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[on:]

MES v1 stands for: Minimal Experiment Shield Version 1

 Possible Experiments with the MES V1, could be:

E1-  Digital Counter (Up - Down)
E2 - 1 Nible Counter
E3 - Swaping bits
E4 - Odd - Even Nible
E5 - Nible Vumeter with a Preset
E6 - Controling a MiniServo with a Preset
E7 - Understandig Analog Inputs with a Preset and Display

This is the fisrt version of the MES. What do you think? This could be useful  for worshops.
 


:-?

[Reply #1 on:]

If this is an Arduino shield, don't you want to use the analog pins (A0-A5) of the Arduino (meaning that you would need headers on the bottom right part of the shield)?

Do you have schematics to show?

[Reply #2 on:]

MES v1.4 stands for: Minimal Experiment Shield Version 1.4

 Possible Experiments with the MES V1.4, could be:

E1-  Digital Counter (Up - Down)
E2 - 1 Nible Counter
E3 - Swaping bits
E4 - Odd - Even Nible
E5 - Nible Vumeter with a Preset
E6 - Controling a MiniServo with a Preset
E7 - Understandig Analog Inputs with a Preset and Display
E8 - Simulating an Interrupt

:-?

Good, here again, I've made the board in one sigle layer. Fig. 1 , now it's working fine. Some pics of the shield. Fig 2 the shield itself. Fig 3 Arduino Duemilanove with the shield.

Fig.1


Fig.2


Fig.3


A small video testing the board with the code show below.

Code:

#include <Servo.h>

Servo MiServo;

int p0 = 0;
int p1 = 1;
int p2 = 2;
int p3 = 3;

int p4 = 4;
int p5 = 5;
int p6 = 6;
int p7 = 7;

int pm = 9;

int An0 = 0;

int Data;


void setup(){

pinMode (p0,OUTPUT);  
pinMode (p1,OUTPUT);  
pinMode (p2,OUTPUT);
pinMode (p3,OUTPUT);

pinMode (p4,OUTPUT);  
pinMode (p5,OUTPUT);  
pinMode (p6,OUTPUT);
pinMode (p7,OUTPUT);

digitalWrite (p0,0);
digitalWrite (p1,0);
digitalWrite (p2,0);
digitalWrite (p3,0);

digitalWrite (p4,0);
digitalWrite (p5,0);
digitalWrite (p6,0);
digitalWrite (p7,0);

MiServo.attach(pm);

}


void loop(){
  
  Data = analogRead (An0);
  Data = map(Data,0,1024,0,255);

if ((Data >= 0) && (Data <= 64)){
 
  leds(0);
  disp(0);
  MiServo.write (0);
  delay (1000);
  
}else if ((Data >= 65) && (Data <= 127)){
 
  leds(1);
  disp(1);
  MiServo.write (45);
  delay (1000);
  
}else if ((Data >= 128) && (Data <= 191)){
 
  leds(2);
  disp(2);
  MiServo.write (90);
  delay (1000);
  
}else if ((Data >= 192) && (Data <= 255)){
 
  leds(3);
  disp(3);
  MiServo.write (135);
  delay (1000);
  
}



}


void leds (int i){
  
switch (i){
  
  case 0:

digitalWrite (p0,0);
digitalWrite (p1,0);
digitalWrite (p2,0);
digitalWrite (p3,0);

break;


  case 1:

digitalWrite (p0,1);
digitalWrite (p1,0);
digitalWrite (p2,0);
digitalWrite (p3,0);

break;  
  
  case 2:
  
digitalWrite (p0,0);
digitalWrite (p1,1);
digitalWrite (p2,0);
digitalWrite (p3,0);

break;

  case 3:

digitalWrite (p0,0);
digitalWrite (p1,0);
digitalWrite (p2,1);
digitalWrite (p3,0);

break;

  case 4:

digitalWrite (p0,0);
digitalWrite (p1,0);
digitalWrite (p2,0);
digitalWrite (p3,1);

break;

