Difference between revisions of "Clap Light Project (X02)"

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1. Connect [[mCookie-Core|mCookie Core]] to the PC with the USB Cable. Open the Microduino IDE.
 
1. Connect [[mCookie-Core|mCookie Core]] to the PC with the USB Cable. Open the Microduino IDE.
  
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2. Copy and paste the code below and upload.
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2. Download the project file and unzip: '''<big>[[File:Clap_Light_X02.zip]]</big>'''.
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*Using the Microduino IDE and go to '''File > Open...''' and navigate to the unzipped folder. Open the '''Clap_Light_X02.ino''' file.  
  
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<source lang="cpp">
 
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#include <stdint.h>
 
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#define MIC_PIN A2
 
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#define BUZZER_PIN 6
 
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#define LED_PIN A0
 
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//The minimum amount of clap loudness to be registered as a clap
 
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const uint16_t CLAP_LOUDNESS_THRESHOLD = 400;
 
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//The maximum loudness between the two claps
 
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const uint16_t SILENT_LOUDNESS_THRESHOLD = 200;
 
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//The amount of time from the detection of the first clap until testing if there is silence
 
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const uint16_t PAUSE_TIME = 250;
 
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volatile uint16_t mic_value;
 
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unsigned long second_clap_timer;
 
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bool leds_are_on = false;
 
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void setup() {
 
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  pinMode(LED_PIN, OUTPUT);
 
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  Serial.begin(9600);
 
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  // put your setup code here, to run once:
 
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  pinMode(MIC_PIN, INPUT);
 
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  pinMode(BUZZER_PIN, OUTPUT);
 
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}
 
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void loop() {
 
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  // put your main code here, to run repeatedly:
 
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  //Take in mic reading for the first clap
 
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  uint16_t mic_value = analogRead(MIC_PIN);
 
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  //Check if it is greater than the threadhold
 
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  if ( mic_value > CLAP_LOUDNESS_THRESHOLD ) {
 
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    Serial.println("First clap detected!");
 
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    delay(PAUSE_TIME); //Wait PAUSE_TIME
 
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    //Read in a new mic value for the silence between the claps
 
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    mic_value = analogRead(mic_value);
 
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    Serial.println(mic_value);
 
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    //If the value is under the threshold, then it is silent
 
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    if ( mic_value < SILENT_LOUDNESS_THRESHOLD ) {
 
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      Serial.println("Silence detected!");
 
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      //wait a bit of time beforce looking for the second clap
 
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      //delay(PAUSE_TIME);
 
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      second_clap_timer = millis();
 
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      while(((millis() - second_clap_timer) < 2000)){
 
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        mic_value = analogRead(MIC_PIN);
 
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        if(mic_value > CLAP_LOUDNESS_THRESHOLD){
 
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          Serial.println("Second clap detected!");
 
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          tone(BUZZER_PIN, 3038, 200);
 
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          if( leds_are_on == false ){
 
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            activate_light();
 
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          }
 
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          else{
 
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            deactivate_light();
 
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          }
 
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          delay(1000);
 
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          break;
 
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        }
 
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      }
 
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    }
 
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  }
 
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  delay(1);
 
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}
 
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void activate_light() {
 
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  digitalWrite(LED_PIN, HIGH);
 
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  leds_are_on = true;
 
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}
 
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void deactivate_light() {
 
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  digitalWrite(LED_PIN, LOW);
 
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  leds_are_on = false;
 
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  return;
 
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}
 
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</source>
 
 
3. Select the board, processor and port:
 
3. Select the board, processor and port:
 
*Go to '''Tools > Board'''  and select '''Microduino/mCookie-Core (328p)'''
 
*Go to '''Tools > Board'''  and select '''Microduino/mCookie-Core (328p)'''
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*Go to '''Tools > Port''' and select the available port
 
*Go to '''Tools > Port''' and select the available port
 
4. Upload the program by clicking on the '''right arrow icon''' on the top left of the window. Or under '''Sketch > Upload'''.
 
4. Upload the program by clicking on the '''right arrow icon''' on the top left of the window. Or under '''Sketch > Upload'''.
 +
 +
'''NOTE''': If not using the default Core module included in the kits, please follow the '''[[Selecting_board,_processor,_and_port|selecting the board and processor guide]]'''.
 +
 
=Debugging=
 
=Debugging=
 
*Open the Serial monitor. Information will print out when the first clap is detected as "First clap detected!".  
 
