit Stereo or 16bit mono Sound.
 +
 +
Board size: 15 x 30mm(0.6 x 1.2 inches)
 +
 +
8 Pins are accessible including i²C PINS
 +
 +
== Connections ==
 +
[[Datei:ChimeConnections.png]]
 +
 +
 +
== Design Files ==
 +
 +
[https://github.com/DCEM/HackFFM-Duino-Chime HackFFM-Duino-Chime on GitHub]
 +
 +
 +
== Arduino code (for use with SimpleSDAudio library) ==
 +
<pre>
 +
/*
 +
Simple SD Audio bare minimum example, plays file EX1.MIX from root folder of SD card.
 +
 +
This example shows how to use the SimpleSDAudio library with Chime
 +
http://hackerspace-ffm.de/wiki/index.php?title=HackFFM-Duino_Chime
 +
 +
See SimpleSDAudio.h or our website for more information:
 +
http://www.hackerspace-ffm.de/wiki/index.php?title=SimpleSDAudio
 +
 +
created  27 Sep 2015 by Lutz Lisseck
 +
*/
 +
#include <SimpleSDAudio.h>
 +
 +
/* Chime Special function block start */
 +
#define CHIME_GAIN_SW  2
 +
#define CHIME_GAIN_EN  A3
 +
#define CHIME_SPK_EN  A1
 +
#define CHIME_LED      5
 +
#define CHIME_SD_DET  8
 +
#define CHIME_SD_CS    4
 +
/* gain 0 off, 1 quiet, 2 loud */
 +
void setupChime(unsigned char gain) {
 +
  pinMode(CHIME_GAIN_SW, OUTPUT); 
 +
  pinMode(CHIME_GAIN_EN, OUTPUT);
 +
  pinMode(CHIME_SPK_EN, OUTPUT);
 +
  pinMode(CHIME_LED, OUTPUT); digitalWrite(CHIME_LED, LOW);
 +
  pinMode(CHIME_SD_DET, INPUT_PULLUP);
 +
  switch(gain) {
 +
    case 0: // off
 +
      digitalWrite(CHIME_SPK_EN, LOW);
 +
      digitalWrite(CHIME_GAIN_EN, HIGH);
 +
      digitalWrite(CHIME_GAIN_SW, LOW);
 +
      break;
 +
    case 1: // soft
 +
      digitalWrite(CHIME_SPK_EN, HIGH);
 +
      digitalWrite(CHIME_GAIN_EN, HIGH);
 +
      digitalWrite(CHIME_GAIN_SW, LOW);
 +
      break;
 +
    default: // loud
 +
      digitalWrite(CHIME_SPK_EN, HIGH);
 +
      digitalWrite(CHIME_GAIN_EN, LOW);
 +
      digitalWrite(CHIME_GAIN_SW, HIGH);
 +
      break;     
 +
  }
 +
  SdPlay.setSDCSPin(CHIME_SD_CS);
 +
}
 +
/* Chime Special function block end */
 +
 +
void setup()
 +
{
 +
  // Open serial communications and wait for port to open:
 +
  Serial.begin(9600);
 +
 +
  setupChime(2);
 +
 
 +
  // Using F("...") to avoid wasting RAM 
 +
  Serial.print(F("\nInitializing SD card...")); 
 +
 
 +
  if (!SdPlay.init(SSDA_MODE_FULLRATE | SSDA_MODE_STEREO | SSDA_MODE_AUTOWORKER)) {
 +
    Serial.println(F("initialization failed. Is FAT formated card inserted?"));
 +
    Serial.print(F("Error code: "));
 +
    Serial.println(SdPlay.getLastError());
 +
    while(1);
 +
  } else {
 +
  Serial.println(F("Wiring is correct and a card is present."));
 +
  }
 +
 +
  Serial.print(F("Looking for EX1.MIX... "));
 +
  if(!SdPlay.setFile("EX1.MIX")) {
 +
    Serial.println(F(" not found on card! Error code: "));
 +
    Serial.println(SdPlay.getLastError());
 +
    while(1);
 +
  } else {
 +
  Serial.println(F("found."));
 +
  }   
 +
 +
  Serial.print(F("Playing... "));
 +
  SdPlay.play();
 +
  while(!SdPlay.isStopped()) {
 +
    ; // no worker needed anymore :-)
 +
    delay(500);
 +
    digitalWrite(CHIME_LED, !digitalRead(CHIME_LED));
 +
  }
 +
  Serial.println(F("done."));
 +
  SdPlay.deInit();
 +
}
 +
 +
void loop(void) {
 +
 +
}
 +
</pre>
 +
  
 
== License ==
 
== License ==
 +
 +
Licensing CC v4.0 Share-Alike (http://creativecommons.org/licenses/by-sa/4.0/)
 +
 +
I started out with the open log design. Although there is not much left of it, it was some help.
 +
 +
I also used libraries from sparkfun and adafruit.
 +
 +
[[Kategorie:Projekte]]

Version vom 27. September 2015, 12:31 Uhr

HackFFM-Duino Chime alpha version

by: DCEM

Motivation

LeandraChristine needed a small solution for sound in a project. Since I was designing lots of PCB’s anyway I decided to also realize this one. Another requirement was fast responsiveness. The SimpleSDAudio-library from Tut provides just that. Tut helped quite a lot with the circuit design in this project.