  }

}

void disp(int k){
  
  switch (k) {
  
  case 0:

  digitalWrite (p4,0);
  digitalWrite (p5,0);
  digitalWrite (p6,0);
  digitalWrite (p7,0);
  
  break;
  
  
  case 1:

  digitalWrite (p4,0);
  digitalWrite (p5,0);
  digitalWrite (p6,0);
  digitalWrite (p7,1);
  
  break;
    
  case 2:

  digitalWrite (p4,0);
  digitalWrite (p5,0);
  digitalWrite (p6,1);
  digitalWrite (p7,0);
  
  break;
    
  case 3:

  digitalWrite (p4,0);
  digitalWrite (p5,0);
  digitalWrite (p6,1);
  digitalWrite (p7,1);
  
  break;
  
  case 4:

  digitalWrite (p4,0);
  digitalWrite (p5,1);
  digitalWrite (p6,0);
  digitalWrite (p7,0);
  
  break;
  
  case 5:

  digitalWrite (p4,0);
  digitalWrite (p5,1);
  digitalWrite (p6,0);
  digitalWrite (p7,1);
  
  break;
  
  
  case 6:

  digitalWrite (p4,0);
  digitalWrite (p5,1);
  digitalWrite (p6,1);
  digitalWrite (p7,0);
  
  break;
  
  case 7:

  digitalWrite (p4,0);
  digitalWrite (p5,1);
  digitalWrite (p6,1);
  digitalWrite (p7,1);
  
  break;
  
  case 8:

  digitalWrite (p4,1);
  digitalWrite (p5,0);
  digitalWrite (p6,0);
  digitalWrite (p7,0);
  
  break;
  
  
  case 9:

  digitalWrite (p4,1);
  digitalWrite (p5,0);
  digitalWrite (p6,0);
  digitalWrite (p7,1);
  
  break;
  
  }
  
}

[Reply #3 on:]

Nice , A lot of stuff can be experimented using this.

[Reply #4 on:]

After testing and analizing the functionality of the Minimal Experimental Shield, I had order pro PCBs. This is the result, in a couple of days I'm going to work on a small manual.



 

[Reply #5 on:]

Just an update.

MES V1.6 with components.



Comments ?

 

[Reply #6 on:]

Assembling finished.


Fig. 1 - MES v1.6


Fig. 2 - MES v1.6 with Arduino Duemilanove

 :o

Any comments?

[Reply #7 on:]

Looks pretty cool!  I like how it has the 7 digit display integrated .

[Reply #8 on:]

Thanks TchnclFl and Vikas, ep, looks cool now.

Well I was making a program that uses the ADXL3XX, now I post a code and a video. This takes only one axis and obtain positions on the LED and shows a numeric value on the 7 segment display.

Code:

/* MES-1 V1.6
 Sample code to use one axis , from accelerometer ADXL320
 Displays numeric and position values using the MES.
 spacebird 2009 */


//LEDS
int p0 = 7;
int p1 = 6;
int p2 = 5;
int p3 = 4;

//For decoder
int p4 = 13;
int p5 = 12;
int p6 = 11;
int p7 = 10;

//Analog Input 0
int An0 = 0;

void setup(){

pinMode (p0,OUTPUT);  
pinMode (p1,OUTPUT);  
pinMode (p2,OUTPUT);
pinMode (p3,OUTPUT);

pinMode (p4,OUTPUT);  
pinMode (p5,OUTPUT);  
pinMode (p6,OUTPUT);
pinMode (p7,OUTPUT);

digitalWrite (p0,0);
digitalWrite (p1,0);
digitalWrite (p2,0);
digitalWrite (p3,0);

digitalWrite (p4,0);
digitalWrite (p5,0);
digitalWrite (p6,0);
digitalWrite (p7,0);

}

//Int variables
int a;
int b;
int DataAn0;
int Cent;
int PF;
int Num1;
int Num2;

//Float variables
float m;
float P;
float P1;

void loop(){
  
//Calculate m
a = 98;
b = 76;

m = 180 / (float)(a - b);

// Read actual value from accelerometer
 
 DataAn0 = analogRead (An0);
 DataAn0 = map(DataAn0,0,1024,0,1024);