*Open the Serial monitor. Information will print out when the first clap is detected as "First clap detected!".  
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=Tweaking=
 
=Tweaking=
 
Variables can be edited to change the threshold / detection value for various functions to better fine tune to your environment.  
 
Variables can be edited to change the threshold / detection value for various functions to better fine tune to your environment.  
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 +
'''DEBUG''' un-comment to debug.
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'''MIC_PIN''' defines the pin that connects to the Microphone.
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'''BUZZER_PIN''' defines the pin that connects to the Buzzer.
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'''LED_PIN''' defines the pin that connects to the LED.
  
 
'''CLAP_LOUDNESS_THRESHOLD''' will change the clapping loudness trigger point. Lower values means a weaker noise level is detected as a clap.  
 
'''CLAP_LOUDNESS_THRESHOLD''' will change the clapping loudness trigger point. Lower values means a weaker noise level is detected as a clap.  

Latest revision as of 21:35, 1 May 2017

Clap Light Project Build

About

This project uses the Microphone to detect clapping noises and turns on or off the LED if it senses two claps with a second pause inbetween.

This project was designed for the second generation mCookie Maker kits (102 Basic, 202 Advanced and 302 Expert kits).

Required Materials

  • 1 x mCookie Core
  • 1 x mCookie USB TTL (102 Kit) or 1 x mBattery (202/302 Kit)
  • 1 x mCookie Sensor Hub
  • 1 x Single ColorLED
  • 1 x Microphone Sensor
  • 1 x Buzzer
  • 3 x Sensor Cable
  • 1 x MicroUSB Cable

Build

NOTE: When connecting sensor wires, push on the plastic connector and not on the wires. Pushing on the wire can damage them.

  1. Connect the Single ColorLED to the Sensor Hub on Pin A0/A1
  2. Connect the Buzzer to the Sensor Hub on Pin 6/7
  3. Connect the Microphone to the Sensor Hub on Pin A2/A3
  4. Grab the mCookie USBTTL or mBattery and Stack the mCookie Core on top.
  5. Stack the mCookie Sensor on top of that.
  6. Plug in the MicroUSB cable to the mCookie USBTTL or mBattery to a computer.

Program

1. Connect mCookie Core to the PC with the USB Cable. Open the Microduino IDE.

2. Download the project file and unzip: File:Clap Light X02.zip.

  • Using the Microduino IDE and go to File > Open... and navigate to the unzipped folder. Open the Clap_Light_X02.ino file.

3. Select the board, processor and port:

  • Go to Tools > Board and select Microduino/mCookie-Core (328p)
  • Go to Tools > Processor and select Atmega328P16M,5V
  • Go to Tools > Port and select the available port

4. Upload the program by clicking on the right arrow icon on the top left of the window. Or under Sketch > Upload.

NOTE: If not using the default Core module included in the kits, please follow the selecting the board and processor guide.

Debugging

  • Open the Serial monitor. Information will print out when the first clap is detected as "First clap detected!".
  • Then a value will print out which is the silent value. If it is under the threshold, "Silence detected!" will print.
  • "Second clap detected!" will print if it detected a second clap.

Tweaking

Variables can be edited to change the threshold / detection value for various functions to better fine tune to your environment.

DEBUG un-comment to debug.

MIC_PIN defines the pin that connects to the Microphone.

BUZZER_PIN defines the pin that connects to the Buzzer.

LED_PIN defines the pin that connects to the LED.

CLAP_LOUDNESS_THRESHOLD will change the clapping loudness trigger point. Lower values means a weaker noise level is detected as a clap.

  • Adjustable between 0 ~ 1023
  • Default is 400

SILENT_LOUDNESS_THRESHOLD will change the silent registry level. Higher values will mean that higher noise levels will be registered as a silence.

  • Adjustable between 0 ~ 1023
  • Default is 200

PAUSE_TIME will change the time in which you are required to pause between claps in milliseconds. Lower values will detect faster claps, but there is settling time on the Microphone, which means too short of a pause time won't be detectable as silence.

  • Default is 200 milliseconds (1/5 of a second)

Usage

Clap once, wait about 1 second, then clap another time. The LED should turn on and a beep noise will occur. Repeating the sequence will turn off the LED.

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