We did a Reflow Workshop to build plenty of them.

Features

The board is carrying:

  • Atmega328
  • MAX9098306 3.7W stereo Class D amplifier
  • SN74LVC2G14 dual Schmitt-Trigger with its own low noise power supply
  • microSD-Card Slot
  • 74LVC1G53DP Analog Switch, to set the gain of the Class D amplifier (3 levels)


The controller itself is running on 3.3V (because of the SD-Card). The supply voltage is 5V.

Choose between 8bit Stereo or 16bit mono Sound.

Board size: 15 x 30mm(0.6 x 1.2 inches)

8 Pins are accessible including i²C PINS

Connections

ChimeConnections.png


Design Files

HackFFM-Duino-Chime on GitHub


Arduino code (for use with SimpleSDAudio library)

/*
 Simple SD Audio bare minimum example, plays file EX1.MIX from root folder of SD card.
 
 This example shows how to use the SimpleSDAudio library with Chime
 http://hackerspace-ffm.de/wiki/index.php?title=HackFFM-Duino_Chime
 
 See SimpleSDAudio.h or our website for more information:
 http://www.hackerspace-ffm.de/wiki/index.php?title=SimpleSDAudio
 
 created  27 Sep 2015 by Lutz Lisseck
 */
#include <SimpleSDAudio.h>

/* Chime Special function block start */
#define CHIME_GAIN_SW  2
#define CHIME_GAIN_EN  A3
#define CHIME_SPK_EN   A1
#define CHIME_LED      5
#define CHIME_SD_DET   8
#define CHIME_SD_CS    4
/* gain 0 off, 1 quiet, 2 loud */
void setupChime(unsigned char gain) {
  pinMode(CHIME_GAIN_SW, OUTPUT);  
  pinMode(CHIME_GAIN_EN, OUTPUT);
  pinMode(CHIME_SPK_EN, OUTPUT);
  pinMode(CHIME_LED, OUTPUT); digitalWrite(CHIME_LED, LOW);
  pinMode(CHIME_SD_DET, INPUT_PULLUP);
  switch(gain) {
    case 0: // off
      digitalWrite(CHIME_SPK_EN, LOW);
      digitalWrite(CHIME_GAIN_EN, HIGH);
      digitalWrite(CHIME_GAIN_SW, LOW);
      break;
    case 1: // soft
      digitalWrite(CHIME_SPK_EN, HIGH);
      digitalWrite(CHIME_GAIN_EN, HIGH);
      digitalWrite(CHIME_GAIN_SW, LOW);
      break;
    default: // loud
      digitalWrite(CHIME_SPK_EN, HIGH);
      digitalWrite(CHIME_GAIN_EN, LOW);
      digitalWrite(CHIME_GAIN_SW, HIGH);
      break;       
  }
  SdPlay.setSDCSPin(CHIME_SD_CS);
}
/* Chime Special function block end */

void setup()
{
  // Open serial communications and wait for port to open:
  Serial.begin(9600);

  setupChime(2);
  
  // Using F("...") to avoid wasting RAM  
  Serial.print(F("\nInitializing SD card..."));  
  
  if (!SdPlay.init(SSDA_MODE_FULLRATE | SSDA_MODE_STEREO | SSDA_MODE_AUTOWORKER)) {
    Serial.println(F("initialization failed. Is FAT formated card inserted?"));
    Serial.print(F("Error code: "));
    Serial.println(SdPlay.getLastError());
    while(1);
  } else {
   Serial.println(F("Wiring is correct and a card is present.")); 
  }

  Serial.print(F("Looking for EX1.MIX... "));
  if(!SdPlay.setFile("EX1.MIX")) {
    Serial.println(F(" not found on card! Error code: "));
    Serial.println(SdPlay.getLastError());
    while(1);
  } else {
   Serial.println(F("found.")); 
  }    

  Serial.print(F("Playing... ")); 
  SdPlay.play();
  while(!SdPlay.isStopped()) {
    ;	// no worker needed anymore :-)
    delay(500);
    digitalWrite(CHIME_LED, !digitalRead(CHIME_LED));
  }
  Serial.println(F("done."));
  SdPlay.deInit();
}

void loop(void) {

}


License

Licensing CC v4.0 Share-Alike (http://creativecommons.org/licenses/by-sa/4.0/)

I started out with the open log design. Although there is not much left of it, it was some help.

I also used libraries from sparkfun and adafruit.