//Calculate position
Cent = 87;

P = m*(DataAn0 - Cent) + 90;

P1 = round (P);

PF = abs((int)P1 - 90);

//Display position on LEDS

if ((P1 >= 0) && (P1 <= 30)){

  leds(1);
  delay (255);
  
}else if ((P1 >= 31) && (P1 <= 60)){

  leds(2);
  delay (255);
  
}else if ((P1 >= 61) && (P1 <= 90)){

  leds(5);
  delay (255);
  
}else if ((P1 >= 91) && (P1 <= 120)){

  leds(5);
  delay (255);
  
}else if ((P1 >= 121) && (P1 <= 150)){
  
  leds(3);
  delay (255);
  
}else if((P1 >= 151) && (P1 <= 180)){
  
  leds(4);
  delay (255);
  
}

//Display numeric value on 7 Segment Display

Num1 = PF / 10;
Num2 = PF % 10;

disp (Num1);
delay (250);
disp (Num2);
delay (250);
grad ();
delay (250);

}


void leds (int i){
  
switch (i){
  
  case 0:

digitalWrite (p0,0);
digitalWrite (p1,0);
digitalWrite (p2,0);
digitalWrite (p3,0);

break;


  case 1:

digitalWrite (p0,1);
digitalWrite (p1,0);
digitalWrite (p2,0);
digitalWrite (p3,0);

break;  
  
  case 2:
  
digitalWrite (p0,0);
digitalWrite (p1,1);
digitalWrite (p2,0);
digitalWrite (p3,0);

break;

  case 3:

digitalWrite (p0,0);
digitalWrite (p1,0);
digitalWrite (p2,1);
digitalWrite (p3,0);

break;

  case 4:

digitalWrite (p0,0);
digitalWrite (p1,0);
digitalWrite (p2,0);
digitalWrite (p3,1);

break;

  case 5:
  
digitalWrite (p0,0);
digitalWrite (p1,1);
digitalWrite (p2,1);
digitalWrite (p3,0);

break;
  

  }

}

void disp(int k){
  
  switch (k) {
  
  case 0:

  digitalWrite (p4,0);
  digitalWrite (p5,0);
  digitalWrite (p6,0);
  digitalWrite (p7,0);
  
  break;
  
  
  case 1:

  digitalWrite (p4,0);
  digitalWrite (p5,0);
  digitalWrite (p6,0);
  digitalWrite (p7,1);
  
  break;
    
  case 2:

  digitalWrite (p4,0);
  digitalWrite (p5,0);
  digitalWrite (p6,1);
  digitalWrite (p7,0);
  
  break;
    
  case 3:

  digitalWrite (p4,0);
  digitalWrite (p5,0);
  digitalWrite (p6,1);
  digitalWrite (p7,1);
  
  break;
  
  case 4:

  digitalWrite (p4,0);
  digitalWrite (p5,1);
  digitalWrite (p6,0);
  digitalWrite (p7,0);
  
  break;
  
  case 5:

  digitalWrite (p4,0);
  digitalWrite (p5,1);
  digitalWrite (p6,0);
  digitalWrite (p7,1);
  
  break;
  
  
  case 6:

  digitalWrite (p4,0);
  digitalWrite (p5,1);
  digitalWrite (p6,1);
  digitalWrite (p7,0);
  
  break;
  
  case 7:

  digitalWrite (p4,0);
  digitalWrite (p5,1);
  digitalWrite (p6,1);
  digitalWrite (p7,1);
  
  break;
  
  case 8:

  digitalWrite (p4,1);
  digitalWrite (p5,0);
  digitalWrite (p6,0);
  digitalWrite (p7,0);
  
  break;
  
  
  case 9:

  digitalWrite (p4,1);
  digitalWrite (p5,0);
  digitalWrite (p6,0);
  digitalWrite (p7,1);
  
  break;
  
  }
  
}


int grad(){
  
  digitalWrite (p4,1);
  digitalWrite (p5,1);
  digitalWrite (p6,0);
  digitalWrite (p7,0);
 
}

Fig. 1 - Video testing of MES-1 v1.6



 8-)

