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.
:-?
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?
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.
#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;
}
}
Nice , A lot of stuff can be experimented using this.
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.
Just an update.
MES V1.6 with components.
Comments ?
Assembling finished.
Fig. 1 - MES v1.6
Fig. 2 - MES v1.6 with Arduino Duemilanove
:o
Any comments?
Looks pretty cool! I like how it has the 7 digit display integrated :).
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.
/* 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
Code update
/* 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
Ok, well now MES-1 has a library, easy :o to use.
Librar
/*
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
/*
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.
/* 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);
}
Like it!
Just a tip: You can cut down RAM usage to 6,25%
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:
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!
Cool... looking to improve it... nice tip, working on vectors now...