[Reply #9 on:]

Code update

Code:

/* MES-1 V1.6
 Sample code to use one axis , from accelerometer ADXL320
 Displays numeric and position values using the MES.
 spacebird 2009
 
 v0.1 - nov 2009
 v0.2 - dic 2009
 */


//LEDS
int pLED[] = {7,6,5,4};

//For decoder
int pDEC[] = {13,12,11,10};

//Analog Input 0
int An0 = 0;

int i;

void setup(){

for (i = 4; i <= 7; i++ ){

  pinMode (pLED[i], OUTPUT);
  pinMode (pDEC[i+6],OUTPUT);

}  

for (i = 4; i <= 7; i++){
  
  digitalWrite(pLED[i],0);
  digitalWrite(pDEC[i+6],0);  
  
}

}

//Int variables
int a;
int b;
int DataAn0;
int Cent;
int PF;
int Num1;
int Num2;

//Float variables
float m;
float P;
float P1;

void loop(){
  
//Calculate m
a = 98;
b = 76;

m = 180 / (float)(a - b);

// Read actual value from accelerometer
 
 DataAn0 = analogRead (An0);
 DataAn0 = map(DataAn0,0,1024,0,1024);

//Calculate position
Cent = 87;

P = m*(DataAn0 - Cent) + 90;

P1 = round (P);

PF = abs((int)P1 - 90);

//Display position on LEDS

if ((P1 >= 0) && (P1 <= 30)){

  leds(1);
  delay (255);
  
}else if ((P1 >= 31) && (P1 <= 60)){

  leds(2);
  delay (255);
  
}else if ((P1 >= 61) && (P1 <= 90)){

  leds(5);
  delay (255);
  
}else if ((P1 >= 91) && (P1 <= 120)){

  leds(5);
  delay (255);
  
}else if ((P1 >= 121) && (P1 <= 150)){
  
  leds(3);
  delay (255);
  
}else if((P1 >= 151) && (P1 <= 180)){
  
  leds(4);
  delay (255);
  
}

//Display numeric value on 7 Segment Display

Num1 = PF / 10;
Num2 = PF % 10;

disp (Num1);
delay (250);
disp (Num2);
delay (250);
grad ();
delay (250);

}


void leds (int i){
  
switch (i){
  
  case 0:

for (i = 4; i <= 7; i++){
  digitalWrite(pLED[i],0);
}

break;


  case 1:

digitalWrite (pLED[7],1);

for (i = 4; i <= 6; i++){
  digitalWrite(pLED[i],0);
  
}

break;  
  
  case 2:
  
for (i = 4; i <= 7; i++){

  if (i == 6){
   digitalWrite(pLED[6],1);

  }else{

   digitalWrite(pLED[i],0);

  }
  
}

break;

  case 3:

for (i = 4; i <= 7; i++){

  if (i == 5){

   digitalWrite(pLED[5],1);

  }else{

   digitalWrite(pLED[i],0);

  }
  
}

break;

  case 4:
  
digitalWrite (pLED[4],1);

for (i = 5; i <= 7; i++){

  digitalWrite(pLED[i],0);
  
}

break;

  case 5:

digitalWrite (pLED[7],0);
digitalWrite (pLED[6],1);
digitalWrite (pLED[5],1);
digitalWrite (pLED[4],0);

break;
  

  }

}

void disp(int k){
  
  switch (k) {
  
  case 0:

for (i = 10; i <= 13; i++){
  
  digitalWrite(pDEC[i],0);
  
}
  
  break;
  
  
  case 1:

  digitalWrite(pDEC[10],1);

  for (i = 11; i <= 13; i++){
  
    digitalWrite(pDEC[i],0);
  
  }

  break;
    
  case 2:

for (i = 10; i <= 13; i++){

  if (i == 11 ){
  
    digitalWrite(pDEC[11],1);
  
  }else{
    
    digitalWrite(pDEC[i],0);
  }
  
}

  break;
    
  case 3:

  digitalWrite (pDEC[13],0);
  digitalWrite (pDEC[12],0);
  digitalWrite (pDEC[11],1);
  digitalWrite (pDEC[10],1);
  
  break;
  
  case 4:

for (i = 10; i <= 13; i++){
  
  if (i == 12){
    
    digitalWrite(pDEC[12],1);
  
  }else{
    
  digitalWrite(pDEC[i],0);
    
  }
  
}

  break;
  
  case 5:

  digitalWrite (pDEC[13],0);
  digitalWrite (pDEC[12],1);
  digitalWrite (pDEC[11],0);
  digitalWrite (pDEC[10],1);
  
  break;
  
  
  case 6:

  digitalWrite (pDEC[13],0);
  digitalWrite (pDEC[12],1);
  digitalWrite (pDEC[11],1);
  digitalWrite (pDEC[10],0);
  
  break;
  
  case 7:

  for (i = 10; i <= 13; i++){
    
    if (i == 13){
      
      digitalWrite(pDEC[13],0);
      
    }else{
      
     digitalWrite(pDEC[i],1);
    
    }
    
  }

  break;
  
  case 8:

  for (i = 10; i <= 13; i++){
    
    if (i == 13){
      
      digitalWrite(pDEC[13],1);
      
    }else{
      
     digitalWrite(pDEC[i],0);
    
    }
    
  }
  
  break;
  
    case 9:

  digitalWrite (pDEC[13],1);
  digitalWrite (pDEC[12],0);
  digitalWrite (pDEC[11],0);
  digitalWrite (pDEC[10],1);
  
  break;
  
  }
  
}


int grad(){
  
  digitalWrite (pDEC[13],1);
  digitalWrite (pDEC[12],1);
  digitalWrite (pDEC[11],0);
  digitalWrite (pDEC[10],0);
 
}

 :o

[Reply #10 on:]

Ok, well now MES-1 has a library, easy :o to use.

Librar

Code:

/*
    Mes1dlc.h

      MES-1 Lib  for Disp and LEDs
    v 0.1 12 dec 2009
    Created > sgbzona
*/

#ifndef Mes1dlc_h
#define Mes1dlc_h

#include "WProgram.h"

class Mes1dlc{

      public:
       Mes1dlc(uint8_t d3, uint8_t d2, uint8_t d1, uint8_t d0);
       // pins used by Display or LEDs
       void init(uint8_t d3, uint8_t d2, uint8_t d1, uint8_t d0);
       void disp(int k);
       void ledsC(int k);
       void ledsE(int k);

       private:
             uint8_t _pPIN[4];
             
};

#endif

Code:

/*
    Mes1dlc.cpp

      MES-1 code  for Disp and LEDs
    v 0.1 12 dec 2009
    Created > sgbzona
*/

#include "WProgram.h"
#include "Mes1dlc.h"

int Num [][16] = {{0,0,0,0},{0,0,0,1},{0,0,1,0},{0,0,1,1},{0,1,0,0},{0,1,0,1},{0,1,1,0},{0,1,1,1},{1,0,0,0},{1,0,0,1},{1,0,1,0},{1,0,1,1},{1,1,0,0},{1,1,0,1},{1,1,1,0},{1,1,1,1}};

int NumE [][19] = {{0,0,0,0},{0,0,0,1},{0,0,1,0},{0,1,0,0},{1,0,0,0},{1,0,0,1},{0,1,1,0},{0,0,0,0},{0,0,0,1},{0,0,1,1},{0,1,1,1},{1,1,1,1},{0,1,1,0},{1,1,0,0},{0,0,1,1},{1,0,1,0},{0,1,0,1},{0,0,0,0},{1,1,1,1}};


Mes1dlc::Mes1dlc(uint8_t d3, uint8_t d2, uint8_t d1, uint8_t d0){

      init (d3, d2, d1, d0);

}

      
void Mes1dlc::init(uint8_t d3, uint8_t d2, uint8_t d1, uint8_t d0){

int i;
            
            _pPIN[0] = d3;      
            _pPIN[1] = d2;      
            _pPIN[2] = d1;      
            _pPIN[3] = d0;      

      
      for (i = 0; i <= 3; i++){
            
            pinMode(_pPIN[i],OUTPUT);
            digitalWrite(_pPIN[i],0);
      
      }      
      
      
}

void Mes1dlc::disp(int k){

int i;
int j;

              i = k;
              
                  for (j = 0; j <= 3; j++){
                        
                  digitalWrite(_pPIN[j],Num[i][j]);
                  
                  }
      
}

void Mes1dlc::ledsC(int k){

int i;
int j;
      
           i = k;
              
                  for (j = 0; j <= 3; j++){
                        
                  digitalWrite(_pPIN[j],Num[i][j]);
                  
                  }
      
}

void Mes1dlc::ledsE(int k){

int i;
int j;
      
           i = k;
              
                  for (j = 0; j <= 3; j++){
                        
                  digitalWrite(_pPIN[j],NumE[i][j]);
                  
                  }
      
}
      

New Sample code.

Code:

/* MES-1 V1.6
 Sample code to use one axis , from accelerometer ADXL320
 Displays numeric and position values using the MES.
 spacebird 2009
 
 v0.1 - nov 2009 // Basic CONFIG
 v0.2 - dic 2009 // Using Basic CONFIG w/Cycles
 v0.3 - dic 2009 // Using a Library

*/

#include <Mes1dlc.h>


//LEDS
Mes1dlc mes1PLEDS (7,6,5,4);

//For decoder
Mes1dlc mes1PDISP (13,12,11,10);

//Analog Input 0
int An0 = 0;

int i;

//Int variables
int a;
int b;
int DataAn0;
int Cent;
int PF;
int Num1;
int Num2;

//Float variables
float m;
float P;
float P1;

void setup(){

}


void loop(){
  
//Calculate m
a = 98;
b = 76;

m = 180 / (float)(a - b);

// Read actual value from accelerometer
 
 DataAn0 = analogRead (An0);
 DataAn0 = map(DataAn0,0,1024,0,1024);

//Calculate position
Cent = 87;

P = m*(DataAn0 - Cent) + 90;

P1 = round (P);

PF = abs((int)P1 - 90);

//Display position on LEDS

if ((P1 >= 0) && (P1 <= 30)){

  mes1PLEDS.ledsE(4);
  delay (255);
  
}else if ((P1 >= 31) && (P1 <= 60)){

  mes1PLEDS.ledsE(3);
  delay (255);
  
}else if ((P1 >= 61) && (P1 <= 90)){

  mes1PLEDS.ledsE(6);
  delay (255);
  
}else if ((P1 >= 91) && (P1 <= 120)){

  mes1PLEDS.ledsE(6);
  delay (255);
  
}else if ((P1 >= 121) && (P1 <= 150)){
  
  mes1PLEDS.ledsE(2);
  delay (255);
  
}else if((P1 >= 151) && (P1 <= 180)){
  
  mes1PLEDS.ledsE(1);
  delay (255);
  
}

//Display numeric value on 7 Segment Display

Num1 = PF / 10;
Num2 = PF % 10;

mes1PDISP.disp(Num1);
delay (250);
mes1PDISP.disp(Num2);
delay (250);
mes1PDISP.disp(12);
delay (250);

}

[Reply #11 on:]

Like it!

Just a tip: You can cut down RAM usage to 6,25%

Code:

Num [][16] = {{0,0,0,0},{0,0,0,1},{0,0,1,0},{0,0,1,1},{0,1,0,0},{0,1,0,1},{0,1,1,0},{0,1,1,1},{1,0,0,0},{1,0,0,1},{1,0,1,0},{1,0,1,1},{1,1,0,0},{1,1,0,1},{1,1,1,0},{1,1,1,1}};

Use:

Code:

byte Num[8] = {
      B00000001,
      B00100011
      B01000101,
      B01100111,
      B10001001,
      B10101011,
      B11001101,
      B11101111
};

You need to change the way you access the data, but arduino provides with some bitRead/bitWrite functions (plus some more). Look at the reference section

Gool luck!

[Reply #12 on:]

Cool... looking to improve it... nice tip, working on vectors now...